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DB2的安装与初次使用

  • 分类:数据存储
  • 本文标签: DB2
  • 发布时间:2017-01-01 16:37:11
  • 查看数: 34

一 DB2安装过程
1 新建3个组,分别为管理组件das组,实例inst组,守护def组。随后在三个组中分别加入对应的用户:das,inst,和def。注意的是inst用户>同时属于das组。为各个用户建立目录和密码。
2 运行DB2SETUP后未出现向导,出现提示后退出的解决。
  请不要执行DB2SETUP,请执行DB2_install,然后输入安装的组件名字进行安装。
3  创建实例
   在/opt/IBM/db2/v8.1/instane/下分别执行
   ./dascrt -u dasuser
   ./dasicrt -w 32 -u defuser instuser    #如未指定位宽,则会报错说配置文件不能正常初始化。

   在/cfg/下执行db2ln
4 设置
  切换到instuser用户下
  $db2set -g DB2COMM = TCPIP              #在全局或使用-i指定某个实例的连接属性

5 启动数据库
   $db2start                              #在启动前请修改系统时间到2005年以前,否则会出现数据库license过期的提示
建立样表
   $db2sampl
测试
   $db2 "select * from stuff"

二 DB2的初次使用

$db2

Command Line Processor for DB2 SDK 8.2.3

You can issue database manager commands and SQL statements from the command
prompt. For example:
    db2 => connect to sample
    db2 => bind sample.bnd

For general help, type: ?.
For command help, type: ? command, where command can be
the first few keywords of a database manager command. For example:
 ? CATALOG DATABASE for help on the CATALOG DATABASE command
 ? CATALOG          for help on all of the CATALOG commands.

To exit db2 interactive mode, type QUIT at the command prompt. Outside
interactive mode, all commands must be prefixed with 'db2'.
To list the current command option settings, type LIST COMMAND OPTIONS.

For more detailed help, refer to the Online Reference Manual.

db2 => db2start
DB20000I  The DB2START command completed successfully.
db2 => create db mydb
DB20000I  The CREATE DATABASE command completed successfully.
db2 => connect to mydb user admin
Enter current password for admin:

   Database Connection Information

 Database server        = DB2/NT 8.2.3
 SQL authorization ID   = ADMIN
 Local database alias   = MYDB

db2 => create schema myschema
DB20000I  The SQL command completed successfully.
db2 => create table myschema.mytable(id int, name varchar(30))
DB20000I  The SQL command completed successfully.
db2 => insert into myschema.mytable values(101,'Bruce Lu')
DB20000I  The SQL command completed successfully.
db2 => select * from myschema.mytable

ID          NAME
----------- ------------------------------
        101 Bruce Lu

  1 record(s) selected.

db2 => drop table myschema.mytable
DB20000I  The SQL command completed successfully.
db2 => drop schema myschema restrict
DB20000I  The SQL command completed successfully.
db2 => connect reset
DB20000I  The SQL command completed successfully.
db2 => drop db mydb
DB20000I  The DROP DATABASE command completed successfully.
db2 => db2stop
DB20000I  The DB2STOP command completed successfully.
db2 => quit
DB20000I  The QUIT command completed successfully.

 

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