#####如何通过查询系统表得到某表的所有唯一索引列和唯一约束列？#####

[bluelark]

如何通过查询系统表得到某表的所有唯一索引列和唯一约束列?
请给出脚本，很急，非常感谢！！！

马上给分。

[KnowLittle]

有点难度，可以找出pk和constraint，但是要定位到列，好像不行，让我再想想

[KnowLittle]

我知道了，等一下就给代码

[pengdali]

select rtrim(b.name) as colname
,case when h.id is not null then 'PK' else '' end as primarykey
,type_name(b.xusertype) + case when b.colstat & 1 = 1 then '[ID(' + convert(varchar,ident_seed(a.name)) + ',' + convert(varchar,ident_incr(a.name)) + ')]' else '' end as type
,b.length
,case b.isnullable when 0 then 'N' else 'Y' end as [isnull]
,isnull(e.text,'') as [default]
,isnull(c.value,'') as descript
from sysobjects a,syscolumns b
left outer join sysproperties c on b.id = c.id and b.colid = c.smallid
left outer join syscomments e on b.cdefault = e.id
left outer join (select g.id,g.colid from sysindexes f,sysindexkeys g where f.id = g.id and f.indid = g.indid and f.indid > 0 and f.indid < 255 and (f.status & 2048)<>0) h on b.id = h.id and b.colid = h.colid
where a.id = b.id
and a.id = object_id('titles') --tablename改成你要导出的表的名称
order by b.colid

[glboy]

EXEC sp_helpconstraint 表名

[wgy2008]

学习

[alexwoowf]

力王！崇拜........

[KnowLittle]

偶来学习，
另外
sysconstrains里面有关于约束的信息

大力兄好像没有提供

[bluelark]

大力，你的脚本获取的是表中所有列的类型、名称等信息，和唯一索引无关呀？

[KnowLittle]

你的唯一索引是不是unique constraints?

[bluewatermark]

declare @TblName varchar(30)

set @TblName = '...'

select b.id, b.name, d.name
from sysobjects a, sysindexes b, sysindexkeys c, syscolumns d
where a.name = @TblName and a.id = b.id and INDEXPROPERTY(object_id(@TblName), b.name, 'IsUnique') = 1 and c.id = a.id and c.colid = d.colid and c.indid = b.indid and d.id = a.id