db2 命令

select * from syscat.bufferpools

alter bufferpool IBMDEFAULTBP immediate size 50000

db2 get snapshot for locks on dbname

恢复数据库

1：db2 attach to db2 user db2admin using db2admin

2：db2 restore db dlxdb user db2admin using db2admin from d:\aaa taken at 20101123170756 on "d:" into dlxdb

3:有事数据回复不了 提示 类似这样的信息

the database alias already exists in either the local

解决方法：http://publib.boulder.ibm.com/tividd/td/TSLA/SC32-1240-00/en_US/HTML/sl21tmst59.htm

list db directory

catalog db <missing_db> as <any_db>

list db directory

drop db <any_db>

索引相关

 reorgchk update statistics on table db2admin.scm_stockbilldtl

reorg table db2admin.scm_stockbilldtl

runstats on table db2admin.scm_stockbilldtl and indexes all

reorgchk update statistics on table db2admin.scm_stockbilldtl

select indname from syscat.indexes where tabname=‘customer‘

db2 9+

自动重组设置 UPDATE  DB CFG USING AUTO_REORG ON

http://www.ibm.com/developerworks/cn/data/library/techarticles/dm-0512niuxzh/

 

db2 "get db cfg for DBNAME",

db2 "get snapshot for database on DBNAME"