use sample_db;
--创建测试books表
create table books (
book_id int identity(1,1) primary key,
book_name varchar(20),
book_price float,
book_auth varchar(10)
);
--插入测试数据
insert into books (book_name,book_price,book_auth)
values
('论语',25.6,'孔子'),
('天龙八部',25.6,'金庸'),
('雪山飞狐',32.7,'金庸'),
('平凡的世界',35.8,'路遥'),
('史记',54.8,'司马迁');
--------------------------------------------------------------------------------------
--1.创建无参存储过程
if (exists (select * from sys.objects where name = 'getAllBooks'))
drop proc proc_get_student
go
create procedure getAllBooks
as
select * from books;
--调用,执行存储过程
exec getAllBooks;
这个里面为什么判断了‘getAllBooks’，然后drop的是‘proc_get_student’？
