sql 存储过程 in 的两种写法

CREATE PROCEDURE sp_CountShiftWish 
    @strids varchar (1024)   /*strids   是id列表，   类似1,2,3*/ 
AS 
   exec (‘select * from student where id in(‘+@strids+‘)‘)
 
go

CREATE   PROCEDURE   sp_CountShiftWish 
   @strids   varchar   (1024)   /*strids   是id列表，   类似1,2,3*/ 
AS 
    select   *   from   student   where  charindex(‘,‘+ltrim(id)+‘,‘,‘,‘+@strids+‘,‘)>0 
go