2011年1月31日更新
我认为我正在违反数据库限制。 GROUP BY表达式
并且所有非干净的聚合函数可能已超过单个
数据库块。
见http://download.oracle.com/docs/cd/B19306_01/server.102/b14237/limits003.htm
原帖：
这是在Oracle数据库10g企业版10.2.0.1.0版 - Prod。
以下插入不会返回真正的MAX（）值
如果我有两条记录，其中matchKey是相同的，一个是
使用contribP NULL值，另一个使用非NULL值
有时，MAX（）返回的值是NULL值。
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;
如果我按如下方式构建索引并提供CBO提示
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;
这使得MAX（）表现正常。
我需要添加15个额外的列并更改索引
小问题
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;
给出
ORA-01793：索引列的最大数量为32
First MAX（）不适用于大型列集，其次是索引+ CBO补丁 导致指数限制。
有什么建议吗？
答案 0 :(得分：2)
如果您的结果不正确，那显然是Oracle的错误。您是否已向Oracle Support记录了支持请求和/或确定了您遇到的错误（我猜这是解决方法的来源）？
如果您使用的是10.2.0.1，您是否尝试过应用最新的补丁集（最有可能是10.2.0.4）？最初的10.2版本和终端10.2版本之间存在许多错误修复。如果这是Oracle修复的错误，可能还有一个一次性补丁，尽管该补丁可能需要安装最新的补丁集。
答案 1 :(得分：0)
您是否尝试过像这样编写查询的SELECT部分。它应该返回相同的结果。
它分两步工作：首先计算所需的最小值和最大值，然后进行一些NULL值替换。 （您的CASE语句似乎过于复杂，因为您没有考虑过Oracle中的空字符串和NULL是相同的。）
我非常想知道内部SELECT是否已经错误的最大结果。
SELECT
matchKey as matchKey ,
NVL(contributionP ,0 ) as contributionP ,
NVL(stimulusContributionP ,0 ) as stimulusContributionP ,
NVL(contributionC ,0 ) as contributionC ,
NVL(ageMultiplier ,0 ) as ageMultiplier ,
NVL(rateTableIdP ,0 ) as rateTableIdP ,
NVL(rateTableIdC ,0 ) as rateTableIdC ,
NVL(accountNbrP ,0 ) as accountNbrP ,
NVL(accountNbrC ,0 ) as accountNbrC ,
NVL(commissionExpenseAccount ,0 ) as commissionExpenseAccount ,
NVL(commissionReceivableAccount ,0 ) as commissionReceivableAccount ,
NVL(commissionType ,0 ) as commissionType ,
NVL(commission ,0 ) as commission ,
NVL(pmPm ,0 ) as pmPm ,
NVL(fee ,0 ) as fee ,
NVL(planAgeGroupIdP ,0 ) as planAgeGroupIdP ,
NVL(planAgeGroupIdC ,0 ) as planAgeGroupIdC ,
NVL(rafP ,0 ) as rafP ,
NVL(rafC ,0 ) as rafC ,
NVL(nbrEmployeesRafP ,0 ) as nbrEmployeesRafP ,
NVL(nbrEmployeesRafC ,0 ) as nbrEmployeesRafC ,
CASE
WHEN maxContractId = 'No Contract No' THEN minContractId
ELSE maxContractId
END as contractId ,
NVL(basePlanId ,0 ) as basePlanId ,
CASE
WHEN maxGroupOrPolicyNumber = 'No Contract No' THEN minGroupOrPolicyNumber
ELSE maxGroupOrPolicyNumber
END as groupOrPolicyNumber ,
CASE
WHEN maxPlanCoverageDescription = 'No Contract No' THEN minPlanCoverageDescription
ELSE maxPlanCoverageDescription
END as planCoverageDescription ,
CASE
WHEN maxCobraGopn = 'No Contract No' THEN minCobraGopn
ELSE maxCobraGopn
END as cobraGopn ,
CASE
WHEN maxCobraPcd = 'No Contract No' THEN minCobraPcd
ELSE maxCobraPcd
END as cobraPcd ,
CASE
WHEN maxCobraCid = 'No Contract No' THEN minCobraCid
ELSE maxCobraCid
END as cobraCid ,
benefitId as benefitId ,
NULL as insuranceStart ,
NULL as insuranceEnd ,
NULL as categoryId
FROM (
SELECT
matchKey as matchKey ,
MAX(contributionP ) as contributionP ,
MAX(stimulusContributionP ) as stimulusContributionP ,
MAX(contributionC ) as contributionC ,
MAX(ageMultiplier ) as ageMultiplier ,
MAX(rateTableIdP ) as rateTableIdP ,
MAX(rateTableIdC ) as rateTableIdC ,
MAX(accountNbrP ) as accountNbrP ,
MAX(accountNbrC ) as accountNbrC ,
MAX(commissionExpenseAccount ) as commissionExpenseAccount ,
MAX(commissionReceivableAccount ) as commissionReceivableAccount ,
MAX(commissionType ) as commissionType ,
