当我运行这个选择
SELECT
D.Product_ID p_id
,D.Green_Sheet_ID gs_id
,SUM (P.prepress_amt) amt
FROM GS_Prepress AS P INNER JOIN
GS_Data AS D ON P.green_sheet_id = D.Green_Sheet_ID
WHERE
Product_ID ='194456'
GROUP BY D.Product_ID, D.Green_Sheet_ID
我明白了......
|p_id | gs_id |amt |
|-------|-------|---------|
|194456 | 5721 |33524.00 |
|194456 | 7484 |47524.00 |
我只想选择max(gs_is)的行,所以我只得到这个结果？
|p_id | gs_id |amt |
|-------|-------|---------|
|194456 | 7484 |47524.00 |