我是XMl和Oracle SQL的新手。我们有一个包含列的Oracle表，其中一个列是CLOB，其中包含Xml数据。现在我们必须将所有列（包括clob中的列）加载到第二个表中。现在的问题是，当我们解包clob时，如果我们有超过100条记录，则需要花费大量时间。下面的示例显示了解压缩clob时select语句的工作原理。如果我们删除满足20天的日期文件，下面需要花费很多时间。有没有办法可以改善select语句的性能，或者使用ODI 12c来实现这个目标？我希望我的观点很清楚。
SELECT REG_FORM_ID,
FORM_TYPE_CD,
BO_STATUS_CD,
ACCT_ID,
PER_ID,
STATUS_UPD_DTTM,
L2_CI_REG_FORM_REGISTRATION."etpmTIN" etpmTIN,
L2_CI_REG_FORM_REGISTRATION."regType" regType,
L2_CI_REG_FORM_REGISTRATION."effectiveDate" effectiveDate,
L2_CI_REG_FORM_REGISTRATION."legacyTIN" legacyTIN,
L2_CI_REG_FORM_REGISTRATION."businessType" businessType,
L2_CI_REG_FORM_REGISTRATION."otherBusinessType" otherBusinessType,
L2_CI_REG_FORM_REGISTRATION."companyRegNumber" companyRegNumber,
L2_CI_REG_FORM_REGISTRATION."detailforname" detailforname,
L2_CI_REG_FORM_REGISTRATION."detailmaidenName" detailmaidenName,
L2_CI_REG_FORM_REGISTRATION."detailname" detailname,
L2_CI_REG_FORM_REGISTRATION."detailsurname" detailsurname,
L2_CI_REG_FORM_REGISTRATION."detailtitle" detailtitle,
L2_CI_REG_FORM_REGISTRATION."contemailAddress" contemailAddress,
L2_CI_REG_FORM_REGISTRATION."contphoneDetails" contphoneDetails,
L2_CI_REG_FORM_REGISTRATION."contphyAddress1" contphyAddress1,
L2_CI_REG_FORM_REGISTRATION."contphyAddress2" contphyAddress2,
L2_CI_REG_FORM_REGISTRATION."contphyAddress3" contphyAddress3,
L2_CI_REG_FORM_REGISTRATION."contphyAddress4" contphyAddress4,
L2_CI_REG_FORM_REGISTRATION."contphyCity" contphyCity,
L2_CI_REG_FORM_REGISTRATION."contphyCountry" contphyCountry,
L2_CI_REG_FORM_REGISTRATION."contphyCounty" contphyCounty,
L2_CI_REG_FORM_REGISTRATION."contphyPostal" contphyPostal,
L2_CI_REG_FORM_REGISTRATION."contpostAddress1" contpostAddress1,
L2_CI_REG_FORM_REGISTRATION."contpostAddress2" contpostAddress2,
L2_CI_REG_FORM_REGISTRATION."contpostAddress3" contpostAddress3,
L2_CI_REG_FORM_REGISTRATION."contpostAddress4" contpostAddress4,
L2_CI_REG_FORM_REGISTRATION."contpostCity" contpostCity,
L2_CI_REG_FORM_REGISTRATION."contpostCountry" contpostCountry,
L2_CI_REG_FORM_REGISTRATION."contpostCounty" contpostCounty,
L2_CI_REG_FORM_REGISTRATION."contpostNum" contpostNum,
L2_CI_REG_FORM_REGISTRATION."contpostPostal" contpostPostal,
L2_CI_REG_FORM_REGISTRATION."contpostType" contpostType,
L2_CI_REG_FORM_REGISTRATION."accountantName" accountantName,
L2_CI_REG_FORM_REGISTRATION."accountantPerID" accountantPerID,
L2_CI_REG_FORM_REGISTRATION."accountantphoneDetails" accountantphoneDetails,
L2_CI_REG_FORM_REGISTRATION."accountantphyAddress1" accountantphyAddress1,
L2_CI_REG_FORM_REGISTRATION."accountantphyAddress2" accountantphyAddress2,
L2_CI_REG_FORM_REGISTRATION."accountantphyAddress3" accountantphyAddress3,
L2_CI_REG_FORM_REGISTRATION."accountantphyAddress4" accountantphyAddress4,
L2_CI_REG_FORM_REGISTRATION."accountantphyCity" accountantphyCity,
L2_CI_REG_FORM_REGISTRATION."accountantphyCountry" accountantphyCountry,
