目錄.......................................................................................................................................... 1
譯者的話............................................................................................................................. 14
第一周概貌............................................................................................................................. 16
從這里開始............................................................................................................. 16
第一天SQL 簡介.................................................................................................................. 17
SQL 簡史................................................................................................................ 17
數(shù)據(jù)庫簡史............................................................................................................. 17
設(shè)計(jì)數(shù)據(jù)庫的結(jié)構(gòu)................................................................................................... 21
SQL 總覽......................................................................................................... 23
流行的SQL 開發(fā)工具....................................................................................... 24
SQL 在編程中的應(yīng)用........................................................................................ 27
第二天查詢— — SELECT 語句的使用................................................................................... 30
目標(biāo).................................................................................................................... 30
背景................................................................................................................. 30
一般的語法規(guī)則............................................................................................... 30
你的第一個(gè)查詢............................................................................................... 33
總結(jié).................................................................................................................... 37
問與答................................................................................................................. 38
校練場.................................................................................................................... 38
練習(xí).................................................................................................................... 39
第三天表達(dá)式條件語句與運(yùn)算.......................................................................................... 40
第四天函數(shù)對數(shù)據(jù)的進(jìn)一步處理....................................................................................... 60
目標(biāo).................................................................................................................... 60
匯總函數(shù)................................................................................................................. 60
COUNT............................................................................................................ 61
SUM ................................................................................................................ 61
AVG................................................................................................................. 63
MAX................................................................................................................ 63
MIN................................................................................................................. 64
VARIANCE...................................................................................................... 65
STDDEV.......................................................................................................... 66
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日期/時(shí)間函數(shù)......................................................................................................... 66
ADD_MONTHS................................................................................................ 67
LAST_DAY...................................................................................................... 68
MONTHS_BETWEEN....................................................................................... 69
NEW_TIME...................................................................................................... 70
NEXT_DAY...................................................................................................... 71
SYSDATE......................................................................................................... 72
數(shù)學(xué)函數(shù)................................................................................................................. 72
ABS ................................................................................................................. 73
CEIL 和FLOOR ............................................................................................... 73
COS COSH SIN SINH TAN TANH........................................................ 73
EXP................................................................................................................. 75
LN and LOG..................................................................................................... 75
MOD................................................................................................................ 76
POWER............................................................................................................ 77
SIGN ............................................................................................................... 77
SQRT ............................................................................................................... 78
字符函數(shù)................................................................................................................. 79
CHR................................................................................................................. 79
CONCAT .......................................................................................................... 79
INITCAP.......................................................................................................... 80
LOWER 和UPPER ........................................................................................... 81
LPAD 與RPAD................................................................................................. 82
LTRIM 與RTRIM............................................................................................. 83
REPLACE ........................................................................................................ 84
SUBSTR........................................................................................................... 85
TRANSLATE.................................................................................................... 88
INSTR ............................................................................................................. 88
LENGTH.......................................................................................................... 89
轉(zhuǎn)換函數(shù)................................................................................................................. 89
TO_CHAR........................................................................................................ 90
TO_NUMBER................................................................................................... 91
其它函數(shù)................................................................................................................. 91
GREATEST 與LEAST...................................................................................... 91
USER............................................................................................................... 92
總結(jié)........................................................................................................................ 92
問與答.................................................................................................................... 93
校練場.................................................................................................................... 93
練習(xí)........................................................................................................................ 94
第五天SQL 中的子句........................................................................................................... 95
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目標(biāo).................................................................................................................... 95
WHERE 子句.......................................................................................................... 96
STARTING WITH子句............................................................................................ 98
ORDER BY 子句..................................................................................................... 99
GROUP BY 子句....................................................................................................104
