MSSQL to remove all foreign key constraint method

The Internet to find sql statement to delete a database to get all foreign key constraints statements

But found that it was just an inquiry, to be performed, then had to copy out the execution, more trouble

So wrote a sp to automate more convenient

code show as below:

 

Sql Code  

1. CREATE PROCEDURE sp_drop_all_fk  
2.   
3. as  
4.   
5. declare @sql varchar(255)  
6. declare dropsql_cursor cursor for   
7. select 'alter table '+object_name(fkeyid)+' drop constraint '+object_name(constid)+char(10) from sysreferences  
8.   
9. open dropsql_cursor  
10.   
11. fetch dropsql_cursor into @sql  
12.   
13. begin tran  
14.   
15. while @@fetch_status=0  
16. begin  
17.       
18.     execute(@sql)  
19.       
20.     if @@error <> 0  
21.     begin  
22.         rollback  
23.         return  
24.     end  
25.   
26.     fetch dropsql_cursor into @sql  
27.   
28. end  
29. deallocate dropsql_cursor  
30.   
31. commit  
32. GO  

Reproduced in: https: //www.cnblogs.com/zhangchenliang/archive/2012/12/05/2802522.html