DB2SQL命令大全

DB2/SQL命令大全
連接數據庫：

connect to [數據庫名] user [操作用戶名] using [密碼]

創建緩衝池(8K)：

create bufferpool ibmdefault8k IMMEDIATE SIZE 5000 PAGESIZE 8 K ;
創建緩衝池(16K)(OA_DIVERTASKRECORD)：
create bufferpool ibmdefault16k IMMEDIATE SIZE 5000 PAGESIZE 16 K ;
創建緩衝池(32K)(OA_TASK)：
create bufferpool ibmdefault32k IMMEDIATE SIZE 5000 PAGESIZE 32 K ;

創建表空間：

CREATE TABLESPACE exoatbs IN DATABASE PARTITION GROUP IBMDEFAULTGROUP PAGESIZE 8K MANAGED BY SYSTEM USING ('/home/exoa2/exoacontainer') EXTENTSIZE 32 PREFETCHSIZE 16 BUFFERPOOL IBMDEFAULT8K OVERHEAD 24.10 TRANSFERRATE 0.90 DROPPED TABLE RECOVERY OFF;

CREATE TABLESPACE exoatbs16k IN DATABASE PARTITION GROUP IBMDEFAULTGROUP PAGESIZE 16K MANAGED BY SYSTEM USING ('/home/exoa2/exoacontainer16k'   ) EXTENTSIZE 32 PREFETCHSIZE 16 BUFFERPOOL IBMDEFAULT16K OVERHEAD 24.1 TRANSFERRATE 0.90 DROPPED TABLE RECOVERY OFF;

CREATE TABLESPACE exoatbs32k IN DATABASE PARTITION GROUP IBMDEFAULTGROUP PAGESIZE 32K MANAGED BY SYSTEM USING ('/home/exoa2/exoacontainer32k'   ) EXTENTSIZE 32 PREFETCHSIZE 16 BUFFERPOOL IBMDEFAULT32K OVERHEAD 24.1 TRANSFERRATE 0.90 DROPPED TABLE RECOVERY OFF;

GRANT USE OF TABLESPACE exoatbs TO PUBLIC;
GRANT USE OF TABLESPACE exoatbs16k TO PUBLIC;
GRANT USE OF TABLESPACE exoatbs32k TO PUBLIC;

創建系統表空間：

CREATE TEMPORARY TABLESPACE exoasystmp IN DATABASE PARTITION GROUP IBMTEMPGROUP PAGESIZE 8K MANAGED BY SYSTEM USING ('/home/exoa2/exoasystmp'   ) EXTENTSIZE 32 PREFETCHSIZE 16 BUFFERPOOL IBMDEFAULT8K OVERHEAD 24.10 TRANSFERRATE 0.90 DROPPED TABLE RECOVERY OFF;

CREATE TEMPORARY TABLESPACE exoasystmp16k IN DATABASE PARTITION GROUP IBMTEMPGROUP PAGESIZE 16K MANAGED BY SYSTEM USING ('/home/exoa2/exoasystmp16k' ) EXTENTSIZE 32 PREFETCHSIZE 16 BUFFERPOOL IBMDEFAULT16K OVERHEAD 24.10 TRANSFERRATE 0.90 DROPPED TABLE RECOVERY OFF;

CREATE TEMPORARY TABLESPACE exoasystmp32k IN DATABASE PARTITION GROUP IBMTEMPGROUP PAGESIZE 32K MANAGED BY SYSTEM USING ('/home/exoa2/exoasystmp32k') EXTENTSIZE 32 PREFETCHSIZE 16 BUFFERPOOL IBMDEFAULT32K OVERHEAD 24.10 TRANSFERRATE 0.90 DROPPED TABLE RECOVERY OFF;

1. 啓動實例(db2inst1):

db2start

2. 停止實例(db2inst1):

db2stop

3. 列出所有實例(db2inst1)

db2ilist

5.列出當前實例:

db2 get instance

4. 察看示例配置文件:

db2 get dbm cfg|more

5. 更新數據庫管理器參數信息:

db2 update dbm cfg using para_name para_value

6. 創建數據庫:

db2 create db test

7. 察看數據庫配置參數信息

db2 get db cfg for test|more

8. 更新數據庫參數配置信息

db2 update db cfg for test using para_name para_value

10.刪除數據庫:

db2 drop db test

11.連接數據庫

db2 connect to test

12.列出所有表空間的詳細信息。

db2 list tablespaces show detail

13.查詢數據:

db2 select * from tb1

14.刪除數據:

db2 delete from tb1 where id=1

15.創建索引:

db2 create index idx1 on tb1(id);

16.創建視圖:

db2 create view view1 as select id from tb1

17.查詢視圖:

db2 select * from view1

18.節點編目

db2 catalog tcp node node_name remote server_ip server server_port

19.察看端口號

db2 get dbm cfg|grep SVCENAME

20.測試節點的附接

db2 attach to node_name

21.察看本地節點

db2 list node direcotry

22.節點反編目

db2 uncatalog node node_name

23.數據庫編目

db2 catalog db db_name as db_alias at node node_name

24.察看數據庫的編目

db2 list db directory

25.連接數據庫

db2 connect to db_alias user user_name using user_password

26.數據庫反編目

db2 uncatalog db db_alias

27.導出數據

db2 export to myfile of ixf messages msg select * from tb1

28.導入數據

db2 import from myfile of ixf messages msg replace into tb1

29.導出數據庫的所有表數據

db2move test export

30.生成數據庫的定義

db2look -d db_alias -a -e -m -l -x -f -o db2look.sql

31.創建數據庫

db2 create db test1

32.生成定義

db2 -tvf db2look.sql

33.導入數據庫所有的數據

db2move db_alias import

34.重組檢查

db2 reorgchk

35.重組表tb1

db2 reorg table tb1

36.更新統計信息

db2 runstats on table tb1

37.備份數據庫test

db2 backup db test

38.恢復數據庫test

db2 restore db test

399/.列出容器的信息

db2 list tablespace containers for tbs_id show detail

40.創建表:

db2 ceate table tb1(id integer not null,name char(10))