HAVING 子句.........................................................................................................109
子句的綜合應(yīng)用.....................................................................................................112
總結(jié).......................................................................................................................117
問與答...................................................................................................................117
校練場...................................................................................................................117
練習(xí).......................................................................................................................118
第六天表的聯(lián)合..................................................................................................................119
介紹.......................................................................................................................119
在一個(gè)SELECT 語句中使用多個(gè)表.........................................................................119
正確地找到列..................................................................................................123
等值聯(lián)合................................................................................................................124
不等值聯(lián)合............................................................................................................129
外部聯(lián)合與內(nèi)部聯(lián)合..............................................................................................130
表的自我聯(lián)合.........................................................................................................132
總結(jié).......................................................................................................................134
問與答...................................................................................................................134
校練場...................................................................................................................134
練習(xí).......................................................................................................................135
第七天子查詢內(nèi)嵌的SQL 子句........................................................................................136
目標(biāo)...................................................................................................................136
建立一個(gè)子查詢.....................................................................................................136
在子查詢中使用匯總函數(shù).......................................................................................140
子查詢的嵌套.........................................................................................................141
相關(guān)子查詢............................................................................................................144
EXISTS ANY ALL 的使用.................................................................................147
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總結(jié).......................................................................................................................151
問與答...................................................................................................................151
校練場...................................................................................................................152
練習(xí)...................................................................................................................153
第一周回顧............................................................................................................................154
預(yù)覽.......................................................................................................................154
第二周概貌............................................................................................................................155
這一周都講些什么..................................................................................................155
第八天操作數(shù)據(jù)..................................................................................................................156
目標(biāo).......................................................................................................................156
數(shù)據(jù)操作語句.........................................................................................................156
插入語句................................................................................................................157
INSERT VALUES 語句.....................................................................................157
INSERT SELECT 語句.....................................................................................161
UPDATE語句........................................................................................................163
DELETE 語句.........................................................................................................166
從外部數(shù)據(jù)源中導(dǎo)入和導(dǎo)出數(shù)據(jù).............................................................................169
Microsoft Access ..............................................................................................170
Microsoft and Sybase SQL Server ......................................................................171
Personal Oracle7...............................................................................................171
總結(jié).......................................................................................................................172
問與答...................................................................................................................172
校練場...................................................................................................................173
練習(xí).......................................................................................................................173
第九天創(chuàng)建和操作表...........................................................................................................174
目標(biāo)...................................................................................................................174
CREATE DATABASE 語句......................................................................................174
建立數(shù)據(jù)庫時(shí)的選項(xiàng).......................................................................................175
設(shè)計(jì)數(shù)據(jù)庫.....................................................................................................176
建立數(shù)據(jù)字典..................................................................................................176
建立關(guān)鍵字段..................................................................................................177
CREATE TABLE 語句.............................................................................................178
表名................................................................................................................179
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FIRST NAME..................................................................................................179
空值屬性.........................................................................................................180
唯一屬性.........................................................................................................181
表的存儲(chǔ)與尺寸的調(diào)整....................................................................................183
用一個(gè)已經(jīng)存在的表來建表.............................................................................184
ALTER TABLE 語句...............................................................................................185
DROP TABLE 語句.................................................................................................186
DROP DATABASE語句..........................................................................................187
總結(jié).......................................................................................................................188
問與答...................................................................................................................188
校練場...................................................................................................................189
練習(xí).......................................................................................................................190
第10 天創(chuàng)建視圖和索引.......................................................................................................191
目標(biāo).......................................................................................................................191
使用視圖................................................................................................................192
列的重命名.....................................................................................................196
SQL 對視圖的處理過程...................................................................................197
在SELECT 語句使用約束................................................................................201
在視圖中修改數(shù)據(jù)...........................................................................................201
