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SQL> alter table xxx add constraint PK_XXX primary key(unid);
SQL> alter table xxx add constraint UK_XXX unique(xxx,xxx);
SQL> alter table xxx add constraint FK_XXX foreign key(xxx) references xxx(xxx);
SQL> alter table xxx add constraint check(xxx like '1%‘)
enable(disable)运行过程中 validate(novalidate)已经存在的
initially deffered (immediate) commit的时候check,DML的时候 前提是deferable的才可以modify
SQL> alter session set constraints=deffered (immediate)
增加子句exceptions into exceptions
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Oracle忘记数据库密码
2011-07-01 23:45 768alter user xxx identified by xx ... -
Oracle内存全面分析
2010-07-07 16:49 856http://www.hellodba.com/Doc/ora ... -
(15)Managing User
2010-07-07 13:59 843SQL> alter user xxx quo ... -
(14) Managing Password Security and Resources
2010-07-07 13:59 755Password Management SQL> ... -
(12) Managing Indexes
2010-07-07 13:58 739a -
(11)Managing Table
2010-07-07 13:57 807Storing User Data(1) Regular t ... -
(10) Managing Undo Data
2010-07-07 13:56 799show parameter undo; ... -
(9) Storage Structure and Relationships
2010-07-07 13:55 978Extent Allocat ... -
(8) Managing Tablespaces and Data files
2010-07-07 13:55 1101SQL> select * from v$tabl ... -
(7) Maintaining Redo Log Files
2010-07-07 13:54 1143SQL> select * from v$lo ... -
(6) Maintaining Control file
2010-07-07 13:54 710select * from v$database; se ... -
(5)Data Dictionary Content and Usage
2010-07-07 13:53 1013Data Dictionary(1) Data Dictio ... -
(4)Create a Database
2010-07-07 13:52 813Operating System EnvironmentOR ... -
(3)Manage a Oracle Instance
2010-07-07 13:39 811Init Parameter Start Sequences ... -
(2)Getting Start With the Oracle Server
2010-07-07 11:24 799Interactive Installation$ ./r ... -
《Oracle视频教程》
2010-07-07 11:23 22431. Oracle Architectural Compone ... -
Oracle EXP/IMP命令详解
2010-07-07 10:01 1076EXP命令 格式: EXP KEYWORD=value ... -
Oracle EXP Direct
2010-07-07 10:00 1238Oracle提供2种模式导出表数据,传统模式CONVENTIO ... -
EXPDP和IMPDP使用说明
2010-07-07 09:53 1049EXPDP命令行选项 1. ATTACHexpd ... -
Oracle GoldenGate备份软件
2010-07-05 13:46 2564转载:http://edu.codepub.com/2010/ ...
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