1. 根據末級遞歸查詢出上級，形成樹形結構
SELECT DISTINCT ACC.ACCOUNTCODEID, ACC.PARENTCODEID, ACC.ACCOUNTCODE, ACC.ACCOUNTCODENAME,
ACC.FIRSTORDER, ACC.SECONDORDER,T.PLANMAINID, T.PLANMAINNAME, T.PLANMAINCODE,'Y' AS ISACCOUNT,
CASE WHEN NVL(T.ACCOUNTCODEID,0) =0 THEN 'Y' ELSE 'N' END AS ISADD,
T.COMPANYID, T.BUDGETYEAR,
T.NAMTMONTH1,T.NAMTMONTH2,T.NAMTMONTH3,T.NAMTMONTH4,T.NAMTMONTH5,T.NAMTMONTH6,T.NAMTMONTH7,T.NAMTMONTH8,
T.NAMTMONTH9,T.NAMTMONTH10,T.NAMTMONTH11,T.NAMTMONTH12
FROM FM_ACCOUNTCODE ACC
LEFT JOIN (
SELECT COMPANYID, BUDGETYEAR, ACCOUNTCODEID, ACCOUNTCODE , ACCOUNTCODENAME, 0 AS PLANMAINID, NULL AS PLANMAINNAME,NULL AS PLANMAINCODE,
SUM(NAMTMONTH1) AS NAMTMONTH1,SUM(NAMTMONTH2) AS NAMTMONTH2,SUM(NAMTMONTH3) AS NAMTMONTH3,
SUM(NAMTMONTH4) AS NAMTMONTH4,SUM(NAMTMONTH5) AS NAMTMONTH5,SUM(NAMTMONTH6) AS NAMTMONTH6,
SUM(NAMTMONTH7) AS NAMTMONTH7,SUM(NAMTMONTH8) AS NAMTMONTH8,SUM(NAMTMONTH9) AS NAMTMONTH9,
SUM(NAMTMONTH10) AS NAMTMONTH10,SUM(NAMTMONTH11) AS NAMTMONTH11,SUM(NAMTMONTH12) AS NAMTMONTH12
FROM FM_CURRENTEFFECTIBUDGET WHERE COMPANYID = 6205 AND RECORDSTATUS <> 'INACTIVE'
--AND ISACCOUNTBUDGET = 'Y'
GROUP BY COMPANYID, BUDGETYEAR, ACCOUNTCODEID, ACCOUNTCODE , ACCOUNTCODENAME--,PLANMAINID, PLANMAINNAME, PLANMAINCODE
) T ON ACC.ACCOUNTCODEID = T.ACCOUNTCODEID
START WITH ACC.ACCOUNTCODEID = T.ACCOUNTCODEID
CONNECT BY PRIOR ACC.PARENTCODEID = ACC.ACCOUNTCODEID
ORDER BY ACC.FIRSTORDER, ACC.SECONDORDER
2.根據1的sql，我們可以輕鬆得到所有層級的數據，但是呢，父級上並沒有進行彙總下級的金額，所以改造爲：
SELECT
ACCOUNTCODEID, PARENTCODEID, ACCOUNTCODE, ACCOUNTCODENAME, FIRSTORDER, SECONDORDER,
PLANMAINID, PLANMAINNAME, PLANMAINCODE, ISACCOUNT,ISADD,
COMPANYID, BUDGETYEAR,
SUM(NAMTMONTH1) AS NAMTMONTH1,
SUM(NAMTMONTH2) AS NAMTMONTH2,
SUM(NAMTMONTH3) AS NAMTMONTH3,
SUM(NAMTMONTH4) AS NAMTMONTH4,
SUM(NAMTMONTH5) AS NAMTMONTH5,
SUM(NAMTMONTH6) AS NAMTMONTH6,
SUM(NAMTMONTH7) AS NAMTMONTH7,
SUM(NAMTMONTH8) AS NAMTMONTH8,
SUM(NAMTMONTH9) AS NAMTMONTH9,
SUM(NAMTMONTH10) AS NAMTMONTH10,
SUM(NAMTMONTH11) AS NAMTMONTH11,
SUM(NAMTMONTH12) AS NAMTMONTH12
FROM (
SELECT CONNECT_BY_ROOT ACCOUNTCODEID ACCOUNTCODEID,CONNECT_BY_ROOT PARENTCODEID PARENTCODEID,
CONNECT_BY_ROOT ACCOUNTCODE ACCOUNTCODE,CONNECT_BY_ROOT ACCOUNTCODENAME ACCOUNTCODENAME,
