2
SELECT id,name,SUM(`lsa`) AS lst FROM
table_a AS sn,
table_b AS fb
WHERE sn.uid=fb.uid
AND COUNT(`lsa`)=6
GROUP BY sn.uid
ORDER BY SUM(`lsa`)
我有一个像这样的查询,显然AND COUNT(lsa)=6
位是无效的语法。我很迷茫。COUNTing有多少行GROUPED BY
我想实现的是一个清单,由lsa
总和下令,由uid
分组,只有有6项为UID,即在“组”。我该怎么做?
'你可以在10分钟内接受答案' – 2012-01-18 17:54:26