SQL批量删除

create table test
 ( 
 id int IDENTITY (1,1) PRIMARY KEY , 
 sjName VarChar(80) default  null 
 )

 insert into test(sjName) values ('dsfs1'), ('dsfs2'), ('dsfs3'), ('dsfs4')
select * from test

Create PROCEDURE pro_test 
    @falg int,
    @id varchar(200)
AS
BEGIN
    if @falg=1
        begin
             declare @sql varchar(500)
             set @sql='delete test where id in ('+@id+')'
             execute(@sql) 
        end
END
GO