DB2常用命令列表(一)

1. 建立数据库DB2_GCB

CREATE DATABASE DB2_GCB ON G: ALIAS DB2_GCB 
USING CODESET GBK TERRITORY CN COLLATE USING SYSTEM DFT_EXTENT_SZ 32 

 

2. 连接数据库

connect to sample1 user db2admin using 8301206 

 3. 建立别名

create alias db2admin.tables for sysstat.tables; 
CREATE ALIAS DB2ADMIN.VIEWS FOR SYSCAT.VIEWS 
create alias db2admin.columns for syscat.columns; 
create alias guest.columns for syscat.columns;

  

4. 建立表

create table zjt_tables as 
(select * from tables) definition only; 
create table zjt_views as 
(select * from views) definition only;

  

5. 插入记录

insert into zjt_tables select * from tables; 
insert into zjt_views select * from views;

  

6. 建立视图

create view V_zjt_tables as select tabschema,tabname from zjt_tables;

  

7. 建立触发器

CREATE TRIGGER zjt_tables_del 
AFTER DELETE ON zjt_tables 
REFERENCING OLD AS O 
FOR EACH ROW MODE DB2SQL 
Insert into zjt_tables1 values(substr(o.tabschema,1,8),substr(o.tabname,1,10)) 

 

8. 建立唯一性索引

CREATE UNIQUE INDEX I_ztables_tabname 
[size=3]ON zjt_tables(tabname); 

 
9. 查看表

select tabname from tables 
where tabname='ZJT_TABLES';

  

10. 查看列

select SUBSTR(COLNAME,1,20) as 列名,TYPENAME as 类型,LENGTH as 长度 
from columns 
where tabname='ZJT_TABLES'; 

 

11. 查看表结构

db2 describe table user1.department 
db2 describe select * from user.tables

  

12. 查看表的索引

db2 describe indexes for table user1.department 

 

13. 查看视图

select viewname from views 
where viewname='V_ZJT_TABLES';

  

14. 查看索引

select indname from indexes 
where indname='I_ZTABLES_TABNAME'; 

 

15. 查看存贮过程

SELECT SUBSTR(PROCSCHEMA,1,15),SUBSTR(PROCNAME,1,15) 
FROM SYSCAT.PROCEDURES;

  

16. 类型转换(cast)

ip datatype:varchar 
select cast(ip as integer)+50 from log_comm_failed

  

17. 重新连接

connect reset

  

18. 中断数据库连接

disconnect db2_gcb

  

19. view application

LIST APPLICATION;

  

20. kill application

FORCE APPLICATION(0); 
db2 force applications all (强迫所有应用程序从数据库断开) 

 

21. lock table

lock table test in exclusive mode 

 

22. 共享

lock table test in share mode 

 

23. 显示当前用户所有表

list tables

  

24. 列出所有的系统表

list tables for system

  

25. 显示当前活动数据库

list active databases

  

26. 查看命令选项

list command options

  

27. 系统数据库目录

LIST DATABASE DIRECTORY 

 

28. 表空间

list tablespaces 

 

29. 表空间容器

LIST TABLESPACE CONTAINERS FOR 
Example: LIST TABLESPACE CONTAINERS FOR 1 

 

30. 显示用户数据库的存取权限

GET AUTHORIZATIONS