--use wangkejidatabase

use demodtcms

SELECT a.colid,* from syscolumns a inner join sysobjects d on a.id=d.id and d.xtype=‘U‘ and d.name =‘gggggggggg‘ left join syscomments e on a.cdefault=e.id --WHERE a.name=‘asda11‘

use wangkejidatabase

SELECT a.colid,* from syscolumns a inner join sysobjects d on a.id=d.id and d.xtype=‘U‘ and d.name =‘gggggggggg‘ left join syscomments e on a.cdefault=e.id --WHERE a.name=‘asda11‘

use demodtcms
select * from sysobjects where type=‘F‘ and parent_obj = OBJECT_ID(‘test‘)

use wangkejidatabase
--外键信息
select fk.name fkname , ftable.name ftablename, cn.name fkcol, rtable.name ftablename,ObjectProperty(fk.id,‘CnstIsUpdateCascade‘) updatCase,ObjectProperty(fk.id,‘CnstIsDeleteCascade‘) deletCase from sysforeignkeys
join sysobjects fk
on sysforeignkeys.constid = fk.id
join sysobjects ftable
on sysforeignkeys.fkeyid = ftable.id
join sysobjects rtable
on sysforeignkeys.rkeyid = rtable.id
join syscolumns cn
on sysforeignkeys.fkeyid = cn.id and sysforeignkeys.fkey = cn.colid

--外键被参考表
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)
,外键名称= c.name
,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
join syscolumns cn
on b.fkeyid = cn.id and b.fkey = cn.colid
where a.xtype=‘f‘ AND c.xtype=‘U‘
and object_name(b.rkeyid)=‘dt_article‘

DECLARE @dbname1 varchar(250)--要比较的数据库名1
DECLARE @dbname2 varchar(250) --要比较的数据库名2

set @dbname1=‘demodtcms‘
set @dbname2=‘wangkejidatabase‘

create table #fk1(外键名 varchar(250),子表名 varchar(250),子表列 varchar(250),被参考表 varchar(250),被参考列 varchar(250),启用 bit,
删除操作 varchar(50),更新操作 varchar(50))

--use demodtcms
--外键详细信息
insert into #fk1 SELECT
外键名=f.name --AS foreign_key_name
,子表名=OBJECT_NAME(f.parent_object_id) --AS table_name
,子表列=COL_NAME(fc.parent_object_id, fc.parent_column_id) --AS constraint_column_name
,被参考表=OBJECT_NAME (f.referenced_object_id) ---AS referenced_object
,被参考列=COL_NAME(fc.referenced_object_id, fc.referenced_column_id) --AS referenced_column_name
,启用=is_disabled
,删除操作=delete_referential_action_desc
,更新操作=update_referential_action_desc
FROM sys.foreign_keys AS f
INNER JOIN sys.foreign_key_columns AS fc
ON f.object_id = fc.constraint_object_id
WHERE f.parent_object_id in (SELECT id from sysobjects WHERE xtype=‘U‘) ORDER BY f.name
--= OBJECT_ID(‘‘test‘‘)

SELECT * FROM #fk1

单表的列信息（序号）操作