显示数据库中表字段的信息
SELECT 表名= d.name , 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
SELECT
表名
= d.name ,
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 parent_obj=a.id 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.xusertype=b.xusertype
inner join
sysobjects d
on
a.id=d.id 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