别忘了,如果要混合使用分组(即SUM)字段和非分组字段,则需要对非分组字段之一进行GROUP BY。
尝试这个:
SELECt SUM(something) AS fieldnameFROM tablenameORDER BY fieldname
或这个:
SELECt Field1, SUM(something) AS Field2FROM tablenameGROUP BY Field1ORDER BY Field2
而且,您始终可以执行以下派生查询:
SELECt f1, f2FROM ( SELECt SUM(x+y) as f1, foo as F2 FROM tablename GROUP BY f2 ) as table1ORDER BY f1
许多可能性!