L2_CI_REG_FORM_REGISTRATION."accountantphyCounty" accountantphyCounty,
L2_CI_REG_FORM_REGISTRATION."accountantphyPostal" accountantphyPostal,
L2_CI_REG_FORM_REGISTRATION."accountantpostAddress1" accountantpostAddress1,
L2_CI_REG_FORM_REGISTRATION."accountantpostAddress2" accountantpostAddress2,
L2_CI_REG_FORM_REGISTRATION."accountantpostAddress3" accountantpostAddress3,
L2_CI_REG_FORM_REGISTRATION."accountantpostAddress4" accountantpostAddress4,
L2_CI_REG_FORM_REGISTRATION."accountantpostCity" accountantpostCity,
L2_CI_REG_FORM_REGISTRATION."accountantpostCountry" accountantpostCountry,
L2_CI_REG_FORM_REGISTRATION."accountantpostCounty" accountantpostCounty,
L2_CI_REG_FORM_REGISTRATION."accountantpostNum" accountantpostNum,
L2_CI_REG_FORM_REGISTRATION."accountantpostPostal" accountantpostPostal,
L2_CI_REG_FORM_REGISTRATION."accountantpostType" accountantpostType,
L2_CI_REG_FORM_REGISTRATION."accountantTIN" accountantTIN,
L2_CI_REG_FORM_REGISTRATION."officeremailAddress" officeremailAddress,
L2_CI_REG_FORM_REGISTRATION."officerName" officerName,
L2_CI_REG_FORM_REGISTRATION."officerPerID" officerPerID,
L2_CI_REG_FORM_REGISTRATION."officerphoneDetails" officerphoneDetails,
L2_CI_REG_FORM_REGISTRATION."officerphyAddress1" officerphyAddress1,
L2_CI_REG_FORM_REGISTRATION."officerphyAddress2" officerphyAddress2,
L2_CI_REG_FORM_REGISTRATION."officerphyAddress3" officerphyAddress3,
L2_CI_REG_FORM_REGISTRATION."officerphyAddress4" officerphyAddress4,
L2_CI_REG_FORM_REGISTRATION."officerphyCity" officerphyCity,
L2_CI_REG_FORM_REGISTRATION."officerphyCountry" officerphyCountry,
L2_CI_REG_FORM_REGISTRATION."officerphyCounty" officerphyCounty,
L2_CI_REG_FORM_REGISTRATION."officerphyPostal" officerphyPostal,
L2_CI_REG_FORM_REGISTRATION."officerpostAddress1" officerpostAddress1,
L2_CI_REG_FORM_REGISTRATION."officerpostAddress2" officerpostAddress2,
L2_CI_REG_FORM_REGISTRATION."officerpostAddress3" officerpostAddress3,
L2_CI_REG_FORM_REGISTRATION."officerpostAddress4" officerpostAddress4,
L2_CI_REG_FORM_REGISTRATION."officerpostCity" officerpostCity,
L2_CI_REG_FORM_REGISTRATION."officerpostCountry" officerpostCountry,
L2_CI_REG_FORM_REGISTRATION."officerpostCounty" officerpostCounty,
L2_CI_REG_FORM_REGISTRATION."officerpostNum" officerpostNum,
L2_CI_REG_FORM_REGISTRATION."officerpostPostal" officerpostPostal,
L2_CI_REG_FORM_REGISTRATION."officerpostType" officerpostType,
L2_CI_REG_FORM_REGISTRATION."officerTIN" officerTIN,
L2_CI_REG_FORM_REGISTRATION."vatEffectiveDate" vatEffectiveDate,
L2_CI_REG_FORM_REGISTRATION."vatReason" vatReason,
L2_CI_REG_FORM_REGISTRATION."vatNewOrAcquired" vatNewOrAcquired,
L2_CI_REG_FORM_REGISTRATION."vatNumber" vatNumber,
L2_CI_REG_FORM_REGISTRATION."payeEffectiveDate" payeEffectiveDate,
L2_CI_REG_FORM_REGISTRATION."employeeNumber" employeeNumber,
L2_CI_REG_FORM_REGISTRATION."minSalary" minSalary,
