谢谢了
学习中
学习中
谢谢了，但其中有几处小疑问，是不是打字打错了: // 还有一处忘了在哪了
SELECT A1.region_name REGION, SUM(A2.Sales) SALES
FROM Geography A1, Store_Information A2
WHERE A1.store_name = A2.store_name
GROUP BY A1.region_name
[此贴子已经被作者于2007-10-17 16:48:16编辑过]
2007-10-15 13:15
2007-10-17 16:44
2007-10-17 17:09
2007-10-17 17:33
2007-10-17 17:36
2007-10-18 18:47
2007-10-31 17:41
2008-01-20 23:22
2008-01-22 15:05
2008-01-29 15:47