在視圖中修改數(shù)據(jù)的幾個(gè)問題.........................................................................203
通用應(yīng)用程序的視圖.......................................................................................204
刪除視圖語句..................................................................................................207
使用索引................................................................................................................207
什么是索引..................................................................................................207
使用索引的技巧..............................................................................................212
對更多的字段進(jìn)行索引....................................................................................212
在創(chuàng)建索引時(shí)使用UNIQUE 關(guān)鍵字.................................................................214
索引與歸并.....................................................................................................216
群集簇的使用...........................................................................................217
總結(jié).......................................................................................................................218
問與答................................................................................................................219
校練場...................................................................................................................219
練習(xí)...................................................................................................................220
第11 天事務(wù)處理控制.........................................................................................................221
目標(biāo)...................................................................................................................221
事務(wù)控制................................................................................................................221
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銀行應(yīng)用程序..................................................................................................222
開始事務(wù)處理..................................................................................................223
結(jié)束事務(wù)處理..................................................................................................225
取消事務(wù)處理..................................................................................................228
在事務(wù)中使用保存點(diǎn).......................................................................................231
總結(jié).......................................................................................................................234
問與答...................................................................................................................234
校練場...................................................................................................................235
練習(xí).......................................................................................................................235
第12 天數(shù)據(jù)庫安全............................................................................................................236
前提數(shù)據(jù)庫管理員..............................................................................................236
流行的數(shù)據(jù)庫產(chǎn)品與安全.......................................................................................237
如何讓一個(gè)數(shù)據(jù)庫變得安全....................................................................................237
Personal Oracle7 與安全..........................................................................................238
創(chuàng)建用戶.........................................................................................................238
創(chuàng)建角色.........................................................................................................240
用戶權(quán)限.........................................................................................................242
為安全的目的而使用視圖................................................................................247
總結(jié).......................................................................................................................251
問與答...................................................................................................................252
校練場...................................................................................................................252
練習(xí).......................................................................................................................253
第13 天高級 SQL.................................................................................................................254
目標(biāo)...................................................................................................................254
臨時(shí)表...................................................................................................................254
Title ................................................................................................................257
游標(biāo).......................................................................................................................259
創(chuàng)建游標(biāo).........................................................................................................260
打開游標(biāo).........................................................................................................260
使用游標(biāo)來進(jìn)行翻閱.......................................................................................261
測試游標(biāo)的狀態(tài)..............................................................................................262
關(guān)閉游標(biāo).........................................................................................................263
游標(biāo)的適用范圍..............................................................................................264
創(chuàng)建和使用存貯過程..............................................................................................265
在存貯過程中使用參數(shù)....................................................................................267
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刪除一個(gè)存貯過程...........................................................................................269
存貯過程的嵌套..............................................................................................270
設(shè)計(jì)和使用觸發(fā)機(jī)制..............................................................................................272
觸發(fā)機(jī)制與事務(wù)處理.......................................................................................273
使用觸發(fā)機(jī)制時(shí)的限制....................................................................................275
觸發(fā)機(jī)制的嵌套..............................................................................................275
在選擇語句中使用更新和刪除................................................................................275
在執(zhí)行前測試選擇語句....................................................................................276
嵌入型SQL............................................................................................................277
靜態(tài)SQL 與動(dòng)態(tài)SQL.....................................................................................277
使用SQL 來編程....................................................................................................279
總結(jié).......................................................................................................................280
問與答...................................................................................................................280
校練場...................................................................................................................280
練習(xí).......................................................................................................................281
第14 天動(dòng)態(tài)使用SQL ........................................................................................................282
目標(biāo).......................................................................................................................282
快速入門................................................................................................................282
ODBC .............................................................................................................282
Personal Oracle 7..............................................................................................283
InterBase SQL ISQL ...................................................................................283
Visual C++ ......................................................................................................284
Delphi.............................................................................................................284
設(shè)置.......................................................................................................................284
創(chuàng)建數(shù)據(jù)庫............................................................................................................285
