存储过程的定义、修改和删除

1.存储过程的分类

• 系统存储过程
• 本地存储过程（用户自定义）
• 临时存储过程（局部【#】、全局【##】临时存储过程）

2.创建存储过程

--选出价格区间的商品信息
create procedure sp_goods_price
@minprice float ,@maxprice float
as 
select * from goods 
where price>=@minprice and price <=@maxprice
go

执行存储过程： execute sp_goods_price 200 2000

3.修改存储过程

create procedure sp_goods_betw
@minprice float =200,@maxprice float=3000
as 
select * from goods 
where price>=@minprice and price <=@maxprice
go

4.删除存储过程

drop procedure sp_goods_price

 5.查看存储过程

sp_helptext procedureName
sp_help procedureName

 6.重命名存储过程

exec sp_rename oldName newName

**局部存储过程

create procedure #sp_goods_betw
@minprice float ,@maxprice float
as 
select * from goods 
where price>=@minprice and price <=@maxprice
go

**全局存储过程

create procedure ##sp_goods_betw
@minprice float ,@maxprice float
as 
select * from goods 
where price>=@minprice and price <=@maxprice
go

**不加缓存的存储过程

create procedure sp_goods_betw
@minprice float ,@maxprice float

with recompile

as 
select * from goods 
where price>=@minprice and price <=@maxprice
go

**加密存储过程

create procedure sp_goods_betw
@minprice float ,@maxprice float

with enctyption

as 
select * from goods 
where price>=@minprice and price <=@maxprice
go