SQL写存储过程时报错 'CREATE/ALTER PROCEDURE' must be the first statement in a query batch.

最近在学习存储过程，从网上直接复制了这个存储过程

if exists

(select name from sysobjects where name ='up_getallstudents' and type ='p')

drop procedure up_getallstudents

--编写存储过程up_getallstudents,用于获取学生表students的所有记录 

create procedure up_getallstudents 

as

select * from T_stu_cou

然后create procedure up_getallstudents 总报错，执行之后就提示

Msg 111, Level 15, State 1, Procedure up_getallstudents, Line 9

'CREATE/ALTER PROCEDURE' must be the first statement in a query batch.

然后找了一下原因，在create procedure up_getallstudents前缺少了GO,

因为这些语句需要放在单独的批处理中,在SQL Server中使用go来分批.

所以正确语句是

if exists

(select name from sysobjects where name ='up_getallstudents' and type ='p')

drop procedure up_getallstudents

--编写存储过程up_getallstudents,用于获取学生表students的所有记录 

GO

create procedure up_getallstudents 

as

select * from T_stu_cou

当然不是写一句就加GO,只要是在一个批处理就不用加GO,但是适当多加，显得清晰不容易出错，希望会帮到大家