DB21

 1. 創建數據庫DB2_GCB

 

CREATE DATABASE DB2_GCB ON G: ALIAS DB2_GCB 

USING CODESET GBK TERRITORY CN COLLATE USING SYSTEM DFT_EXTENT_SZ 32

 

2. 鏈接數據庫

 

connect to sample1 user db2admin using 8301206

 

3. 創建別名

 

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. 創建表

 

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. 創建視圖

 

create view V_zjt_tables as select tabschema,tabname from zjt_tables;

 

7. 創建觸發器

 

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. 創建惟一性索引

 

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. 從新鏈接

 

connect reset

 

18. 中斷數據庫鏈接

 

disconnect db2_gcb

 

19. view application

 

LIST APPLICATION;

 

20. kill application

 

FORCE APPLICATION(0); 

db2 force applications all (強迫全部應用程序從數據庫斷開)

 

21. lock table

 

lock table test in exclusive mode

 

22. 共享

 

lock table test in share mode

 

23. 顯示當前用戶全部表

 

list tables

 

24. 列出全部的系統表

 

list tables for system

 

25. 顯示當前活動數據庫

 

list active databases

 

26. 查看命令選項

 

list command options

 

27. 系統數據庫目錄

 

LIST DATABASE DIRECTORY

 

28. 表空間

 

list tablespaces

 

29. 表空間容器

 

LIST TABLESPACE CONTAINERS FOR 

Example: LIST TABLESPACE CONTAINERS FOR 1

 

30. 顯示用戶數據庫的存取權限

 

GET AUTHORIZATIONS

 

31. 啓動實例

DB2START

 

32. 中止實例

 

db2stop

 

33. 表或視圖特權

 

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

grant all on tables to user WITH GRANT OPTION

 

34. 程序包特權

 

GRANT EXECUTE 

ON PACKAGE PACKAGE-name 

TO PUBLIC

 

35. 模式特權

 

GRANT CREATEIN ON SCHEMA SCHEMA-name TO USER

 

36. 數據庫特權

 

grant connect,createtab,dbadm on database to user

 

37. 索引特權

 

grant control on index index-name to user

 

38. 信息幫助 (? XXXnnnnn )

 

例:? SQL30081

 

39. SQL 幫助(說明 SQL 語句的語法)

 

help statement 

例如，help SELECT

 

40. SQLSTATE 幫助(說明 SQL 的狀態和類別代碼)

 

? sqlstate 或 ? class-code

 

41. 更改與"管理服務器"相關的口令

 

db2admin setid username password

 

42. 建立 SAMPLE 數據庫

 

db2sampl 

db2sampl F:(指定安裝盤)

 

43. 使用操做系統命令

 

! dir

 

44. 轉換數據類型 (cast)

 

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

FROM EMP_RESUME 

WHERE RESUME_FORMAT = 'ascii' 

45. UDF

 

要運行 DB2 Java 存儲過程或 UDF，還須要更新服務器上的 DB2 數據庫管理程序配置，以包括在該機器上安裝 JDK 的路徑

 

db2 update dbm cfg using JDK11_PATH d:sqllibjavajdk 

TERMINATE 

update dbm cfg using SPM_NAME sample

 

46. 檢查 DB2 數據庫管理程序配置

 

db2 get dbm cfg

 

47. 檢索具備特權的全部受權名

 

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 

ORDER BY GRANTEE, GRANTEETYPE, 3

 

create table yhdab 

(id varchar(10), 

password varchar(10), 

ywlx varchar(10), 

kh varchar(10)); 

create table ywlbb 

(ywlbbh varchar(8), 

ywmc varchar(60))

 

48. 修改表結構

 

alter table yhdab ALTER kh SET DATA TYPE varchar(13); 

alter table yhdab ALTER ID SET DATA TYPE varchar(13); 

alter table lst_bsi alter bsi_money set data type int; 

insert into yhdab values 

('20000300001','123456','user01','20000300001'), 

('20000300002','123456','user02','20000300002');

 

49. 業務類型說明

 

insert into ywlbb values 

('user01','業務申請'), 

('user02','業務撤消'), 

('user03','費用查詢'), 

('user04','費用自繳'), 

('user05','費用預存'), 

('user06','密碼修改'), 

('user07','發票打印'), 

('gl01','改用戶基本信息'), 

('gl02','更改支付信息'), 

('gl03','日統計功能'), 

('gl04','衝賬功能'), 

('gl05','對賬功能'), 

('gl06','計費功能'), 

('gl07','綜合統計')

 

(責任編輯：銘銘 mingming_ky@126.com TEL：（010）68476606)