db2常用命令大全

时间:2009-07-13 01:21:44   来源:第二电脑网  作者:第二电脑网

  第二电脑网导读: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
  正文:

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

31. 启动实例

DB2START

32. 停止实例

db2stop

33. 表或视图特权

grant select,delete,insert,update on tables to user

grant all on tables to user WITH GRANT OPTION

34. 程序包特权

GRANT EXECUTE

ON PACKAGE PACKAGE-name

TO PUBLIC

35. 模式特权

GRANT CREATEIN ON SCHEMA SCHEMA-name TO USER

36. 数据库特权

grant connect,createtab,dbadm on database to user

37. 索引特权

grant control on index index-name to user

38. 信息帮助 (? XXXnnnnn )

例:? SQL30081

39. SQL 帮助(说明 SQL 语句的语法)
help statement

例如,help SELECT

40. SQLSTATE 帮助(说明 SQL 的状态和类别代码)

? sqlstate 或 ? class-code

41. 更改与"管理服务器"相关的口令

db2admin setid username password

42. 创建 SAMPLE 数据库

db2sampl

db2sampl F:(指定安装盘)

43. 使用操作系统命令

! dir

44. 转换数据类型 (cast)

SELECT EMPNO, CAST(RESUME AS VARCHAR(370))

FROM EMP_RESUME

WHERE RESUME_FORMAT = 'ascii'

45. UDF

要运行 DB2 Java 存储过程或 UDF,还需要更新服务器上的 DB2 数据库管理程序配置,以包括在该机器上安装 JDK 的路径

db2 update dbm cfg using JDK11_PATH d:sqllibjavajdk

TERMINATE

update dbm cfg using SPM_NAME sample

46. 检查 DB2 数据库管理程序配置

db2 get dbm cfg

47. 检索具有特权的所有授权名

SELECT DISTINCT GRANTEE, GRANTEETYPE, 'DATABASE' FROM SYSCAT.DBAUTH

UNION

SELECT DISTINCT GRANTEE, GRANTEETYPE, 'TABLE ' FROM SYSCAT.TABAUTH

UNION

SELECT DISTINCT GRANTEE, GRANTEETYPE, 'PACKAGE ' FROM SYSCAT.PACKAGEAUTH

UNION

SELECT DISTINCT GRANTEE, GRANTEETYPE, 'INDEX ' FROM SYSCAT.INDEXAUTH

UNION

SELECT DISTINCT GRANTEE, GRANTEETYPE, 'COLUMN ' FROM SYSCAT.COLAUTH

UNION

SELECT DISTINCT GRANTEE, GRANTEETYPE, 'SCHEMA ' FROM SYSCAT.SCHEMAAUTH

UNION

SELECT DISTINCT GRANTEE, GRANTEETYPE, 'SERVER ' FROM SYSCAT.PASSTHRUAUTH
来源:http://www.002pc.com/master/College/Database/DB2/10033.html

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