L2_CI_REG_FORM_REGISTRATION."maxSalary" maxSalary,
L2_CI_REG_FORM_REGISTRATION."nonResSvcProvider" nonResSvcProvider,
L2_CI_REG_FORM_REGISTRATION."nonResServProdDesc" nonResServProdDesc,
L2_CI_REG_FORM_REGISTRATION."resContractors" resContractors,
L2_CI_REG_FORM_REGISTRATION."resContractorsDesc" resContractorsDesc,
L2_CI_REG_FORM_REGISTRATION."vatTaxRoleId" vatTaxRoleId,
L2_CI_REG_FORM_REGISTRATION."soleTaxRoleId" soleTaxRoleId,
L2_CI_REG_FORM_REGISTRATION."corpTaxRoleId" corpTaxRoleId,
L2_CI_REG_FORM_REGISTRATION."payeTaxRoleId" payeTaxRoleId,
L2_CI_REG_FORM_REGISTRATION."whtTaxRoleId" whtTaxRoleId,
L2_CI_REG_FORM_REGISTRATION."approverUserId" approverUserId,
L2_CI_REG_FORM_REGISTRATION."fbtTaxRoleId" fbtTaxRoleId,
L2_CI_REG_FORM_REGISTRATION."correspondenceemailAddress" correspondenceemailAddress,
L2_CI_REG_FORM_REGISTRATION."correspondencephoneDetails" correspondencephoneDetails,
L2_CI_REG_FORM_REGISTRATION."correspondencephyAddress1" correspondencephyAddress1,
L2_CI_REG_FORM_REGISTRATION."correspondencephyAddress2" correspondencephyAddress2,
L2_CI_REG_FORM_REGISTRATION."correspondencephyAddress3" correspondencephyAddress3,
L2_CI_REG_FORM_REGISTRATION."correspondencephyAddress4" correspondencephyAddress4,
L2_CI_REG_FORM_REGISTRATION."correspondencephyCity" correspondencephyCity,
L2_CI_REG_FORM_REGISTRATION."correspondencephyCountry" correspondencephyCountry,
L2_CI_REG_FORM_REGISTRATION."correspondencephyCounty" correspondencephyCounty,
L2_CI_REG_FORM_REGISTRATION."correspondencephyPostal" correspondencephyPostal,
L2_CI_REG_FORM_REGISTRATION."correspondencepostAddress1" correspondencepostAddress1,
L2_CI_REG_FORM_REGISTRATION."correspondencepostAddress2" correspondencepostAddress2,
L2_CI_REG_FORM_REGISTRATION."correspondencepostAddress3" correspondencepostAddress3,
L2_CI_REG_FORM_REGISTRATION."correspondencepostAddress4" correspondencepostAddress4,
L2_CI_REG_FORM_REGISTRATION."correspondencepostCity" correspondencepostCity,
L2_CI_REG_FORM_REGISTRATION."correspondencepostCountry" correspondencepostCountry,
L2_CI_REG_FORM_REGISTRATION."correspondencepostCounty" correspondencepostCounty,
L2_CI_REG_FORM_REGISTRATION."correspondencepostNum" correspondencepostNum,
L2_CI_REG_FORM_REGISTRATION."correspondencepostPostal" correspondencepostPostal,
L2_CI_REG_FORM_REGISTRATION."correspondencepostType" correspondencepostType,
L2_CI_REG_FORM_REGISTRATION."soleidrescountryOfBirth" soleidrescountryOfBirth,
L2_CI_REG_FORM_REGISTRATION."soleidrescountryOfCit" soleidrescountryOfCit,
L2_CI_REG_FORM_REGISTRATION."soleidrescountryOfIssue" soleidrescountryOfIssue,
L2_CI_REG_FORM_REGISTRATION."soleidrescountryOfRes" soleidrescountryOfRes,
L2_CI_REG_FORM_REGISTRATION."soleidresdateOfBirth" soleidresdateOfBirth,
L2_CI_REG_FORM_REGISTRATION."soleidresotherCountryOfIssue" soleidresotherCountryOfIssue,
L2_CI_REG_FORM_REGISTRATION."soleidresotherID" soleidresotherID,
