客服电话
APP下载
迪恩网络APP
随时随地掌握行业动态
官方微信
扫描二维码
关注迪恩网络微信公众号
|
MYSQL事务处理让所有sql语句执行成功后才去处理，如果有一条没有成功或者报错就会回滚事务，防止敏感操作处理失败。MYSQL中只有INNODB和BDB类型的数据表才能支持事务处理！其它类型是不支持的！ $mysqli->autocommit(FALSE); //关闭自动提交功能 $sql = "UPDATE users SET money = money-300 WHERE username = 'Mike'"; $res1 = $mysqli->query($sql); $res1_rows = $msyqli->affected_rows; $sql2 = "UPDATE users SET money = money+300 WHERE username = 'Tom'"; $res2 = $mysqli->query($sql2); $res2_rows = $mysqli->affected_rows; if($res1 && $res1_rows>0 && $res2 && $res2_rows>0){ $msyqli->commit(); //提交事务 echo '执行成功'; $mysqli->autocommit(TRUE); //开启自动提交功能 else{ //事务回滚 $mysqli->rollback(); echo '执行失败; }
|
2022-07-29
2022-08-30
2022-08-17
2022-11-06
2022-08-18
kojino/Harvard-Robust-Machine-Learning: Repository for CS282R: Robust Machine Le
cescoffier/puppet-nexus: A Puppet Module for Nexus (Maven)
文字笔顺怎么写?文字笔顺笔画顺序是什么?诠释文字的笔画顺序怎么写了解到好多的写字朋
The Lukasavicus/WindMill repository through 1.0 on GitHub allows absolute path t
Cassolotl/sentient.cloud · GitHub
robisim74/angular-library-starter: Build an Angular library compatible with AoT
zentyal/zentyal: Linux Small Business Server
updownpress/markdown-lint: Markdown Lint Tool / Checker Documentation by Mark Ha
? 随着社会的快速发展，人们的生活水平在不断提高的同时，更加注重享受生活。便捷、舒
The X-Frame-Options header in Rockwell Automation MicroLogix 1100/1400 Versions
请发表评论