1.獲取數據庫中的表

select name from sysobjects where type='U'

2.獲取表字段（此處是Route表）

Select name from syscolumns Where ID=OBJECT_ID('Route')

3.獲取表中字段的描述

SELECT value FROM ::fn_listextendedproperty (NULL, 'user', 'dbo', 'table', 'Route', 'column', default)

4.獲取表的信息的所有信息如下圖

select b.[value] from sys.columns a left join sys.extended_properties b on a.object_id=b.major_id and a.column_id=b.minor_id inner join sysobjects c on a.column_id=c.id and a.[name]='列名' and c.[name]='表名' SELECT 表名=case when a.colorder=1 then d.name else '' end, 表說明=case when a.colorder=1 then isnull(f.value,'') else '' end, 字段序號=a.colorder, 字段名=a.name, 標識=case when COLUMNPROPERTY( a.id,a.name,'IsIdentity')=1 then '√'else '' end, 主鍵=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, 類型=b.name, 占用字節數=a.length, 長度=COLUMNPROPERTY(a.id,a.name,'PRECISION'), 小數位數=isnull(COLUMNPROPERTY(a.id,a.name,'Scale'),0), 允許空=case when a.isnullable=1 then '√'else '' end, 默認值=isnull(e.text,''), 字段說明=isnull(g.[value],'') FROM syscolumns a left join systypes b on a.xusertype=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 --where d.name='orders' --如果只查詢指定表,加上此條件 order by a.id,a.colorder

?

如下圖

5.獲取一個表的表名，字段名，數據類型，字段說明的簡寫SQL： SELECT --表名[TableName] = i_s.TABLE_NAME, --列名[ColumnName] = i_s.COLUMN_NAME, --字段描述[Description] = s.value,--數據類型[DataType]=i_s.DATA_TYPE ,--是否是主鍵[IsPrimaryKey]=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 '1' else '0' endFROM INFORMATION_SCHEMA.COLUMNS i_s LEFT OUTER JOIN sys.extended_properties s ON s.major_id = OBJECT_ID(i_s.TABLE_SCHEMA+'.'+i_s.TABLE_NAME) AND s.minor_id = i_s.ORDINAL_POSITIONAND s.name = 'MS_Description' INNER JOIN syscolumns a ON a.id=s.major_id AND a.colid=s.minor_idWHERE OBJECTPROPERTY(OBJECT_ID(i_s.TABLE_SCHEMA+'.'+i_s.TABLE_NAME), 'IsMsShipped')=0 AND i_s.TABLE_NAME = 'BusRoute' AND i_s.TABLE_SCHEMA='office'ORDER BY i_s.TABLE_NAME, i_s.ORDINAL_POSITION

?

?

轉載于:https://www.cnblogs.com/lxhbky/p/6110653.html

總結

以上是生活随笔為你收集整理的sql 2012中获取表的信息，包含字段的描述的全部內容，希望文章能夠幫你解決所遇到的問題。

如果覺得生活随笔網站內容還不錯，歡迎將生活随笔推薦給好友。