DB2常用命令列表(1)

1. 建立資料庫DB2_GCB

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

2. 串連資料庫

connect to sample1 user db2admin using 8301206

3. 建立別名

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. 插入記錄

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

6. 建立視圖

create view V_zjt_tables as select tabschema,tabname from zjt_tables;

7. 建立觸發器

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. 查看錶

select tabname from tables
where tabname='ZJT_TABLES';

10. 查看列

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

11. 查看錶結構

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

12. 查看錶的索引

db2 describe indexes for table user1.department

13. 查看視圖

select viewname from views
where viewname='V_ZJT_TABLES';

14. 查看索引

select indname from indexes
where indname='I_ZTABLES_TABNAME';

15. 查看存貯過程

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

16. 類型轉換(cast)

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

17. 重新串連

connect reset

18. 中斷資料庫連接

disconnect db2_gcb

19. view application

LIST APPLICATION;

20. kill application

FORCE APPLICATION(0);
db2 force applications all (強迫所有應用程式從資料庫斷開)

21. lock table

lock table test in exclusive mode

22. 共用

lock table test in share mode

23. 顯示目前使用者所有表

list tables

24. 列出所有的系統資料表

list tables for system

25. 顯示當前活動資料庫

list active databases

26. 查看命令選項

list command options

27. 系統資料庫目錄

LIST DATABASE DIRECTORY

28. 資料表空間

list tablespaces

29. 資料表空間容器

LIST TABLESPACE CONTAINERS FOR
Example: LIST TABLESPACE CONTAINERS FOR 1

30. 顯示使用者資料庫的存取許可權

GET AUTHORIZATIONS