提取MSSQL所有外键约束

--提取所有外键信息并列出所在表

--select OBJECT_NAME(parent_object_id) 'table', * from sys.objects where type='F'

 

-- 删除所有外键的方法1

select 'alter table '+OBJECT_NAME(parent_object_id)+' drop constraint '+name from sys.objects where type='F'
 将查询的结果 复制出来执行一下就ok

 

--方法2

 

declare @sql varchar(max),
 @tab_name varchar(128),
 @fk_name varchar(128);
declare c cursor for
select OBJECT_NAME(parent_object_id), name from sys.objects where type='F'

open c
fetch next from c into @tab_name, @fk_name
while @@FETCH_STATUS=0
begin
 set @sql='';
 set @sql='alter table ' + @tab_name + ' drop constraint ' + @fk_name
 print @sql
 exec(@sql)
 
 fetch next from c into @tab_name, @fk_name
end
close c
deallocate c