错误mysql“每个派生的表都必须有自己的别名”

Question

我在mysql中有一个错误，我激活你们帮助我，我遵循了堆栈溢出，我仍然有同样的错误

                              SELECT
                              (SELECT COUNT(*) 
                                FROM(SELECT DISTINCT status from absen_sore where nip='198606102011011005' AND opd='Dinas Komunikasi Dan Informatika' AND  MONTH(waktu) ='05')as dt)+
                                (
                                SELECT COUNT(*) 
                                FROM(SELECT DISTINCT status from ijin where nip='198606102011011005' AND opd='Dinas Komunikasi Dan Informatika' AND  MONTH(waktu) ='05' AND status='Konfirmasi'))as dt