我有一个列有“工作时间”列的表格,我希望对所有行进行求和:
08:00
02:00
03:30
Total: 13:30
这是我的sql选择代码
$sql=mysql_query("SELECT * FROM sohy_works WHERE data_raport = '$data' AND codangajat = '$codangajat' ");
答案 0 :(得分:3)
你可以像这样计算,
SELECT SEC_TO_TIME( SUM( your_time_field ) ) FROM sohy_works WHERE .....
答案 1 :(得分:2)
从db获取秒数并将其转换为小时和分钟:
$q = "SELECT SUM(TIME_TO_SEC(worked_hours)) FROM sohy_works WHERE data_raport = '$data' AND codangajat = '$codangajat'";
$result = mysql_query( $q );
$sec = mysql_fetch_array($result);
$hours = floor( $sec[0]/3600 );
$minutes = str_pad( floor( $sec[0] % 3600/60 ), 2, '0', STR_PAD_LEFT );
echo $hours.':'.$minutes;
编辑:
可以使用SQL查询直接计算小时和分钟,如:
SELECT SEC_TO_TIME( SUM( TIME_TO_SEC( `worked_hours` ) ) ) FROM ...