使用MS QUERY 來完成鏈接..................................................................................290
將VISUAL C++與SQL 結(jié)合使用...........................................................................292
將DELPHI 與SQL 結(jié)合使用..................................................................................296
總結(jié).......................................................................................................................302
問與答...................................................................................................................303
校練場...................................................................................................................303
練習(xí).......................................................................................................................303
第二周回顧............................................................................................................................304
第三周概貌............................................................................................................................305
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應(yīng)用你對SQL 的知識.............................................................................................305
第15 天對SQL 語句優(yōu)化以提高其性能...............................................................................306
目標(biāo).......................................................................................................................306
讓你的SQL 語句更易讀.........................................................................................307
全表掃描................................................................................................................308
加入一個(gè)新的索引..................................................................................................309
在查詢中各個(gè)元素的布局.......................................................................................309
過程................................................................................................................311
避免使用OR...................................................................................................311
OLAP 與OLTP 的比較...........................................................................................313
OLTP 的調(diào)試...................................................................................................313
OLAP 的調(diào)試..................................................................................................314
批量載入與事務(wù)處理進(jìn)程.......................................................................................314
刪除索引以優(yōu)化數(shù)據(jù)的載入....................................................................................316
經(jīng)常使用COMMIT 來讓DBA 走開........................................................................316
在動(dòng)態(tài)環(huán)境中重新生成表和索引.............................................................................317
數(shù)據(jù)庫的調(diào)整.........................................................................................................319
性能的障礙............................................................................................................322
內(nèi)置的調(diào)整工具.....................................................................................................323
總結(jié).......................................................................................................................323
問與答...................................................................................................................324
校練場...................................................................................................................324
練習(xí).......................................................................................................................324
第16 天用視圖從數(shù)據(jù)字典中獲得信息................................................................................326
目標(biāo).......................................................................................................................326
數(shù)據(jù)字典簡介.........................................................................................................326
用戶的數(shù)據(jù)字典.....................................................................................................327
數(shù)據(jù)字典中的內(nèi)容..................................................................................................327
Oracle 的數(shù)據(jù)字典...........................................................................................328
Sybase 的數(shù)據(jù)字典..........................................................................................328
ORACLE 數(shù)據(jù)字典的內(nèi)部結(jié)構(gòu)...............................................................................328
用戶視圖.........................................................................................................328
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系統(tǒng)數(shù)據(jù)庫管理員視圖....................................................................................336
數(shù)據(jù)庫對象.....................................................................................................339
數(shù)據(jù)庫的生長..................................................................................................343
動(dòng)態(tài)執(zhí)行視圖..................................................................................................347
總結(jié).......................................................................................................................349
問與答...................................................................................................................349
校練場...................................................................................................................350
練習(xí).......................................................................................................................350
第17 天使用SQL 來生成SQL 語句....................................................................................351
目標(biāo).......................................................................................................................351
使用SQL 來生成SQL 語句的目的..........................................................................351
幾個(gè)SQL*PLUS 命令.............................................................................................352
SET ECHO ON/OFF.........................................................................................353
SET FEEDBACK ON/OFF................................................................................353
SET HEADING ON/OFF ..................................................................................353
SPOOL FILENAME/OFF..................................................................................353
START FILENAME..........................................................................................354
ED FILENAME................................................................................................354
計(jì)算所有的表中的行數(shù)...........................................................................................354
為多個(gè)用戶賦予系統(tǒng)權(quán)限.......................................................................................359
將你的表的權(quán)限賦予其它的用戶.............................................................................361
在載入數(shù)據(jù)時(shí)解除對數(shù)的約束................................................................................363
一次創(chuàng)建多個(gè)同義字..............................................................................................364
為你的表創(chuàng)建視圖..................................................................................................368
在一個(gè)計(jì)劃中清除其所有的表的內(nèi)容......................................................................369
使用SQL 來生成SHELL 腳本................................................................................371
再建表和索引.........................................................................................................372
總結(jié).......................................................................................................................373
問與答...................................................................................................................373
校練場...................................................................................................................373
練習(xí).......................................................................................................................374
第18 天PL/SQL 簡介..........................................................................................................376
目標(biāo).......................................................................................................................376
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入門.......................................................................................................................376
在PL/SQL 中的數(shù)據(jù)類型........................................................................................377
字符串類型.....................................................................................................377
