先deactivate后再start standby再primary
报错不能启动hadr standby的时候,先restore,但是别rollback,直接start hadr as standby
先把hadr起来后再推icm
1、先把所有的库的hadr stop了
2、把primary的库离线备份
3、在副节点db2stop force ,再start(可以保证是处于deactivate(其实db2 DEACTIVATE DATABASE cinder就行)的状态,然后再restore)
4、db2 get db cfg for ceilodb2 | grep "Path to log files" 删除得到的文件夹里面所有文件比如得到node/ 就rm -rf node/*
5、在副节点restore(千万别rollback)
6、在副节点start hadr as standby
7、db2 ACTIVATE DATABASE cinder
8、在主节点start hadr as primary
db2默认需要切换到db2inst1这个默认用户才能执行操作
[root@localhost instance]# su - db2inst1
[db2inst1@localhost ~]$ db2start
[db2inst1@localhost ~]$ db2 force application all
[db2inst1@localhost ~]$ db2stop
[db2inst1@localhost DB2]$ db2stop force
显示所有的实例
[db2inst1@localhost ~]$ db2ilist
显示当前的实例
[db2inst1@localhost ~]$ db2 get instance
删除一个实例(注:需切换到root用户权限下)
[root@localhost ~]# cd /opt/ibm/db2/V9.7/instance
[root@localhost instance]# pwd
/opt/ibm/db2/V9.7/instance
[root@localhost instance]# ./db2idrop db2inst1
DBI1070I Program db2idrop completed successfully.
列出当前实例中有哪些数据库
[root@localhost instance]# su - db2inst1
[db2inst1@localhost ~]$ db2 list db directory
创建数据库
[root@localhost instance]# su - db2inst1
[db2inst1@localhost ~]$ db2 create database test
连接数据库
[db2inst1@localhost ~]$ db2 connect to test
注:用密码情况下格式[db2inst1@localhost ~]$ db2 connect to test user username using password
db2 connect to <database> user <username> using <password>
列出当前实例中所有激活的数据库
[root@localhost ~]# su - db2inst1
[db2inst1@localhost ~]$ db2 list active databases
查看表的空间
[db2inst1@localhost ~]$ db2 list tablespaces [ show detail ]
列出数据库中所有用户表
[db2inst1@localhost ~]$ db2 connect to test
[db2inst1@localhost ~]$ db2 list tables
创建表
[db2inst1@localhost ~]$ db2 "create table student (id int,fname varchar(30),age int)"
向表student中添加数据信息
[db2inst1@localhost ~]$ db2 "insert into student values (1,'Tom',22)"
显示表student所有的信息
[db2inst1@localhost ~]$ db2 "select * from student"
更新数据
[db2inst1@localhost ~]$ db2 "update student set age=22 where fname='Sunrier'"
查看表student结构
[db2inst1@localhost ~]$ db2 describe table student
[db2inst1@localhost ~]$ db2 "describe select * from student"
修改一个表的字段类型(如表people中的fname字段把varchar(30)改为varchar(28))
[db2inst1@localhost ~]$ db2 describe table people
[db2inst1@localhost ~]$ db2 "alter table people alter column fname set data type varchar(28)"
向一个表添加字段(如向表people中添加备注信息字段notes;向表people中添加分数字段score)
格式:db2 "alter table <tablename> add <columnname> <datatype>"
[db2inst1@localhost ~]$ db2 "alter table people add notes varchar(100)"
显示当前数据库连接有哪些应用程序
[root@localhost ~]# su - db2inst1
[db2inst1@localhost DB2]$ db2 list application
导出表中的数据
以DEL格式导出
db2 "export to teacher.txt of del select * from teacher"
db2 "export to teacher_bak.txt of del modified by coldel| select * from teacher"
[db2inst1@localhost ~]$ ls
db2inst1 sqllib Sunrier teacher.sql TEST.0.db2inst1.NODE0000.CATN0000.20120817103306.001
[db2inst1@localhost ~]$ db2 "export to teacher.txt of del select * from teacher"
SQL3104N The Export utility is beginning to export data to file
"teacher.txt".
备份数据库(如防止表误操作)
格式:db2 backup db <database name> [ to <dir name> ]
[db2inst1@localhost ~]$ db2 backup db test
SQL3105N The Export utility has finished exporting "2" rows.
