2011 年 1 月 31 日更新
私はDBの制限に逆らっていると思います。GROUP BY 式
とすべての不明確な集計関数が、1 つの
データベース ブロックを超えている可能性があります。http://download.oracle.com/docs/cd/B19306_01/server.102/b14237/limits003.htm
を参照してください。
元の投稿:
これは、Oracle Database 10g Enterprise Edition Release 10.2.0.1.0 - Prod にあります。
matchKey が同じ 2 つのレコード(
contributionP NULL 値を持つレコードと NULL 以外の値を持つレコード) がある場合、次の挿入は真の MAX() 値を返しません。
MAX() によって返される値が NULL 値である場合があります。
INSERT /*+ APPEND */ INTO meCostingXPrePre(
matchKey ,
contributionP ,
stimulusContributionP ,
contributionC ,
ageMultiplier ,
rateTableIdP ,
rateTableIdC ,
accountNbrP ,
accountNbrC ,
commissionExpenseAccount ,
commissionReceivableAccount ,
commissionType ,
commission ,
pmPm ,
fee ,
planAgeGroupIdP ,
planAgeGroupIdC ,
rafP ,
rafC ,
nbrEmployeesRafP ,
nbrEmployeesRafC ,
contractId ,
basePlanId ,
groupOrPolicyNumber ,
planCoverageDescription ,
cobraGopn ,
cobraPcd ,
cobraCid ,
benefitId ,
insuranceStart ,
insuranceEnd ,
categoryId )
SELECT
matchKey as matchKey ,
MAX(NVL(contributionP ,0 )) as contributionP ,
MAX(NVL(stimulusContributionP ,0 )) as stimulusContributionP ,
MAX(NVL(contributionC ,0 )) as contributionC ,
MAX(NVL(ageMultiplier ,0 )) as ageMultiplier ,
MAX(NVL(rateTableIdP ,0 )) as rateTableIdP ,
MAX(NVL(rateTableIdC ,0 )) as rateTableIdC ,
MAX(NVL(accountNbrP ,0 )) as accountNbrP ,
MAX(NVL(accountNbrC ,0 )) as accountNbrC ,
MAX(NVL(commissionExpenseAccount ,0 )) as commissionExpenseAccount ,
MAX(NVL(commissionReceivableAccount ,0 )) as commissionReceivableAccount ,
MAX(NVL(commissionType ,0 )) as commissionType ,
MAX(NVL(commission ,0 )) as commission ,
MAX(NVL(pmPm ,0 )) as pmPm ,
MAX(NVL(fee ,0 )) as fee ,
MAX(NVL(planAgeGroupIdP ,0 )) as planAgeGroupIdP ,
MAX(NVL(planAgeGroupIdC ,0 )) as planAgeGroupIdC ,
MAX(NVL(rafP ,0 )) as rafP ,
MAX(NVL(rafC ,0 )) as rafC ,
MAX(NVL(nbrEmployeesRafP ,0 )) as nbrEmployeesRafP ,
MAX(NVL(nbrEmployeesRafC ,0 )) as nbrEmployeesRafC ,
CASE WHEN MAX(contractId) IS NOT NULL AND
MIN(contractId) IS NOT NULL AND
MAX(contractId) != MIN(contractId) THEN
CASE WHEN MAX(contractId) = 'No Contract No' THEN
MIN(contractId)
WHEN MIN(contractId) = 'No Contract No' THEN
MAX(contractId)
ELSE
MAX(contractId)
END
ELSE
MAX(contractId)
END as contractId ,
MAX(NVL(basePlanId ,0 )) as basePlanId ,
CASE WHEN MAX(groupOrPolicyNumber) IS NOT NULL AND
MIN(groupOrPolicyNumber) IS NOT NULL AND
MAX(groupOrPolicyNumber) != MIN(groupOrPolicyNumber) THEN
CASE WHEN MAX(groupOrPolicyNumber) = 'No Contract No' THEN
MIN(groupOrPolicyNumber)
WHEN MIN(groupOrPolicyNumber) = 'No Contract No' THEN
MAX(groupOrPolicyNumber)
ELSE
MAX(groupOrPolicyNumber)
END
ELSE
MAX(groupOrPolicyNumber)
END as groupOrPolicyNumber ,
CASE WHEN MAX(planCoverageDescription) IS NOT NULL AND
MIN(planCoverageDescription) IS NOT NULL AND
MAX(planCoverageDescription) != MIN(planCoverageDescription) THEN
