我不知道如果我得到你的权利与瓷砖,但如果你通过瓜分TIMERANGE分为四个区域意味着它会工作像这样从2016-区间02-01至2016-06-01。权衡:手动计算间隔;可能一个能做到这一点直通日期计算,也
CREATE TABLE tblA (ACCT_ID INTEGER, PDATE DATE);
INSERT INTO TblA(ACCT_ID, PDATE) VALUES (1000,'2016-05-21');
INSERT INTO TblA(ACCT_ID, PDATE) VALUES (1001,'2016-05-11');
INSERT INTO TblA(ACCT_ID, PDATE) VALUES (1002,'2016-05-24');
INSERT INTO TblA(ACCT_ID, PDATE) VALUES (1003,'2016-04-21');
INSERT INTO TblA(ACCT_ID, PDATE) VALUES (1004,'2016-02-12');
INSERT INTO TblA(ACCT_ID, PDATE) VALUES (1005,'2016-02-21');
INSERT INTO TblA(ACCT_ID, PDATE) VALUES (1001,'2016-03-22');
INSERT INTO TblA(ACCT_ID, PDATE) VALUES (1002,'2016-04-01');
INSERT INTO TblA(ACCT_ID, PDATE) VALUES (1005,'2016-04-01');
INSERT INTO TblA(ACCT_ID, PDATE) VALUES (1006,'2016-04-01');
SELECT DISTR.DATE_RANGE, COUNT(DISTR.ACCT_ID)/OVRL.TOTALCNT
FROM (SELECT 'TOP25' as DATE_RANGE, A.ACCT_ID
FROM tblA A
WHERE A.PDATE BETWEEN STR_TO_DATE('01.05.2016', '%m/%d/%Y') AND STR_TO_DATE('01.06.2016', '%m/%d/%Y')
UNION ALL
SELECT 'TOP50' as DATE_RANGE, B.ACCT_ID
FROM tblA B
WHERE B.PDATE BETWEEN STR_TO_DATE('01.04.2016', '%m/%d/%Y') AND STR_TO_DATE('01.06.2016', '%m/%d/%Y')
UNION ALL
SELECT 'TOP75' as DATE_RANGE, C.ACCT_ID
FROM tblA C
WHERE C.PDATE BETWEEN STR_TO_DATE('01.03.2016', '%m/%d/%Y') AND STR_TO_DATE('01.06.2016', '%m/%d/%Y')
UNION ALL
SELECT 'ALL' as DATE_RANGE, C.ACCT_ID
FROM tblA C
WHERE C.PDATE BETWEEN STR_TO_DATE('01.02.2016', '%m/%d/%Y') AND STR_TO_DATE('01.06.2016', '%m/%d/%Y')) DISTR
, (SELECT COUNT(*) AS TOTALCNT FROM tblA A WHERE A.PDATE BETWEEN STR_TO_DATE('01.03.2016', '%m/%d/%Y') AND STR_TO_DATE('01.06.2016', '%m/%d/%Y')) OVRL
GROUP BY DISTR.DATE_RANGE, OVRL.TOTALCNT
将提供
ALL 10 10
TOP25 3 10
TOP50 7 10
TOP75 8 10