如何使用数据库预言机对表中的列(Q.QTY)求和?SQL代码是这样的:
SELECT DISTINCT
M.MODEL_NO,
P.FORM_NO,
P.MODEL_NO,
TO_CHAR(TO_DATE(P.DATE_ADDED,'YYYY-MM-DD'),'MONTH'),
Q.FORM_NO,
Q.STATUS_QTY,
SUM(Q.QTY) OVER (PARTITION BY P.FORM_NO ORDER BY P.FORM_NO
RANGE UNBOUNDED PRECEDING) QTY
FROM
SEIAPPS_MODEL M, SEIAPPS_PRODUCTION_STATUS P, SEIAPPS_QTY Q
WHERE
P.FORM_NO = Q.FORM_NO AND P.MODEL_NO = M.MODEL_NO AND M.MODEL_NO = '15' AND P.DATE_ADDED LIKE '2013-05%' AND Q.STATUS_QTY = 'OK';
当我在 TOAD 中查询此 SQL 代码时,它将显示所有数据,而不是 Q.QTY 列中的所有 SUM。
我想要的是这样的:
QTY
5000 (example value)
请指教。谢谢
最简单的方法是将查询用作派生表,并将所有列的总和相加:
SELECT SUM(MODEL_NO1) + SUM(FORM_NO1) + SUM(MODEL_NO2) + SUM(TOCHAR) +
SUM(FORM_NO2) + SUM(STATUS_QTY) + SUM(QTY) AS SUM_ALL
FROM
(
SELECT DISTINCT
M.MODEL_NO AS MODEL_NO1,
P.FORM_NO AS FORM_NO1,
P.MODEL_NO AS MODEL_NO2,
TO_CHAR(TO_DATE(P.DATE_ADDED,'YYYY-MM-DD'),'MONTH') AS TOCHAR,
Q.FORM_NO AS FORM_NO2,
Q.STATUS_QTY,
SUM(Q.QTY) OVER (PARTITION BY P.FORM_NO ORDER BY P.FORM_NO
RANGE UNBOUNDED PRECEDING) QTY
FROM
SEIAPPS_MODEL M, SEIAPPS_PRODUCTION_STATUS P, SEIAPPS_QTY Q
WHERE
P.FORM_NO = Q.FORM_NO AND P.MODEL_NO = M.MODEL_NO AND M.MODEL_NO = '15' AND P.DATE_ADDED LIKE '2013-05%' AND Q.STATUS_QTY = 'OK'
) x
请注意,您有不明确的列名和未命名的列,因此我不得不给它们一个别名。
我看起来你想要所有Q.QTY的总数。 您正在使用窗口函数。 更多信息在这里。
http://docs.oracle.com/cd/E11882_01/server.112/e26088/functions004.htm#i81407
另外,我建议改用 ANSI 联接语法。
SELECT DISTINCT
M.MODEL_NO,
P.FORM_NO,
P.MODEL_NO,
TO_CHAR(TO_DATE(P.DATE_ADDED,'YYYY-MM-DD'),'MONTH'),
Q.FORM_NO,
Q.STATUS_QTY,
SUM(Q.QTY) OVER (PARTITION BY P.FORM_NO ORDER BY P.FORM_NO
RANGE UNBOUNDED PRECEDING) QTY
SUM(Q.QTY) OVER() As SumOfAll -- Sum of the entire QTY column
FROM SEIAPPS_MODEL M
JOIN SEIAPPS_PRODUCTION_STATUS P
ON P.MODEL_NO = M.MODEL_NO
JOIN SEIAPPS_QTY Q
ON P.FORM_NO = Q.FORM_NO
WHERE
M.MODEL_NO = '15' AND P.DATE_ADDED LIKE '2013-05%' AND Q.STATUS_QTY = 'OK';