duanqi6274 2018-02-21 20:11
浏览 122
已采纳

为什么我们在PDO PHP中使用PDO :: closeCursor()方法/函数?

Why do we use PDO::closeCursor() method/function in PDO PHP?

Basically this question is asked already there but the answers are not contextual that can give a clear output that why PDO::closeCursor() is used?

When should I use closeCursor() for PDO statements?

On php.net its definition is too summarized that one cannot understand after reading it.

PHP.NET->pdo::closeCursor()

Can anyone tell? Examples will be more useful for better understanding.

  • 写回答

2条回答 默认 最新

  • dongping6974 2018-02-21 22:05
    关注

    Some databases does not support to execute and fetch the result from the next query until the previous query has the un-fetched results.

    Let suppose you are executing 2 queries, the first one is in the fetching state and is not completed yet and on the same moment you want the first query to be stop in the state where it is currently in, and want to move to next query so the PDO::closeCursor() is used between the two queries to pause the first query in the same state and begin the next one.

    Remember: This method is not compatible with all the PDO drivers.

    本回答被题主选为最佳回答 , 对您是否有帮助呢?
    评论
查看更多回答(1条)

报告相同问题?

悬赏问题

  • ¥15 qt+ffmpeg报错non-existing PPS 0 referenced
  • ¥15 FOC simulink
  • ¥15 咨询一下有关于王者荣耀赢藏战绩
  • ¥50 MacOS 使用虚拟机安装k8s
  • ¥500 亚马逊 COOKIE我如何才能实现 登录一个亚马逊账户 下发新 COOKIE ..我使用下发新COOKIE 导入ADS 指纹浏览器登录,我把账户密码 修改过后,原来下发新COOKIE 不会失效的方式
  • ¥20 玩游戏gpu和cpu利用率特别低,玩游戏卡顿
  • ¥25 oracle中的正则匹配
  • ¥15 关于#vscode#的问题:把软件卸载不会再出现蓝屏
  • ¥15 vimplus出现的错误
  • ¥30 怎么使用AVL fire ESE软件自带的优化模式来优化设计Soot和NOx?