L2_CI_REG_FORM_REGISTRATION."soleidresotherIDNumber" soleidresotherIDNumber,
L2_CI_REG_FORM_REGISTRATION."soleidrespassportExpiryDate" soleidrespassportExpiryDate,
L2_CI_REG_FORM_REGISTRATION."soleidrespassportNum" soleidrespassportNum,
L2_CI_REG_FORM_REGISTRATION."condMarriage" condMarriage,
L2_CI_REG_FORM_REGISTRATION."employer" employer,
L2_CI_REG_FORM_REGISTRATION."maritalStatus" maritalStatus,
L2_CI_REG_FORM_REGISTRATION."spouseMaiden" spouseMaiden,
L2_CI_REG_FORM_REGISTRATION."spouseName" spouseName,
L2_CI_REG_FORM_REGISTRATION."spousePerID" spousePerID,
L2_CI_REG_FORM_REGISTRATION."spouseTIN" spouseTIN,
L2_CI_REG_FORM_REGISTRATION."vatPreviousName" vatPreviousName,
L2_CI_REG_FORM_REGISTRATION."vatPreviousTIN" vatPreviousTIN,
L2_CI_REG_FORM_REGISTRATION."vatPerID" vatPerID,
L2_CI_REG_FORM_REGISTRATION."vatPreviousAddress" vatPreviousAddress,
L2_CI_REG_FORM_FBT."fbtType" fbtType,
L2_CI_REG_FORM_WITHB."whtType" whtType,
L2_CI_REG_FORM_WITHB."whtOther" whtOther ,
L2_CI_REG_FORM_DIRECTOR."directorName" directorName,
L2_CI_REG_FORM_DIRECTOR."directorPerID" directorPerID,
L2_CI_REG_FORM_DIRECTOR."directorTIN" directorTIN,
L2_CI_REG_FORM_TRADENAME."tradeName" tradeName,
L2_CI_REG_FORM_TRADENAME."commencementDate" commencementDate,
L2_CI_REG_FORM_TRADENAME."natureOfBusiness" natureOfBusiness,
L2_CI_REG_FORM_TRADENAME."traderNumber" traderNumber,
LOAD_DATE LAST_UPDATE_DATE,
'I' IND_UPDATE
FROM L1_CI_REG_FORM,
XMLTABLE('REGISTRATION'
PASSING xmltype(L1_CI_REG_FORM.BO_DATA_AREA)
COLUMNS
"etpmTIN" varchar2(16) PATH 'rsnForReg/etpmTIN/asCurrent',
"regType" varchar2(6) PATH 'rsnForReg/regType/asCurrent',
"effectiveDate" DATE PATH 'rsnForReg/effectiveDate/asCurrent',
"legacyTIN" VARCHAR2(16) PATH 'rsnForReg/legacyTIN/asCurrent',
"businessType" varchar2(100) PATH 'detailsSection/businessType/asCurrent',
"otherBusinessType" varchar2(100) PATH 'detailsSection/otherBusinessType/asCurrent',
"detailname" VARCHAR2(100) PATH 'detailsSection/name/asCurrent',
"companyRegNumber" VARCHAR2(100) PATH 'detailsSection/companyRegNumber/asCurrent',
"detailtitle" VARCHAR2(16) PATH 'detailsSection/title/asCurrent',
"detailsurname" VARCHAR2(100) PATH 'detailsSection/surname/asCurrent',
"detailforname" VARCHAR2(100) PATH 'detailsSection/forname/asCurrent',
"detailmaidenName" VARCHAR2(100) PATH 'detailsSection/maidenName/asCurrent',
"contemailAddress" VARCHAR2(100) PATH 'contactSection/emailAddress/asCurrent',
"contphoneDetails" VARCHAR2(100) PATH 'contactSection/phoneDetails/asCurrent',
"contphyAddress1" VARCHAR2(100) PATH 'contactSection/phyAddress1/asCurrent',
"contphyAddress2" VARCHAR2(100) PATH 'contactSection/phyAddress2/asCurrent',
"contphyAddress3" VARCHAR2(100) PATH 'contactSection/phyAddress3/asCurrent',
"contphyAddress4" VARCHAR2(100) PATH 'contactSection/phyAddress4/asCurrent',
"contphyCity" varchar2(100) PATH 'contactSection/phyCity/asCurrent',
