linux db2 安装
1、解压缩安装包
#gunzip v9.7_linuxia32_server.tar.gz
#tar -xvf v9.7_linuxia32_server.tar
2、进入解压后的文件目录，执行安装：（我们选择手动安装）
注意：DB2_install为手动安装 db2_setup为图形安装
#./Db2_install-------no-----aese
3、创建DB2运行所需的组和用户：
#groupadd -g 901 db2grp
#groupadd -g 902 db2fgrp
#groupadd -g 903 db2agrp
#useradd -g db2grp -u 801 -d /home/db2inst1-m -s /bin/bash db2inst1 --管理当前实例
#useradd -g db2fgrp -u 802 -d /home/db2fenc-m -s /bin/bash db2fenc
#useradd -g db2agrp -u 803 -d /home/db2das-m -s /bin/bash db2das --管理所有实例
4、设置密码：
passwd db2inst1
passwd db2fenc
passwd db2das
5、创建实例
#cd /opt/ibm/db2/V9.7/instance
#./dascrt -u db2das
#./db2icrt -u db2inst1 db2inst1
注意：DBI1922N The host name is not valid.报无法解析错误，在/etc/hosts文件中添加解析参数即可
注释：
Dascrt：创建的是DB2 adminstration server，每台服务器只有一个这种server，为进行DB2管理（比如运行控制中心）所必须，同时指定其管理用户是db2das。
db2icrt：创建的是实例，其名字一般和管理用户名一样，这里均为db2inst1。
6、启动DB2
# su - db2das
$ db2admin start ----启动DB2管理服务器
SQL4409W The DB2 Administration Server is already active.
$su - db2inst1
$ db2start ----启动数据库实例
05/07/2012 01:30:04 0 0 SQL1063N DB2START processing was successful.
SQL1063N DB2START processing was successful.
7、检查DB2是否起来，状态如下：
[db2inst1@jetsen ~]$ ps -ef|grep db2
db2das 10828 1 0 01:23 ? 00:00:00 /home/db2das/das/adm/db2dasrrm
root 11345 1 0 01:23 ? 00:00:00 /opt/ibm/db2/V9.7/bin/db2fmcd
db2das 11354 1 0 01:23 ? 00:00:00/opt/ibm/db2/V9.7/das/bin/db2fmd -i db2das -m/opt/ibm/db2/V9.7/das/lib/libdb2dasgcf.so.1
root 17267 2768 0 01:29 pts/1 00:00:00 su - db2das
db2das 17268 17267 0 01:29 pts/1 00:00:00 -bash
root 17329 17268 0 01:29 pts/1 00:00:00 su - db2inst1
db2inst1 17332 17329 0 01:29 pts/1 00:00:00 -bash
root 17446 1 1 01:29 pts/1 00:00:01 db2wdog 0
db2inst1 17448 17446 1 01:29 pts/1 00:00:01 db2sysc 0
root 17449 17448 0 01:29 pts/1 00:00:00 db2ckpwd 0
root 17450 17448 0 01:29 pts/1 00:00:00 db2ckpwd 0
root 17451 17448 0 01:29 pts/1 00:00:00 db2ckpwd 0
db2inst1 17455 17448 1 01:30 pts/1 00:00:01 db2vend (PD Vendor Process -1)
db2inst1 17462 17446 0 01:30 pts/1 00:00:01 db2acd 0,0,0,0,1,0,0,0000,1,0,8a67a4,14,1e014,2,0,1,11fd0,0x125f0000,0x125f0000,1600000,588003,2,b5800b
db2inst1 17494 17332 0 01:32 pts/1 00:00:00 ps -ef
db2inst1 17495 17332 0 01:32 pts/1 00:00:00 grep db2
[db2inst1@jetsen ~]$
8、配置DB2自动启动，用root用户登录
#cd /opt/ibm/db2/V9.7/instance/
# ./db2iauto -on db2inst1
9、配置网络
#su - db2inst1
$db2 update dbm cfg using SVCENAME50000 ----改变DB2的远程访问端口，默认是5000
$db2set DB2COMM=TCPIP ----修改DB2的连接方式为TCPIP，
注意：也可以通过JDBC,ODBC等方式来访问DB2数据库
10、实例的启动和关闭
#su - db2inst1
$db2 force applications all ----关闭所有和DB2相关的应用程序
$db2stop ----关闭数据库实例
$db2start ----启动数据库实例
11、创建数据库
#su - db2inst1
$db2 create database test ----创建数据库实例
DB20000I The CREATE DATABASE command completed successfully.
12、连接到我们刚才创建的数据库
#su - db2inst1
$db2
db2 => Connect to test user db2inst1
Enter current password for db2inst1:
Database Connection Information
Database server = DB2/LINUX 9.7.5
SQLauthorization ID = DB2INST1
Local database alias = TEST
db2 =>
附录：
1、创建演示数据库
#su - db2inst1
$ $cd /opt/ibm/db2/V9.7/bin
$ ./db2sampl
Creating database "SAMPLE"...
Connecting to database "SAMPLE"...
Creating tables and data in schema "DB2INST1"...
Creating tables with XML columns and XML data in schema"DB2INST1"...
'db2sampl' processing complete.
2、访问刚创建的数据库
$ db2
db2 => connect to sample
Database Connection Information
Database server = DB2/LINUX 9.7.5
SQLauthorization ID = DB2INST1
Local database alias = SAMPLE
db2 =>
3、常用操作命令
db2 =>connect to sample ---连接到sample数据库
db2 =>list tables ---查看库下面的所有表
db2 => select * from staff wheredept=10 ---查询某张表dept等于10的所有记录
db2 => quit ---退出db2
DB20000I The QUIT command completed successfully.
$ db2ilist; ---查看实例列表
db2inst1
$ db2 get instance ---查看当前所运行的实例
Thecurrent database manager instance is: db2inst1
