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mysqlquery函数
mysqlquery函数
相关
mysql
_
query函数
问题
写mysql
函数
的时候,出现了这样一个问题,进行数据查询,
mysql
_
query
(&mysql,select*from test);连续执行两次这个语句,第二次就出现了问题,隐约也能感觉到不对,就是不太清楚为什么,有大神知道吗?
为何不能用IF语句直接判断
mysql
_
query函数
的返回值?
比如在PHP文件中这么调用:if(
mysql
_
query
($sql)).else.$sql为insert语句似乎这么写不管返回什么值都会执行else语句 而写成:`$DB=
mysql
_
query
($sql);if($DB>0)echo"true;else echo"false;`则可以,所以这是什么情况=!另外我是用一个JS...
1
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云数据库RDS MySQL版
MySQL 是全球最受欢迎的开源数据库,阿里云MySQL版 通过深度的内核优化和独享实例提供稳定极致的数据库性能,同时灵活的部署架构及产品形态,可满足不同场景下的数据库需求。
了解详情
管理控制台
在线咨询
最新活动
MySQL2核4G 8.8元/月
数据库专场优惠
快速入门
帮助文档
快速入门
最佳实践
SaaS上云数据库
数据库客户案例合集
产品推荐
云数据库PolarDB
云原生数据仓库MySQL
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云数据库RDS MySQL版
MySQL 是全球最受欢迎的开源数据库,阿里云MySQL版 通过深度的内核优化和独享实例提供稳定极致的数据库性能,同时灵活的部署架构及产品形态,可满足不同场景下的数据库需求。
了解详情
管理控制台
在线咨询
最新活动
MySQL2核4G 8.8元/月
数据库专场优惠
快速入门
帮助文档
快速入门
最佳实践
SaaS上云数据库
数据库客户案例合集
产品推荐
云数据库PolarDB
云原生数据仓库MySQL