"contphyCountry" varchar2(3) PATH 'contactSection/phyCountry/asCurrent',
"contphyCounty" varchar2(100) PATH 'contactSection/phyCounty/asCurrent',
"contphyPostal" VARCHAR2(100) PATH 'contactSection/phyPostal/asCurrent',
"contpostAddress1" VARCHAR2(100) PATH 'contactSection/postAddress1/asCurrent',
"contpostAddress2" VARCHAR2(100) PATH 'contactSection/postAddress2/asCurrent',
"contpostAddress3" VARCHAR2(100) PATH 'contactSection/postAddress3/asCurrent',
"contpostAddress4" VARCHAR2(100) PATH 'contactSection/postAddress4/asCurrent',
"contpostCity" varchar2(100) PATH 'contactSection/postCity/asCurrent',
"contpostCountry" varchar2(3) PATH 'contactSection/postCountry/asCurrent',
"contpostCounty" varchar2(100) PATH 'contactSection/postCounty/asCurrent',
"contpostNum" VARCHAR2(100) PATH 'contactSection/postNum/asCurrent',
"contpostPostal" VARCHAR2(100) PATH 'contactSection/postPostal/asCurrent',
"contpostType" varchar2(6) PATH 'contactSection/postType/asCurrent',
"accountantName" varchar2(100) PATH 'accountantSection/name/asCurrent',
"accountantPerID" varchar2(100) PATH 'accountantSection/PerID/asCurrent',
"accountantphoneDetails" VARCHAR2(100) PATH 'accountantSection/phoneDetails/asCurrent',
"accountantphyAddress1" VARCHAR2(100) PATH 'accountantSection/phyAddress1/asCurrent',
"accountantphyAddress2" VARCHAR2(100) PATH 'accountantSection/phyAddress2/asCurrent',
"accountantphyAddress3" VARCHAR2(100) PATH 'accountantSection/phyAddress3/asCurrent',
"accountantphyAddress4" VARCHAR2(100) PATH 'accountantSection/phyAddress4/asCurrent',
"accountantphyCity" VARCHAR2(100) PATH 'accountantSection/phyCity/asCurrent',
"accountantphyCountry" VARCHAR2(100) PATH 'accountantSection/phyCountry/asCurrent',
"accountantphyCounty" VARCHAR2(100) PATH 'accountantSection/phyCounty/asCurrent',
"accountantphyPostal" VARCHAR2(100) PATH 'accountantSection/phyPostal/asCurrent',
"accountantpostAddress1" VARCHAR2(100) PATH 'accountantSection/postAddress1/asCurrent',
"accountantpostAddress2" VARCHAR2(100) PATH 'accountantSection/postAddress2/asCurrent',
"accountantpostAddress3" VARCHAR2(100) PATH 'accountantSection/postAddress3/asCurrent',
"accountantpostAddress4" VARCHAR2(100) PATH 'accountantSection/postAddress4/asCurrent',
"accountantpostCity" VARCHAR2(100) PATH 'accountantSection/postCity/asCurrent',
"accountantpostCountry" VARCHAR2(100) PATH 'accountantSection/postCountry/asCurrent',
"accountantpostCounty" VARCHAR2(100) PATH 'accountantSection/postCounty/asCurrent',
"accountantpostNum" VARCHAR2(100) PATH 'accountantSection/postNum/asCurrent',
"accountantpostPostal" VARCHAR2(100) PATH 'accountantSection/postPostal/asCurrent',
"accountantpostType" VARCHAR2(100) PATH 'accountantSection/postType/asCurrent',
"accountantTIN" VARCHAR2(100) PATH 'accountantSection/TIN/asCurrent',
"officeremailAddress" VARCHAR2(100) PATH 'officerSection/emailAddress/asCurrent',
