mysql 存储过程 时间变量定义 mysql存储过程的修改

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 floatas select * from goods

where price>=@minprice and price <=@maxpricego

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=3000as select * from goods
where price>=@minprice and price <=@maxpricego
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 floatas select * from goods
where price>=@minprice and price <=@maxpricego
**全局存储过程
create procedure ##sp_goods_betw@minprice float ,@maxprice floatas select * from goods
where price>=@minprice and price <=@maxpricego
**不加缓存的存储过程
,with recompileas select * from goodswhere price>=@minprice and price <=@maxpricego
**加密存储过程
,with enctyptionas select * from goods
where price>=@minprice and price <=@maxpricego