数据库|mysql教程
如何,获取,存储,过程,返回,输出
数据库-mysql教程
手机版导购网站源码,中文版的vscode,ubuntu访问不了,电脑怎么装tomcat,网站代码爬虫,php开发网站的流程,seo优化百度指数,任务提交后台网站源码,phpwind 模板文件夹lzw
定义如下存储过程: create PROCEDURE mytest ( @returnval decimal OUTPUT –定义一个输出变量 ) as DECLARE @amount DECIMAL DECLARE mycursor CURSOR FOR SELECT Amount FROM dbo.test –定义一个游标 OPEN mycursor FETCH NEXT FROM mycursor INTO @amou
导航网源码v1.2,ubuntu划分硬盘大小,tomcat4源码下载,图片识别爬虫,大数据和php,康平正规抖音seo优化什么价格lzw
影视网址导航源码,ubuntu开不开机,莲塘甲虫爬虫防治,php后台连接,中国武夷seolzw
定义如下存储过程:
create PROCEDURE mytest
(
@returnval decimal OUTPUT –定义一个输出变量
)
as
DECLARE @amount DECIMAL
DECLARE mycursor CURSOR FOR SELECT Amount FROM dbo.test –定义一个游标
OPEN mycursor
FETCH NEXT FROM mycursor INTO @amount
WHILE @@FETCH_STATUS=0
BEGIN
IF(@amount=100)BEGIN
SET @returnval = @amount
END
FETCH NEXT FROM mycursor INTO @amount
END
CLOSE mycursor
DEALLOCATE mycursor
RETURN 1;
GO
执行存储过程获取返回值和输出值:
DECLARE @output DECIMAL
DECLARE @val INT
EXEC @val=mytest @returnval = @output OUTPUT
SELECT @val,@output
,网站空间,香港空间,香港空间