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  • db2 基本命令和变量

    db2icrt <instance name>
    db2idrop <instance name>
    其中i = instance 实例, 需root权限

    实例用户 或一般用户的命令来自哪里?
    如果没有设置的普通用户: 只用命令 db2ls == db2 list( /usr/local/bin/db2ls )

    vi .bashrc
    ...
    # The following three lines have been added by UDB DB2.
    if [ -f /home/db2inst1/sqllib/db2profile ]; then
        . /home/db2inst1/sqllib/db2profile
    fi
    ...

    环境变量: 操作系统级别的变量

    注册变量:
      1 Global-Level variable
      2 Instance-Level variable

    [i] DB2COMM=TCPIP
    [g] DB2FCMCOMM=TCPIP4
    [g] DB2SYSTEM=node22.km.hm
    [g] DB2ADMINSERVER=dasuser1

    Configuration parameters

    db2 get dbm cfg (instance)

    db2 get db cfg (database)

    System database directory 系统编目

    # db2 list db directory

    sqldbdir]$ cat /home/db2inst1/sqllib/sqldbdir/sqldbdir

    DB2 DIRECTORY
    
    ��
    NAV     NAV     0�/data/db2/db2inst1ib                              ��SQLDBD02 UTF-8O�USUTF-8O�� #"7�
    SAMPLE  SAMPLE  0�/data/db2/db2inst1ib                              )��SQLDBD020 UTF-8USUTF-8� $XBv8@v�ؒ$R�[DB2Q

    Local database directory

    # db2 list db directory on /data/db2

    sqldbdir]$ cat /data/db2/db2inst1/NODE0000/sqldbdir/sqldbdir

    DB2 DIRECTORY
    ��NAV     NAV     2SQL00001�/data/db2/db2inst1                              SQLDBD02 UTF-8O�USUTF-8O�� #"7�

    Node directory

    # db2 list node directory

    $ cat /home/db2inst1/sqllib/sqlnodir/sqlnodir

    NODE DIRECTORYKWINGMEILocal workstationdasusr1KWINGMEIUNODE21192.168.121.2150000UNODE22192.168.121.2250000UNODE22_2192.168.121.2250020U  

    example:

    export DB2INSTANCE=db2inst1 

    db2 get instance = db2inst1

    export export DB2INSTANCE= noexist

    db2 get instance = SQL10007N Message "-1390" could not be retrieved.  Reason code: "3".

    备份:

    db2 get dbm cfg > dbmcfg.bk
    db2set -all > db2set.bk
    db2 list db directory > systemdbdir.bk
    db2 list node directory > nodedir.bk
    db2 list dcs directory > dcsdir.bk





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  • 原文地址:https://www.cnblogs.com/kwingmei/p/3494937.html
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