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请问如何取表结构中字段的描述
引用邹建的：
SELECT
表名=case when a.colorder=1 then d.name 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 sysproperties g on a.id=g.id and a.colid=g.smallid
order by a.id,a.colorder
在给你一个简单的是自己写的
SELECT a.表名,a.字段名,a.类型和长度,a.可否未空,b.text as 默认值 from
(select A.name as 表名,b.name as 字段名,c.name+(+cast(b.length as varchar)+) as 类型和长度,b.isnullable as 可否未空,B.cdefault
from sysobjects A ,syscolumns B,systypes C
where A.xtype=u and a.id=b.id and B.xusertype=c.xusertype
) a left join syscomments B on a.cdefault=b.id
order by A.表名