CONNECT_BY_ROOT FIRSTORDER FIRSTORDER,CONNECT_BY_ROOT SECONDORDER SECONDORDER,
CONNECT_BY_ROOT COMPANYID COMPANYID,CONNECT_BY_ROOT BUDGETYEAR BUDGETYEAR,
CONNECT_BY_ROOT PLANMAINID PLANMAINID,CONNECT_BY_ROOT PLANMAINNAME PLANMAINNAME,
CONNECT_BY_ROOT PLANMAINCODE PLANMAINCODE,CONNECT_BY_ROOT ISACCOUNT ISACCOUNT,
CONNECT_BY_ROOT ISADD ISADD,
A.NAMTMONTH1,A.NAMTMONTH2,A.NAMTMONTH3,A.NAMTMONTH4,A.NAMTMONTH5,A.NAMTMONTH6,A.NAMTMONTH7,A.NAMTMONTH8,
A.NAMTMONTH9,A.NAMTMONTH10,A.NAMTMONTH11,A.NAMTMONTH12
FROM (
SELECT DISTINCT ACC.ACCOUNTCODEID, ACC.PARENTCODEID, ACC.ACCOUNTCODE, ACC.ACCOUNTCODENAME,
ACC.FIRSTORDER, ACC.SECONDORDER,T.PLANMAINID, T.PLANMAINNAME, T.PLANMAINCODE,'Y' AS ISACCOUNT,
CASE WHEN NVL(T.ACCOUNTCODEID,0) =0 THEN 'Y' ELSE 'N' END AS ISADD,
T.COMPANYID, T.BUDGETYEAR,
T.NAMTMONTH1,T.NAMTMONTH2,T.NAMTMONTH3,T.NAMTMONTH4,T.NAMTMONTH5,T.NAMTMONTH6,T.NAMTMONTH7,T.NAMTMONTH8,
T.NAMTMONTH9,T.NAMTMONTH10,T.NAMTMONTH11,T.NAMTMONTH12
FROM FM_ACCOUNTCODE ACC
LEFT JOIN (
SELECT COMPANYID, BUDGETYEAR, ACCOUNTCODEID, ACCOUNTCODE , ACCOUNTCODENAME, 0 AS PLANMAINID, NULL AS PLANMAINNAME,NULL AS PLANMAINCODE,
SUM(NAMTMONTH1) AS NAMTMONTH1,SUM(NAMTMONTH2) AS NAMTMONTH2,SUM(NAMTMONTH3) AS NAMTMONTH3,
SUM(NAMTMONTH4) AS NAMTMONTH4,SUM(NAMTMONTH5) AS NAMTMONTH5,SUM(NAMTMONTH6) AS NAMTMONTH6,
SUM(NAMTMONTH7) AS NAMTMONTH7,SUM(NAMTMONTH8) AS NAMTMONTH8,SUM(NAMTMONTH9) AS NAMTMONTH9,
SUM(NAMTMONTH10) AS NAMTMONTH10,SUM(NAMTMONTH11) AS NAMTMONTH11,SUM(NAMTMONTH12) AS NAMTMONTH12
FROM FM_CURRENTEFFECTIBUDGET WHERE COMPANYID = 6205 AND RECORDSTATUS <> 'INACTIVE'
--AND ISACCOUNTBUDGET = 'Y'
GROUP BY COMPANYID, BUDGETYEAR, ACCOUNTCODEID, ACCOUNTCODE , ACCOUNTCODENAME--,PLANMAINID, PLANMAINNAME, PLANMAINCODE
) T ON ACC.ACCOUNTCODEID = T.ACCOUNTCODEID
START WITH ACC.ACCOUNTCODEID = T.ACCOUNTCODEID
CONNECT BY PRIOR ACC.PARENTCODEID = ACC.ACCOUNTCODEID
ORDER BY ACC.FIRSTORDER, ACC.SECONDORDER
) A
CONNECT BY PRIOR ACCOUNTCODEID = PARENTCODEID
)
GROUP BY ACCOUNTCODEID, PARENTCODEID, ACCOUNTCODE, ACCOUNTCODENAME, FIRSTORDER, SECONDORDER,
COMPANYID, BUDGETYEAR,PLANMAINID, PLANMAINNAME, PLANMAINCODE,ISACCOUNT,ISADD ORDER BY FIRSTORDER, SECONDORDER
此文章僅作爲筆者工作中遇到的問題記錄，同時希望能幫助到其他同學