數(shù)值數(shù)據(jù)類型..................................................................................................378
二進(jìn)制數(shù)據(jù)類型.....................................................................................................378
日期數(shù)據(jù)類型.........................................................................................................378
邏輯數(shù)據(jù)類型.........................................................................................................378
ROWID...........................................................................................................379
PL/SQL 塊的結(jié)構(gòu)...................................................................................................379
注釋.......................................................................................................................380
DECLARE 部分......................................................................................................380
變量聲明.........................................................................................................380
常量定義.........................................................................................................381
指針定義.........................................................................................................381
%TYPE 屬性...................................................................................................382
%ROWTYPE 屬性...........................................................................................382
%ROWCOUNT 屬性........................................................................................383
Procdure 部分.........................................................................................................383
BEGIN … … END..............................................................................................383
指針控制命令..................................................................................................384
條件語句.........................................................................................................386
LOOPS 循環(huán)....................................................................................................387
EXCEPTION 部分..................................................................................................390
激活EXCEPTION 異常.............................................................................390
異常的處理.....................................................................................................391
將輸入返回給用戶..................................................................................................392
在PL/SQL 中的事務(wù)控制........................................................................................393
讓所有的事在一起工作....................................................................................394
示例表及數(shù)據(jù)..................................................................................................394
一個(gè)簡單的PL/SQL 語句塊.............................................................................395
又一個(gè)程序.....................................................................................................398
存儲(chǔ)過程包和觸發(fā)機(jī)制.......................................................................................403
總結(jié).......................................................................................................................406
問與答...................................................................................................................407
校練場...................................................................................................................407
練習(xí).......................................................................................................................407
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第19 天TRANSACT-SQL 簡介............................................................................................408
目標(biāo).......................................................................................................................408
TRANSACT-SQL 概貌............................................................................................408
對ANSI SQL 的擴(kuò)展..............................................................................................408
誰需要使用TRANSACT-SQL..........................................................................409
TRANSACT-SQL 的基本組件..........................................................................409
數(shù)據(jù)類型................................................................................................................409
使用TRANSACT-SQL 來訪問數(shù)據(jù)庫......................................................................411
BASEBALL 數(shù)據(jù)庫.........................................................................................411
定義局部變量..................................................................................................414
定義全局變量..................................................................................................414
使用變量.........................................................................................................415
PRINT 命令....................................................................................................417
流控制...................................................................................................................417
BEGIN … … END 語句......................................................................................418
IF … … ELSE 語句............................................................................................418
EXIST 條件.....................................................................................................421
WHILE 循環(huán)....................................................................................................422
使用WHILE 循環(huán)在表中翻閱..........................................................................424
TRANSACT-SQL 中的通配符.................................................................................426
使用COMPUTE 來生成摘要報(bào)告............................................................................426
日期轉(zhuǎn)換................................................................................................................427
SQL SERVER 的診斷工具— — SET 命令..................................................................427
總結(jié).......................................................................................................................428
問與答...................................................................................................................428
校練場...................................................................................................................429
練習(xí).......................................................................................................................429
第20 天SQL*PLUS .............................................................................................................430
目標(biāo).......................................................................................................................430
簡介.......................................................................................................................430
SQL*PLUS 緩存.....................................................................................................430
DESCRIBE 命令.....................................................................................................435
SHOW 命令............................................................................................................436
文件命令................................................................................................................438
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SAVE GET EDIT 命令................................................................................438
運(yùn)行一個(gè)文件..................................................................................................439
查詢的假脫機(jī)輸出...........................................................................................440
SET 命令...............................................................................................................442
LOGIN.SQL 文件...................................................................................................445
CLEAR 命令..........................................................................................................446
將你的輸出格式化..................................................................................................446
TTITLE 與BTITLE..........................................................................................446
格式化列COLUMN HEADING FORMAT ..............................................447
報(bào)表與分類匯總.....................................................................................................449
BREAK ON.....................................................................................................449
COMPUTE......................................................................................................450
在SQL*PLUS 中使用變量......................................................................................453