"officerName" varchar2(100) PATH 'officerSection/name/asCurrent',
"officerPerID" varchar2(16) PATH 'officerSection/PerID/asCurrent',
"officerphoneDetails" VARCHAR2(100) PATH 'officerSection/phoneDetails/asCurrent',
"officerphyAddress1" VARCHAR2(100) PATH 'officerSection/phyAddress1/asCurrent',
"officerphyAddress2" VARCHAR2(100) PATH 'officerSection/phyAddress2/asCurrent',
"officerphyAddress3" VARCHAR2(100) PATH 'officerSection/phyAddress3/asCurrent',
"officerphyAddress4" VARCHAR2(100) PATH 'officerSection/phyAddress4/asCurrent',
"officerphyCity" VARCHAR2(100) PATH 'officerSection/phyCity/asCurrent',
"officerphyCountry" VARCHAR2(100) PATH 'officerSection/phyCountry/asCurrent',
"officerphyCounty" VARCHAR2(100) PATH 'officerSection/phyCountry/asCurrent',
"officerphyPostal" VARCHAR2(100) PATH 'officerSection/phyPostal/asCurrent',
"officerpostAddress1" VARCHAR2(100) PATH 'officerSection/postAddress1/asCurrent',
"officerpostAddress2" VARCHAR2(100) PATH 'officerSection/postAddress2/asCurrent',
"officerpostAddress3" VARCHAR2(100) PATH 'officerSection/postAddress3/asCurrent',
"officerpostAddress4" VARCHAR2(100) PATH 'officerSection/postAddress4/asCurrent',
"officerpostCity" VARCHAR2(100) PATH 'officerSection/postCity/asCurrent',
"officerpostCountry" VARCHAR2(100) PATH 'officerSection/postCountry/asCurrent',
"officerpostCounty" VARCHAR2(100) PATH 'officerSection/postCounty/asCurrent',
"officerpostNum" VARCHAR2(100) PATH 'officerSection/postNum/asCurrent',
"officerpostPostal" VARCHAR2(100) PATH 'officerSection/postPostal/asCurrent',
"officerpostType" VARCHAR2(100) PATH 'officerSection/postType/asCurrent',
"officerTIN" varchar2(16) PATH 'officerSection/TIN/asCurrent',
"vatEffectiveDate" DATE PATH 'vatSection/vatEffectiveDate/asCurrent',
"vatReason" varchar2(100) PATH 'vatSection/vatReason/asCurrent',
"vatNewOrAcquired" varchar2(16) PATH 'vatSection/vatNewOrAcquired/asCurrent',
"vatNumber" varchar2(16) PATH 'vatSection/vatNumber/asCurrent',
"payeEffectiveDate" DATE PATH 'payeSection/payeEffectiveDate/asCurrent',
"employeeNumber" varchar2(12) PATH 'payeSection/employeeNumber/asCurrent',
"minSalary" NUMBER(12,0) PATH 'payeSection/minSalary/asCurrent',
"maxSalary" NUMBER(12,0) PATH 'payeSection/maxSalary/asCurrent',
"nonResSvcProvider" varchar2(16) PATH 'whtSection/nonResSvcProvider/asCurrent',
"nonResServProdDesc" varchar2(100) PATH 'whtSection/nonResServProdDesc/asCurrent',
"resContractors" varchar2(16) PATH 'whtSection/resContractors/asCurrent',
"resContractorsDesc" varchar2(100) PATH 'whtSection/resContractorsDesc/asCurrent',
"vatTaxRoleId" VARCHAR2(16) PATH 'maintenance/vatTaxRoleId/asCurrent',
"soleTaxRoleId" varchar2(12) PATH 'maintenance/soleTaxRoleId/asCurrent',
"corpTaxRoleId" VARCHAR2(16) PATH 'maintenance/corpTaxRoleId/asCurrent',
"payeTaxRoleId" VARCHAR2(16) PATH 'maintenance/payeTaxRoleId/asCurrent',
