oracle sql语句实现累加、累减、累乘、累除

CREATE TABLE TEST(
PARENT_ID NUMBER,
PART_ID NUMBER,
QUALITY NUMBER);

INSERT INTO TEST VALUES(1,1,2);
INSERT INTO TEST VALUES(1,2,3);
INSERT INTO TEST VALUES(1,3,2);
INSERT INTO TEST VALUES(1,4,5);
INSERT INTO TEST VALUES(2,2,3);
INSERT INTO TEST VALUES(2,3,5);
INSERT INTO TEST VALUES(2,4,7);

SELECT
T.*,
SUM(T.QUALITY) OVER (PARTITION BY T.PARENT_ID ORDER BY T.PART_ID) RUNNING_QUALITY
FROM
TEST T

SELECT
T.PARENT_ID,
T.PART_ID,
T.QUALITY,
SUM(DECODE(T.RN,1,T.QUALITY,-T.QUALITY)) OVER(PARTITION BY T.PARENT_ID ORDER BY T.PART_ID) RUNNING_PROD
FROM
(
SELECT
T.*,
ROW_NUMBER() OVER(PARTITION BY T.PARENT_ID ORDER BY T.PART_ID) RN
FROM
TEST T) T

SELECT
T.*,
ROUND(EXP(SUM(LN(T.QUALITY)) OVER(PARTITION BY T.PARENT_ID ORDER BY T.PART_ID)),0) RUNNING_PROD
FROM
TEST T

SELECT
T.PARENT_ID,
T.PART_ID,
T.QUALITY,
EXP(SUM(DECODE(RN,1,LN(T.QUALITY),-LN(T.QUALITY))) OVER(PARTITION BY T.PARENT_ID ORDER BY T.PART_ID)) RUNNING_PROD
FROM
(
SELECT
T.*,
ROW_NUMBER() OVER(PARTITION BY T.PARENT_ID ORDER BY T.PART_ID) RN
FROM
TEST T)T