CASE WHEN MAX(planCoverageDescription) = 'No Contract No' THEN
MIN(planCoverageDescription)
WHEN MIN(planCoverageDescription) = 'No Contract No' THEN
MAX(planCoverageDescription)
ELSE
MAX(planCoverageDescription)
END
ELSE
MAX(planCoverageDescription)
END as planCoverageDescription ,
CASE WHEN MAX(cobraGopn) IS NOT NULL AND
MIN(cobraGopn) IS NOT NULL AND
MAX(cobraGopn) != MIN(cobraGopn) THEN
CASE WHEN MAX(cobraGopn) = 'No Contract No' THEN
MIN(cobraGopn)
WHEN MIN(cobraGopn) = 'No Contract No' THEN
MAX(cobraGopn)
ELSE
MAX(cobraGopn)
END
ELSE
MAX(cobraGopn)
END as cobraGopn ,
CASE WHEN MAX(cobraPcd) IS NOT NULL AND
MIN(cobraPcd) IS NOT NULL AND
MAX(cobraPcd) != MIN(cobraPcd) THEN
CASE WHEN MAX(cobraPcd) = 'No Contract No' THEN
MIN(cobraPcd)
WHEN MIN(cobraPcd) = 'No Contract No' THEN
MAX(cobraPcd)
ELSE
MAX(cobraPcd)
END
ELSE
MAX(cobraPcd)
END as cobraPcd ,
CASE WHEN MAX(cobraCid) IS NOT NULL AND
MIN(cobraCid) IS NOT NULL AND
MAX(cobraCid) != MIN(cobraCid) THEN
CASE WHEN MAX(cobraCid) = 'No Contract No' THEN
MIN(cobraCid)
WHEN MIN(cobraCid) = 'No Contract No' THEN
MAX(cobraCid)
ELSE
MAX(cobraCid)
END
ELSE
MAX(cobraCid)
END as cobraCid ,
MAX(benefitId ) as benefitId ,
NULL as insuranceStart ,
NULL as insuranceEnd ,
NULL as categoryId
FROM meCostingXPrePrePre
GROUP BY matchKey;
次のようにインデックスを作成し、CBO のヒントを与える場合
CREATE INDEX C$MECOSTINGXPREPREPRE$MULTI0 ON MECOSTINGXPREPREPRE
(MATCHKEY, CONTRIBUTIONP, STIMULUSCONTRIBUTIONP, CONTRIBUTIONC, AGEMULTIPLIER,
RATETABLEIDP, RATETABLEIDC, ACCOUNTNBRP, ACCOUNTNBRC, COMMISSIONEXPENSEACCOUNT,
COMMISSIONRECEIVABLEACCOUNT, COMMISSIONTYPE, COMMISSION, PMPM, FEE,
PLANAGEGROUPIDP, PLANAGEGROUPIDC, RAFP, RAFC,
NBREMPLOYEESRAFP, NBREMPLOYEESRAFC, CONTRACTID, BASEPLANID, GROUPORPOLICYNUMBER,
PLANCOVERAGEDESCRIPTION, COBRAGOPN, COBRAPCD, COBRACID, BENEFITID)
NOLOGGING
TABLESPACE INDX
NOPARALLEL;
INSERT /*+ APPEND */ INTO meCostingXPrePre(
...)
SELECT /*+ INDEX(meCostingXPrePrePre c$mecostingxpreprepre$multi0) */
...
FROM meCostingXPrePrePre
GROUP BY matchKey;
これにより、MAX() が正しく動作します。
15 列を追加し、インデックスを変更する必要があります
小さな問題
CREATE INDEX C$MECOSTINGXPREPREPRE$MULTI0 ON MECOSTINGXPREPREPRE
(MATCHKEY, CONTRIBUTIONP, STIMULUSCONTRIBUTIONP, CONTRIBUTIONC, AGEMULTIPLIER,
RATETABLEIDP, RATETABLEIDC, ACCOUNTNBRP, ACCOUNTNBRC, COMMISSIONEXPENSEACCOUNT,
COMMISSIONRECEIVABLEACCOUNT, COMMISSIONTYPE, COMMISSION, PMPM, FEE,
PLANAGEGROUPIDP, PLANAGEGROUPIDC, ADDRESSONEP, ADDRESSONEC, ADDRESSTWOP,
ADDRESSTWOC, CITYP, CITYC, STATEP, STATEC, ZIPFULLP, ZIPFULLC, RAFP, RAFC,
NBREMPLOYEESRAFP, NBREMPLOYEESRAFC, CONTRACTID, BASEPLANID, GROUPORPOLICYNUMBER,
PLANCOVERAGEDESCRIPTION, COBRAGOPN, COBRAPCD, COBRACID, BENEFITID)
NOLOGGING
TABLESPACE INDX
NOPARALLEL;
ORA- 01793
を返します: インデックス列の最大数は 32 です
最初の MAX() は大きな列セットでは機能しません。次に、index+CBO パッチ
がインデックスの制限につながります。
助言がありますか？