"whtTaxRoleId" VARCHAR2(16) PATH 'maintenance/whtTaxRoleId/asCurrent',
"approverUserId" VARCHAR2(100) PATH 'maintenance/approverUserId/asCurrent',
"fbtTaxRoleId" VARCHAR2(16) PATH 'maintenance/fbtTaxRoleId/asCurrent',
"correspondenceemailAddress" VARCHAR2(100) PATH 'soleCorrespondenceSection/emailAddress/asCurrent',
"correspondencephoneDetails" VARCHAR2(100) PATH 'soleCorrespondenceSection/phoneDetails/asCurrent',
"correspondencephyAddress1" VARCHAR2(100) PATH 'soleCorrespondenceSection/phyAddress1/asCurrent',
"correspondencephyAddress2" VARCHAR2(100) PATH 'soleCorrespondenceSection/phyAddress2/asCurrent',
"correspondencephyAddress3" VARCHAR2(100) PATH 'soleCorrespondenceSection/phyAddress3/asCurrent',
"correspondencephyAddress4" VARCHAR2(100) PATH 'soleCorrespondenceSection/phyAddress4/asCurrent',
"correspondencephyCity" VARCHAR2(100) PATH 'soleCorrespondenceSection/phyCity/asCurrent',
"correspondencephyCountry" VARCHAR2(100) PATH 'soleCorrespondenceSection/phyCountry/asCurrent',
"correspondencephyCounty" VARCHAR2(100) PATH 'soleCorrespondenceSection/phyCounty/asCurrent',
"correspondencephyPostal" VARCHAR2(100) PATH 'soleCorrespondenceSection/phyPostal/asCurrent',
"correspondencepostAddress1" VARCHAR2(100) PATH 'soleCorrespondenceSection/postAddress1/asCurrent',
"correspondencepostAddress2" VARCHAR2(100) PATH 'soleCorrespondenceSection/postAddress2/asCurrent',
"correspondencepostAddress3" VARCHAR2(100) PATH 'soleCorrespondenceSection/postAddress3/asCurrent',
"correspondencepostAddress4" VARCHAR2(100) PATH 'soleCorrespondenceSection/postAddress4/asCurrent',
"correspondencepostCity" VARCHAR2(100) PATH 'soleCorrespondenceSection/postCity/asCurrent',
"correspondencepostCountry" VARCHAR2(100) PATH 'soleCorrespondenceSection/postCountry/asCurrent',
"correspondencepostCounty" VARCHAR2(100) PATH 'soleCorrespondenceSection/postCounty/asCurrent',
"correspondencepostNum" VARCHAR2(100) PATH 'soleCorrespondenceSection/postNum/asCurrent',
"correspondencepostPostal" VARCHAR2(100) PATH 'soleCorrespondenceSection/postPostal/asCurrent',
"correspondencepostType" VARCHAR2(100) PATH 'soleCorrespondenceSection/postType/asCurrent',
"soleidrescountryOfBirth" VARCHAR2(100) PATH 'soleIdResSection/countryOfBirth/asCurrent',
"soleidrescountryOfCit" VARCHAR2(100) PATH 'soleIdResSection/countryOfCit/asCurrent',
"soleidrescountryOfIssue" VARCHAR2(100) PATH 'soleIdResSection/countryOfIssue/asCurrent',
"soleidrescountryOfRes" VARCHAR2(100) PATH 'soleIdResSection/countryOfRes/asCurrent',
"soleidresdateOfBirth" DATE PATH 'soleIdResSection/dateOfBirth/asCurrent',
"soleidresotherCountryOfIssue" VARCHAR2(100) PATH 'soleIdResSection/otherCountryOfIssue/asCurrent',
"soleidresotherID" VARCHAR2(100) PATH 'soleIdResSection/otherID/asCurrent',
"soleidresotherIDNumber" VARCHAR2(100) PATH 'soleIdResSection/otherIDNumber/asCurrent',
"soleidrespassportExpiryDate" DATE PATH 'soleIdResSection/passportExpiryDate/asCurrent',
