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MYSQL|count()函式使用條件分別統計

select class1_id ,class1_name ,class2_id ,class2_name ,run_id ,count(run_id) as count_all#提交數 ,count(run_ok>0 or null) as count_done#處理數 ,count(run_ok=1 or null) as count1#合格數 ,count(run_ok=2 or null) as count2#不合格數 from `class2` join `class1` on class2_class1_id=class1_id left
join `run` on run_class2_id=class2_id and date(run_addtime) between '$s_date1' and '$s_date2' group by class2_id order by class1_id,class2_id