DEFINE ..........................................................................................................454
ACCEPT .........................................................................................................455
NEW_VALUE..................................................................................................457
DUAL 表........................................................................................................458
DECODE 函數(shù).................................................................................................459
日期轉(zhuǎn)換................................................................................................................462
運(yùn)行一系列的SQL 文件.........................................................................................465
在你的SQL 腳本中加入注釋..................................................................................466
高級報(bào)表................................................................................................................467
總結(jié).......................................................................................................................469
問與答...................................................................................................................469
校練場...................................................................................................................469
練習(xí).......................................................................................................................470
第21 天常見的SQL 錯(cuò)誤及解決方法..................................................................................471
目標(biāo)...................................................................................................................471
介紹.......................................................................................................................471
常見的錯(cuò)誤............................................................................................................471
Table or View Does Not Exist.............................................................................471
Invalid Username or Password ...........................................................................472
FROM Keyword Not Specified...........................................................................473
Group Function Is Not Allowed Here ..................................................................474
Invalid Column Name........................................................................................475
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Missing Keyword .............................................................................................475
Missing Left Parenthesis ....................................................................................476
Missing Right Parenthesis ..................................................................................477
Missing Comma................................................................................................478
Column Ambiguously Defined ...........................................................................478
Not Enough Arguments for Function...................................................................480
Not Enough Values............................................................................................481
Integrity Constraint Violated--Parent Key Not Found ............................................482
Oracle Not Available .........................................................................................483
Inserted Value Too Large for Column ..................................................................483
TNS:listener Could Not Resolve SID Given in Connect Descriptor .........................484
Insufficient Privileges During Grants...................................................................484
Escape Character in Your Statement--Invalid Character .........................................485
Cannot Create Operating System File ..................................................................485
Common Logical Mistakes.................................................................................485
Using Reserved Words in Your SQL statement .....................................................486
The Use of DISTINCT When Selecting Multiple Columns.....................................487
Dropping an Unqualified Table ...........................................................................487
The Use of Public Synonyms in a Multischema Database.......................................488
The Dreaded Cartesian Product ..........................................................................488
Failure to Enforce File System Structure Conventions ...........................................489
Allowing Large Tables to Take Default Storage Parameters....................................489
Placing Objects in the System Tablespace............................................................490
Failure to Compress Large Backup Files ..............................................................491
Failure to Budget System Resources ...................................................................491
Preventing Problems with Your Data...................................................................491
Searching for Duplicate Records in Your Database................................................491
總結(jié)...................................................................................................................491
校練場...................................................................................................................492
練習(xí).......................................................................................................................492
第三周回顧............................................................................................................................494
附件A 在SQL 中的常見術(shù)語...............................................................................................495
ALTER DATABASE.........................................................................................495
ALTER USER..................................................................................................495
BEGIN TRANSACTION ..................................................................................495
CLOSE CURSOR.............................................................................................495
COMMIT TRANSACTION...............................................................................496
CREATE DATABASE.......................................................................................496
CREATE INDEX..............................................................................................496
CREATE PROCEDURE....................................................................................496
CREATE TABLE..............................................................................................497
CREATE TRIGGER..........................................................................................497
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CREATE USER................................................................................................497
CREATE VIEW................................................................................................497
DEALLOCATE CURSOR.................................................................................498
DROP DATABASE...........................................................................................498
DROP INDEX..................................................................................................498
DROP PROCEDURE........................................................................................498
DROP TABLE..................................................................................................498
DROP TRIGGER .............................................................................................499
DROP VIEW....................................................................................................499
EXECUTE.......................................................................................................499
FETCH............................................................................................................499
FROM.............................................................................................................499
GRANT...........................................................................................................500
GROUP BY.....................................................................................................500
HAVING..........................................................................................................500
INTERSECT....................................................................................................500
ORDER BY.....................................................................................................500
ROLLBACK TRANSACTION ..........................................................................500
