DB2查询表结构的SHELL

1.新建一个文件showtab

注意: 该文件要建在PATH值所指向的路径下,否则只能敲全路径才能执行

         可以在 .bash_profile里面看到 PATH路径 (PATH=$PATH:$HOME/bin)

       

2.在showtab里面画点东西:

db2 connect to iccarddb user iccard using iccard

db2 "describe select * from $1"

3.为此文件附加可执行权限:

chmod 777 showtab



测试:(如果showtab没放在PATH下 则需要 showtab所在路径/showtab tableName来执行)

showtab tableName

tableName替换成要查的库表名就可以了。

测试结果:




   Database Connection Information

Database server        = DB2/LINUX 9.7.4
SQL authorization ID   = ICCARD
Local database alias   = ICCARDDB


Column Information

Number of columns: 30

SQL type              Type length  Column name                     Name length
--------------------  -----------  ------------------------------  -----------
452   CHARACTER                 8  JGM                                       3
452   CHARACTER                40  JGMC                                      4
452   CHARACTER                20  JGJC                                      4
452   CHARACTER                 8  HQORGNO                                   7
452   CHARACTER                 8  SJJGM                                     5
452   CHARACTER                 8  SJQSJG                                    6
452   CHARACTER                 8  SJGLJG                                    6
452   CHARACTER                 8  BBHZJG                                    6
496   INTEGER                   4  WDLSH                                     5
452   CHARACTER                 1  PZBZ                                      4
496   INTEGER                   4  YYJD                                      4
496   INTEGER                   4  ZT                                        2
452   CHARACTER                20  KZZ                                       3
452   CHARACTER                 8  KBRQ                                      4
496   INTEGER                   4  JGLX                                      4
496   INTEGER                   4  JGJB                                      4
452   CHARACTER                60  JGFZR                       



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搞定!