zoukankan      html  css  js  c++  java
  • SQL server 为表和字段添加表描述和字段描述

    查看当前数据库中已存在描述的表与字段:

    SELECT  表名 =
       -- CASE   when   a.colorder=1   then  
            d.name 
       --  else   ''   end
            ,
            表说明 =
     -- CASE   when   a.colorder=1   then   
            ISNULL(f.value, '')
       --  else   ''   END
            ,   
      字段序号=a.colorder,   
            字段名 = a.name ,   
      标识=case   when   COLUMNPROPERTY(   a.id,a.name,'IsIdentity')=1   then   '√'else   ''   end,   
      主键=case   when   exists(SELECT   1   FROM   sysobjects   where   xtype='PK'   and   name   in   (   
      SELECT   name   FROM   sysindexes   WHERE   indid   in(   
      SELECT   indid   FROM   sysindexkeys   WHERE   id   =   a.id   AND   colid=a.colid   
      )))   then   '√'   else   ''   end,   
      类型=b.name,   
      占用字节数=a.length,   
      长度=COLUMNPROPERTY(a.id,a.name,'PRECISION'),   
      小数位数=isnull(COLUMNPROPERTY(a.id,a.name,'Scale'),0),   
      允许空=case   when   a.isnullable=1   then   '√'else   ''   end,   
      默认值=isnull(e.text,''),   
            字段说明 = ISNULL(g.[value], '')
    FROM    syscolumns a
            LEFT   JOIN systypes b ON a.xtype = b.xusertype
            INNER   JOIN sysobjects d ON a.id = d.id
                                         AND d.xtype = 'U'
                                         AND d.name <> 'dtproperties'
            LEFT   JOIN syscomments e ON a.cdefault = e.id
            LEFT   JOIN sys.extended_properties g ON a.id = g.major_id
                                                     AND a.colid = g.minor_id
            LEFT   JOIN sys.extended_properties f ON d.id = f.major_id
                                                     AND f.minor_id = 0

    在查询分析器中执行上面的SQL,结果可以直接导出execl文件

    添加表说明:

    EXECUTE sp_addextendedproperty N'MS_Description','表说明',N'user',N'dbo',N'table',N'表名',NULL,NULL

     

    删除表说明:

    EXEC sp_dropextendedproperty N'MS_Description','user','dbo','table', '表名', NULL,NULL

    添加字段说明:

    EXECUTE sp_addextendedproperty N'MS_Description','字段说明内容',N'user',N'dbo',N'table',N'表名',N'column',N'字段名'

    删除字段说明:

    EXEC sp_dropextendedproperty N'MS_Description', 'user','dbo', 'table', '表名', 'column','字段名'

    出处:https://blog.csdn.net/zhangyongze_z/article/details/84789821

  • 相关阅读:
    微信小程序HTTPS
    微信商城-1简介
    va_list
    Event log c++ sample.
    EVENT LOGGING
    Analyze Program Runtime Stack
    unknow table alarmtemp error when drop database (mysql)
    This application has request the Runtime to terminate it in an unusual way.
    How to check if Visual Studio 2005 SP1 is installed
    SetUnhandledExceptionFilter
  • 原文地址:https://www.cnblogs.com/mq0036/p/14215895.html
Copyright © 2011-2022 走看看