41.列出所有表

db2 list tables

42.插入數據:

db2 insert into tb1 values(1,’sam’);

db2 insert into tb2 values(2,’smitty’);

. 建立數據庫DB2_GCB

CREATE DATABASE DB2_GCB ON G: ALIAS DB2_GCB

USING CODESET GBK TERRITORY CN COLLATE USING SYSTEM DFT_EXTENT_SZ 32

2. 連接數據庫

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. 重新連接

connect reset

18. 中斷數據庫連接

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. 顯示當前用戶所有表

list tables

24. 列出所有的系統表

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. 停止實例

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. 創建 SAMPLE 數據庫

db2sampl

db2sampl F:(指定安裝盤)

43. 使用操作系統命令

! 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，還需要更新服務器上的 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. 檢索具有特權的所有授權名

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','沖帳功能'),

('gl05','對帳功能'),

('gl06','計費功能'),

('gl07','綜合統計')

備份數據庫：
CONNECT TO EXOA;
QUIESCE DATABASE IMMEDIATE FORCE CONNECTIONS;
CONNECT RESET;
BACKUP DATABASE EXOA TO "/home/exoa2/db2bak/" WITH 2 BUFFERS BUFFER 1024 PARALLELISM 1 WITHOUT PROMPTING;
CONNECT TO EXOA;
UNQUIESCE DATABASE;
CONNECT RESET;

以下是小弟在使用db2move中的一些經驗，希望對大家有所幫助。

db2   connect   to YOURDB  
連接數據庫

db2look -d YOURDB -a -e -x -o creatab.sql
導出建庫表的SQL

db2move   YOURDB export
用db2move將數據備份出來

vi   creatab.sql
如要導入的數據庫名與原數據庫不同，要修改creatab.sql中CONNECT 項
如相同則不用更改

db2move NEWDB load
將數據導入新庫中

在導入中可能因爲種種原因發生中斷，會使數據庫暫掛
db2   list tablespaces   show   detail
如：
    詳細說明：
  裝入暫掛
總頁數                 = 1652
可用頁數                 = 1652
已用頁數                 = 1652
空閒頁數                 = 不適用
高水位標記（頁）           = 不適用
頁大小（字節）             = 4096
盤區大小（頁）             = 32
預讀取大小（頁）           = 32
容器數                   = 1
狀態更改表空間標識             = 2
狀態更改對象標識               = 59

db2 select tabname,tableid from syscat.tables where tableid=59
查看是哪張表掛起

表名知道後到db2move.lst(在db2move YOURDB export的目錄中)中找到相應的.ixf文件
db2 load from tab11.ixf of ixf terminate into db2admin.xxxxxxxxx
tab11.ixf對應的是xxxxxxxxx表

數據庫會恢復正常，可再用db2 list tablespaces show detail查看

 

30.不能通過GRANT授權的權限有哪種?

SYSAM

SYSCTRL

SYSMAINT

要更該述權限必須修改數據庫管理器配置參數

31.表的類型有哪些?

永久表(基表)

臨時表(說明表)

臨時表(派生表)

32.如何知道一個用戶有多少表?

SELECT*FROMSYSIBM.SYSTABLESWHERECREATOR='USER'

33.如何知道用戶下的函數?

select*fromIWH.USERFUNCTION

select*fromsysibm.SYSFUNCTIONS

34.如何知道用戶下的VIEW數?

select*fromsysibm.sysviewsWHERECREATOR='USER'

35.如何知道當前DB2的版本?

select*fromsysibm.sysvERSIONS

36.如何知道用戶下的TRIGGER數?

select*fromsysibm.SYSTRIGGERSWHERESCHEMA='USER'

37.如何知道TABLESPACE的狀況?

select*fromsysibm.SYSTABLESPACES

38.如何知道SEQUENCE的狀況?

select*fromsysibm.SYSSEQUENCES

39.如何知道SCHEMA的狀況?

select*fromsysibm.SYSSCHEMATA

40.如何知道INDEX的狀況?

select*fromsysibm.SYSINDEXES

41.如何知道表的字段的狀況?

select*fromsysibm.SYSCOLUMNSWHERETBNAME='AAAA'

42.如何知道DB2的數據類型?

select*fromsysibm.SYSDATATYPES

43.如何知道BUFFERPOOLS狀況?

select*fromsysibm.SYSBUFFERPOOLS

44.DB2表的字段的修改限制?

只能修改VARCHAR2類型的並且只能增加不能減少.

45.如何查看錶的結構?

DESCRIBLETABLETABLE_NAME

OR

DESCRIBLESELECT*FROMSCHEMA.TABLE_NAME