derived主题的文章列表，还有derived的技术要点_第1页

ORA-40390: PMML DerivedField must have a unique name specified: string

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

IT技术学习 ·2023-07-26

ORA-29506: invalid query derived from USING clause

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...

IT技术学习 ·2023-07-19

ORA-40391: PMML DerivedField depends on a undefined field: string

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

IT技术学习 ·2023-07-16

ORA-38477: attribute set cannot be derived from an evolved type or a subtype.

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

IT技术学习 ·2023-07-16

ORA-29508: query derived from USING clause did not select a value of type string

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

IT技术学习 ·2023-07-09

ORA-29507: query derived from USING clause found zero or many rows

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

IT技术学习 ·2023-07-08

清除编译缓存DerivedDate

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...

代码星球 ·2020-10-22

mysql union出错: "Every derived table must have its own alias"

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

代码星球 ·2020-04-16