这是查询的工作版本。我只需要用AS保存新值。感谢Andy。
$Wednesday = mysqli_query($conn, "SELECT *,TIME_FORMAT(class_start,'%l:%i %p') AS new_class_start,TIME_FORMAT(class_end,'%l:%i %p') AS new_class_end
FROM wednesday INNER JOIN classes_new ON wednesday.classes_id=classes_new.classes_id WHERE classes_status='0' AND class_start NOT LIKE ''ORDER BY class_start;");
当我运行查询时，我有一个包含两个数据类型TIME列的表，时间值返回为hh：mm：ss。我想把它转换成h：mm AMPM。我尝试过使用javascript，但我确信这在MySQL中是可行的。我试图使用TIME_FORMAT，但我认为我的语法错误。运行以下查询后，将在while循环中回显值。请告知转换时间值的最佳方法。 谢谢！
$Wednesday = mysqli_query($conn, "SELECT *,TIME_FORMAT(wednesday.class_start,'%h:%i %p')
FROM wednesday INNER JOIN classes_new ON wednesday.classes_id = classes_new.classes_id WHERE classes_status =＆＃39; 0＆＃39; AND class_start NOT LIKE＆＃39;＆＃39; ORDER BY class_start;＆＃34;）;
答案 0 :(得分：1)
这应该有效
TIME_FORMAT(your_time,"%h:%i %p") AS your_time_formatted;
修改<！/强> 添加了AS