REVOKE.........................................................................................................500
SELECT..........................................................................................................501
SET TRANSACTION.......................................................................................501
UNION............................................................................................................501
WHERE..........................................................................................................501
*.....................................................................................................................501
附件B 在第14 天中的C++源代碼清單................................................................................502
附件 C 第14 天中的Delphi 源代碼清單...............................................................................521
附件D 參考內(nèi)容..................................................................................................................524
書..........................................................................................................................524
Developing Sybase Applications ..................................................................524
Sybase Developer's Guide ...........................................................................524
Microsoft SQL Server 6.5 Unleashed, 2E ......................................................524
Teach Yourself Delphi in 21 Days ................................................................524
Delphi Developer's Guide ...........................................................................524
Delphi Programming Unleashed ..................................................................525
Essential Oracle 7.2 ...................................................................................525
Developing Personal Oracle7 for Windows 95 Applications ............................525
Teach Yourself C++ Programming in 21 Days ...............................................525
Teach Yourself Tansact-SQL in 21 Days .......................................................525
Teach Yourself PL/SQL in 21 Days ............................................................525
雜志...................................................................................................................526
DBMS.............................................................................................................526
Oracle Magazine...............................................................................................526
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SQL 的互聯(lián)網(wǎng)資源.................................................................................................526
附件E ACSLL 碼表.............................................................................................................527
附件F 問題與練習(xí)答案........................................................................................................533
第一天SQL 簡介.................................................................................................533
問題答案.........................................................................................................533
練習(xí)答案.........................................................................................................533
第二天查詢— — SELECT 語句的使用..................................................................533
問題答案.........................................................................................................533
練習(xí)答案.........................................................................................................534
第三天表達(dá)式條件語句與運(yùn)算.........................................................................535
問題答案.........................................................................................................535
練習(xí)答案.........................................................................................................535
第四天函數(shù)對獲得數(shù)據(jù)的進(jìn)一步處理...............................................................536
問題答案.........................................................................................................536
練習(xí)答案.........................................................................................................537
第五天SQL 中的子句..........................................................................................538
問題答案.........................................................................................................538
練習(xí)答案.........................................................................................................538
第六天表的聯(lián)接..................................................................................................540
問題答案.........................................................................................................540
練習(xí)答案.........................................................................................................541
第7 天子查詢內(nèi)嵌的SELECT 語句............................................................542
問題答案.........................................................................................................542
練習(xí)答案.........................................................................................................544
第八天操作數(shù)據(jù)..................................................................................................544
問題答案.........................................................................................................544
練習(xí)答案.........................................................................................................546
第九天創(chuàng)建和操作表...........................................................................................546
問題答案.........................................................................................................546
練習(xí)答案.........................................................................................................548
第10 天創(chuàng)建視圖和索引.......................................................................................549
問題答案.........................................................................................................549
練習(xí)答案.....................................................................................................550
第11 天事務(wù)處理控制.........................................................................................550
問題答案.........................................................................................................550
練習(xí)答案.........................................................................................................551
第12 天數(shù)據(jù)庫安全............................................................................................552
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問題答案.........................................................................................................552
練習(xí)答案.........................................................................................................552
第13 天高級 SQL.................................................................................................553
問題答案.........................................................................................................553
練習(xí)答案.........................................................................................................553
第14 天動(dòng)態(tài)使用SQL ........................................................................................554
問題答案.........................................................................................................554
練習(xí)答案.........................................................................................................554
第15 天對SQL 語句優(yōu)化以提高其性能...............................................................555
問題答案.........................................................................................................555
練習(xí)答案.........................................................................................................555
第16 天用視圖從數(shù)據(jù)字典中獲得信息................................................................557
問題答案.........................................................................................................557
練習(xí)答案.........................................................................................................557
第17 天使用SQL 來生成SQL 語句....................................................................558
問題答案.........................................................................................................558
練習(xí)答案.........................................................................................................560
第18 天PL/SQL 簡介..........................................................................................561
問題答案.........................................................................................................561
練習(xí)答案.........................................................................................................561
第19 天TRANSACT-SQL 簡介............................................................................562
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