我有一个数据库,其中有一个名为“status”的列。该列可以包含五个可能的值。现在,我需要对行数进行求和,其中status列包含“已取消”值。请问我应该在PHP中使用什么函数来计算它?$canceledsum=mysql_query("SELECT COUNT(*) AS totalcanceled FROM nabidka WHERE status='canceled'");
$d=mysql_fetch_assoc($canc
我有这样的情况: SELECT uf.*, SUM(uto.points) AS total_points_live, (total_points_live + total_points_online) AS total_points LEFT JOIN users_tourney_online AS uto