查询一个表的所有外键 SELECT 主键列ID=b.rkey ,主键列名=(SELECT name FROM syscolumns WHERE colid=b.rkey AND id=b.rkeyid) ,外键表ID=b.fkeyid ,外键表名称=object_name(b.fkeyid) ,外键列ID=b.fkey ,外键列名=(SELECT name FROM syscolumns WHERE colid=b.fkey AND id=b.fkeyid) ,级联更新=ObjectProperty(a.id,'CnstIsUpdateCascade') ,级联删除=ObjectProperty(a.id,'CnstIsDeleteCascade') FROM sysobjects a join sysforeignkeys b on a.id=b.constid join sysobjects c on a.parent_obj=c.id where a.xtype='f' AND c.xtype='U' and object_name(b.rkeyid)='titles'
SP_FKEYS TBNAME -- sysforeignkeys
查询一个表的所有外键 SELECT 主键列ID=b.rkey ,主键列名=(SELECT name FROM syscolumns WHERE colid=b.rkey AND id=b.rkeyid) ,外键表ID=b.fkeyid ,外键表名称=object_name(b.fkeyid) ,外键列ID=b.fkey ,外键列名=(SELECT name FROM syscolumns WHERE colid=b.fkey AND id=b.fkeyid) ,级联更新=ObjectProperty(a.id,'CnstIsUpdateCascade') ,级联删除=ObjectProperty(a.id,'CnstIsDeleteCascade') FROM sysobjects a join sysforeignkeys b on a.id=b.constid join sysobjects c on a.parent_obj=c.id where a.xtype='f' AND c.xtype='U' and object_name(b.rkeyid)='titles'
select object_name(fkeyid) [主表], c.name, object_name(rkeyid) [外表], d.name from sysforeignkeys a , sysobjects b, syscolumns c, syscolumns d where a.rkeyid = b.parent_obj and fkeyid = c.id and rkeyid = d.id and fkey = c.colid and rkey = d.colid and b.xtype = 'PK' and a.fkeyid = object_id('DM_DeliveryOrder')
SELECT 主键列ID=b.rkey
,主键列名=(SELECT name FROM syscolumns WHERE colid=b.rkey AND id=b.rkeyid)
,外键表ID=b.fkeyid
,外键表名称=object_name(b.fkeyid)
,外键列ID=b.fkey
,外键列名=(SELECT name FROM syscolumns WHERE colid=b.fkey AND id=b.fkeyid)
,级联更新=ObjectProperty(a.id,'CnstIsUpdateCascade')
,级联删除=ObjectProperty(a.id,'CnstIsDeleteCascade')
FROM sysobjects a
join sysforeignkeys b on a.id=b.constid
join sysobjects c on a.parent_obj=c.id
where a.xtype='f' AND c.xtype='U'
and object_name(b.rkeyid)='titles'
--
sysforeignkeys
SELECT 主键列ID=b.rkey
,主键列名=(SELECT name FROM syscolumns WHERE colid=b.rkey AND id=b.rkeyid)
,外键表ID=b.fkeyid
,外键表名称=object_name(b.fkeyid)
,外键列ID=b.fkey
,外键列名=(SELECT name FROM syscolumns WHERE colid=b.fkey AND id=b.fkeyid)
,级联更新=ObjectProperty(a.id,'CnstIsUpdateCascade')
,级联删除=ObjectProperty(a.id,'CnstIsDeleteCascade')
FROM sysobjects a
join sysforeignkeys b on a.id=b.constid
join sysobjects c on a.parent_obj=c.id
where a.xtype='f' AND c.xtype='U'
and object_name(b.rkeyid)='titles'
object_name(fkeyid) [主表],
c.name,
object_name(rkeyid) [外表],
d.name
from
sysforeignkeys a ,
sysobjects b,
syscolumns c,
syscolumns d
where
a.rkeyid = b.parent_obj
and fkeyid = c.id
and rkeyid = d.id
and fkey = c.colid and rkey = d.colid
and b.xtype = 'PK'
and a.fkeyid = object_id('DM_DeliveryOrder')