"soleidrespassportNum" VARCHAR2(100) PATH 'soleIdResSection/passportNum/asCurrent',
"condMarriage" VARCHAR2(100) PATH 'soleMiscSection/condMarriage/asCurrent',
"employer" VARCHAR2(100) PATH 'soleMiscSection/employer/asCurrent',
"maritalStatus" VARCHAR2(100) PATH 'soleMiscSection/maritalStatus/asCurrent',
"spouseMaiden" VARCHAR2(100) PATH 'soleMiscSection/spouseMaiden/asCurrent',
"spouseName" VARCHAR2(100) PATH 'soleMiscSection/spouseName/asCurrent',
"spousePerID" VARCHAR2(100) PATH 'soleMiscSection/spousePerID/asCurrent',
"spouseTIN" VARCHAR2(100) PATH 'soleMiscSection/spouseTIN/asCurrent',
"vatPreviousName" VARCHAR2(100) PATH 'vatPreviousSection/vatPreviousName/asCurrent',
"vatPreviousTIN" VARCHAR2(100) PATH 'vatPreviousSection/vatPreviousTIN/asCurrent',
"vatPerID" VARCHAR2(100) PATH 'vatPreviousSection/vatPerID/asCurrent',
"vatPreviousAddress" VARCHAR2(100) PATH 'vatPreviousSection/vatPreviousAddress/asCurrent')
L2_CI_REG_FORM_REGISTRATION,
XMLTable(
'for $i in REGISTRATION/fbtSection/fbtDetails/fbtDetailsList/fbtType
return <row>
{
$i
}
</row>'
PASSING xmltype(L1_CI_REG_FORM.BO_DATA_AREA)
COLUMNS "fbtType" VARCHAR2(100) PATH 'fbtType/asCurrent'
)
L2_CI_REG_FORM_FBT,
XMLTable(
'for $i in REGISTRATION/whtSection/whtTypeDetails/whtTypeDetailsList/whtType
return <row>
{
$i,
$i/following-sibling::whtOther[1]
}
</row>'
PASSING xmltype(L1_CI_REG_FORM.BO_DATA_AREA)
COLUMNS
"whtType" varchar2(16) PATH 'whtType/asCurrent',
"whtOther" varchar2(100) PATH 'whtOther/asCurrent')
L2_CI_REG_FORM_WITHB,
XMLTable(
'for $i in REGISTRATION/directorSection/directorGroup/directorGroupList/directorName
return <row>
{
$i,
$i/following-sibling::directorPerID[1],
$i/following-sibling::directorTIN[1]
}
</row>'
PASSING xmltype(L1_CI_REG_FORM.BO_DATA_AREA)
COLUMNS
"directorName" varchar2(16) PATH 'directorName/asCurrent',
"directorPerID" varchar2(100) PATH 'directorPerID/asCurrent',
"directorTIN" varchar2(100) PATH 'directorTIN/asCurrent')
L2_CI_REG_FORM_DIRECTOR,
XMLTable(
'for $i in REGISTRATION/tradenameSection/tradeNameDetails/tradeNameDetailsList/tradeName
return <row>
{
$i,
$i/following-sibling::commencementDate[1],
$i/following-sibling::natureOfBusiness[1],
$i/following-sibling::traderNumber[1]
}
</row>'
PASSING xmltype(L1_CI_REG_FORM.BO_DATA_AREA)
COLUMNS
"tradeName" VARCHAR2(100) PATH 'tradeName/asCurrent',
"commencementDate" DATE PATH 'commencementDate/asCurrent',
"natureOfBusiness" VARCHAR2(100) PATH 'natureOfBusiness/asCurrent',
"traderNumber" VARCHAR2(100) PATH 'traderNumber/asCurrent')
L2_CI_REG_FORM_TRADENAME
WHERE (1=1) AND TRIM(FORM_TYPE_CD) = 'BUSREGFORM' AND STATUS_UPD_DTTM < '1/SEP/13'
;
答案 0 :(得分：0)
您可以将select语句实现为带有＆＃34; bulk_collect＆＃34;的游标。阅读，为了一次只处理一小部分有限数量的行而不是一次处理查询的全部结果，寻求减少资源密集。
除此之外，考虑到使用索引的列上的函数排除索引（TRIM（FORM_TYPE_CD）），我不知道此列（FORM_TYPE_CD）是否有索引，I＆＃39 ;我只是指出它，所以你要确保它不会影响你的过程。