MAX(commission ) as commission ,
MAX(pmPm ) as pmPm ,
MAX(fee ) as fee ,
MAX(planAgeGroupIdP ) as planAgeGroupIdP ,
MAX(planAgeGroupIdC ) as planAgeGroupIdC ,
MAX(rafP ) as rafP ,
MAX(rafC ) as rafC ,
MAX(nbrEmployeesRafP ) as nbrEmployeesRafP ,
MAX(nbrEmployeesRafC ) as nbrEmployeesRafC ,
MIN(contractId ) as minContractId ,
MAX(contractId ) as maxContractId ,
MAX(basePlanId ) as basePlanId ,
MIN(groupOrPolicyNumber ) as minGroupOrPolicyNumber ,
MAX(groupOrPolicyNumber ) as maxGroupOrPolicyNumber ,
MIN(planCoverageDescription ) as minPlanCoverageDescription ,
MAX(planCoverageDescription ) as maxPlanCoverageDescription ,
MIN(cobraGopn ) as minCobraGopn ,
MAX(cobraGopn ) as maxCobraGopn ,
MIN(cobraPcd ) as mincobraPcd ,
MAX(cobraPcd ) as maxcobraPcd ,
MIN(cobraCid ) as minCobraCid ,
MAX(cobraCid ) as maxCobraCid ,
MAX(benefitId ) as benefitId
FROM meCostingXPrePrePre
GROUP BY matchKey
);
答案 2 :(得分：0)
好的，把工作分成两部分可以得到我需要的东西：
INSERT /*+ APPEND */ INTO meCostingXPrePreFirstHalf(
matchKey ,
contributionP ,
stimulusContributionP ,
contributionC ,
ageMultiplier ,
rateTableIdP ,
rateTableIdC ,
accountNbrP ,
accountNbrC ,
commissionExpenseAccount ,
commissionReceivableAccount ,
commissionType ,
commission ,
pmPm ,
fee ,
planAgeGroupIdP ,
planAgeGroupIdC )
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
FROM meCostingXPrePrePre
GROUP BY matchKey;
/* No commit yet. */
INSERT /*+ APPEND */ INTO meCostingXPrePreOtherHalf(
matchKey ,
rafP ,
rafC ,
nbrEmployeesRafP ,
nbrEmployeesRafC ,
contractId ,
basePlanId ,
groupOrPolicyNumber ,
planCoverageDescription ,
cobraGopn ,
cobraPcd ,
cobraCid ,
benefitId ,
insuranceStart ,
insuranceEnd ,
categoryId )
SELECT
matchKey as matchKey ,
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
FROM meCostingXPrePrePre
GROUP BY matchKey;
/* No commit yet. */
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
f.matchKey as matchKey ,
f.contributionP as contributionP ,
f.stimulusContributionP as stimulusContributionP ,
f.contributionC as contributionC ,
f.ageMultiplier as ageMultiplier ,
f.rateTableIdP as rateTableIdP ,
f.rateTableIdC as rateTableIdC ,
f.accountNbrP as accountNbrP ,
f.accountNbrC as accountNbrC ,
f.commissionExpenseAccount as commissionExpenseAccount ,
f.commissionReceivableAccount as commissionReceivableAccount ,
f.commissionType as commissionType ,
f.commission as commission ,
f.pmPm as pmPm ,
f.fee as fee ,
f.planAgeGroupIdP as planAgeGroupIdP ,
f.planAgeGroupIdC as planAgeGroupIdC ,
o.rafP as rafP ,
o.rafC as rafC ,
o.nbrEmployeesRafP as nbrEmployeesRafP ,
o.nbrEmployeesRafC as nbrEmployeesRafC ,
o.contractId as contractId ,
o.basePlanId as basePlanId ,
o.groupOrPolicyNumber as groupOrPolicyNumber ,
o.planCoverageDescription as planCoverageDescription ,
o.cobraGopn as cobraGopn ,
o.cobraPcd as cobraPcd ,
o.cobraCid as cobraCid ,
o.benefitId as benefitId ,
o.insuranceStart as insuranceStart ,
o.insuranceEnd as insuranceEnd ,
o.categoryId as categoryId ,
NULL as insuranceStart ,
NULL as insuranceEnd ,
NULL as categoryId
FROM
meCostingXPrePreFirstHalf f
INNER JOIN meCostingXPrePreOtherHalf o
ON f.matchKey = o.matchKey;
/* Now it is safe to commit. */
COMMIT;