恢复数据库(如将一个表删除后,通过删除前的备份文件恢复)
格式:db2 restore db <database name> [ from <dir name> ]
database name:表示恢复的数据库名
from <dir name>:表示为从哪个目录路径下恢复,为可选项,默认在当前目录下
[db2inst1@localhost ~]$ db2 connect to test
注:如果想把恢复的数据库更改为新的数据库名,则格式如下
db2 restore db <database name> [ from <dir name> into <new database name> ]
例:db2 restore db test from /home/db2inst1/Sunrier into testdb
或者db2 restore db test from "/home/db2inst1/Sunrier" into testdb
.查看test数据库备份的历史记录
格式:db2 list history backup all for <database name>
[db2inst1@localhost ~]$ db2 list history backup all for test
查看错误码信息
[db2inst1@localhost ~]$ db2 ? 22003
SQLSTATE 22003: A numeric value is out of range.
======================================back up ========================================
db2 list db directory
1、离线全备份
db2 force application all
1)、首先确保没有用户使用DB2:
db2 list applications for db sample
2)、停掉数据库并重新启动,以便断掉所有连接:
db2stop force
db2start
3)、执行备份命令:(使用TSM作为备份的介质)
db2 backup db sample use tsm
备份成功,将会返回一个时间戳。
4)、检查备份成功:
db2 list history backup all for sample 可以看到多了这个备份的纪录。
db2adutl query 命令也可以看到返回值。
5、恢复数据库
db2 restore db GLANCE from /var/wenbin/backup
当恢复后需要连接数据库的时候报错
Last login: Wed Jan 30 02:23:23 2013
[root@localhost ~]# su - db2inst1
[db2inst1@localhost ~]$ db2 connect to sample
SQL1117N A connection to or activation of database "SAMPLE" cannot be made
because of ROLL-FORWARD PENDING. SQLSTATE=57019
####这个提示是说需要前滚期间的日志才能激活数据库
执行下面的语句:
db2 rollforward db GLANCE to end of logs and stop
db2start
2.停止数据库
db2stop
3.连接数据库
db2 connect to o_yd user db2 using pwd
4.读数据库管理程序配置
db2 get dbm cfg
5.写数据库管理程序配置
db2 update dbm cfg using 参数名 参数值
6.读数据库的配置
db2 connect to o_yd user db2 using pwd
db2 get db cfg for o_yd
7.写数据库的配置
db2 connect to o_yd user db2 using pwd
db2 update db cfg for o_yd using 参数名 参数值
8.关闭所有应用连接
db2 force application all
db2 force application ID1,ID2,,,Idn MODE ASYNC
(db2 list application for db o_yd show detail)
9.备份数据库
db2 force application all
db2 backup db o_yd to d:
(db2 initialize tape on \. ape0)
(db2 rewind tape on \. ape0)
db2 backup db o_yd to \. ape0
10.恢复数据库
db2 restore db o_yd from d: to d:
db2 restore db o_yd from \. ape0 to d:
11.绑定存储过程
db2 connect to o_yd user db2 using pwd
db2 bind c:dfplus.bnd
拷贝存储过程到服务器上的C:sqllibfunction目录中
12.整理表
db2 connect to o_yd user db2 using pwd
db2 reorg table ydd
db2 runstats on table ydd with distribution and indexes all
13.导出表数据
db2 export to c:dftz.txt of del select * from dftz
db2 export to c:dftz.ixf of ixf select * from dftz
14.导入表数据
import from c:123.txt of del insert into ylbx.czyxx
db2 import to c:dftz.txt of del commitcount 5000 messages c:dftz.msg insert into dftz
import from vipmobiles.txt of del method p(1) insert into tgzvipmobiles(mobileno)
db2 import to c:dftz.ixf of ixf commitcount 5000 insert into dftz
db2 import to c:dftz.ixf of ixf commitcount 5000 insert_update into dftz
db2 import to c:dftz.ixf of ixf commitcount 5000 replace into dftz
db2 import to c:dftz.ixf of ixf commitcount 5000 create into dftz (仅IXF)
db2 import to c:dftz.ixf of ixf commitcount 5000 replace_create into dftz (仅IXF)
db2 –tf 批处理文件名
(文件中每一条命令用 ;结束)
16.自动生成批处理文件
建文本文件:temp.sql
select ‘runstats on table DB2.’ || tabname || ‘ with distribution and detailed indexes all;’ from syscat.tables where tabschema=’DB2′ and type=’T';
db2 –tf temp.sql>runstats.sql
17.自动生成建表(视图)语句
在服务器上:C:sqllibmisc目录中
db2 connect to o_yd user db2 using pwd
db2look –d o_yd –u db2 –e –p –c c:o_yd.txt
18.其他命令
grant dbadm on database to user bb
20 db2look –d ylbx –u db2admin –w –asd –a –e –o a.txt21. 显示当前用户所有表
22.列出所有的系统表
23.查看表结构
db2 describe select * from user.tab