文档解释ORA-40390:PMMLDerivedFieldmusthaveauniquenamespecified:stringCause:ADerivedFielddidnotreferenceanotherdefinedfield.Action:ADerivedFielddidnothaveauniquename...

文档解释ORA-29506:invalidqueryderivedfromUSINGclauseCause:TheUSINGclausedidnotformavalidquery.Action:CorrecttheUSINGclause.？ORA-29506是Oracle数据库错误代码，指示使用子句派生的查询无效。此错...

文档解释ORA-38441:SystemcouldnotderivethelistofSTOREDandINDEXEDattributes.Cause:Theattributesetwascreatedwithoutdefaultindexparameters.Action:Specifythedefaultindex...

文档解释ORA-40391:PMMLDerivedFielddependsonaundefinedfield:stringCause:ADerivedFieldmayonlyreferenceotherdefinedfields.Action:MakesureDerivedFieldsreferenceotherdef...

文档解释ORA-38477:attributesetcannotbederivedfromanevolvedtypeorasubtype.Cause:AnattemptwasmadetocreateanattributesetfromanevolvedADTorasubtype.Action:TheADTusedfor...

文档解释ORA-29508:queryderivedfromUSINGclausedidnotselectavalueoftypestringCause:TheUSINGclausedidnotformaquerythatselectsavalueofthetypespecifiedbythetermfollowing...

文档解释ORA-29507:queryderivedfromUSINGclausefoundzeroormanyrowsCause:TheUSINGclausedefinedaquerythateitherdidnotreturnanyvalues,orreturnedmorethanonevalue.Action:C...

文档解释ORA-07581:spstp:cannotderiveSIDfromunexpectedprocessnameCause:AbackgroundprocessdidnothavenameofcorrectformAction:Ifthejobnamewaschanged,restoreit,otherwise...

文档解释ORA-02265:cannotderivethedatatypeofthereferencingcolumnCause:Thedatatypeofthereferencedcolumnisnotdefinedasyet.Action:Makesurethatthedatatypeofthereferenced...

当多次重构工程造成代码没有错误却编译失败时，可以尝试删除DerivedData目录。DerivedData目录是Xcode的编译缓存，路径是~/Library/Developer/Xcode/DerivedData。具体操作可以这样：首先在“Finder”的的菜单上选择“前往&rdq...

SELECTcount(*)from(SELECTprovince_codeasarea_id,count(*)fromt_cas_rural_selectedGROUPBYprovince_codeUNIONallSELECTcity_codeasarea_id,COUNT(*)fromt_cas_rural_sel...