SQL server 为表和字段添加表描述和字段描述 - jack_Meng

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