Unde主题的文章列表，还有Unde的技术要点_第1页

Uncaught TypeError: Cannot read properties of undefined (rea

vue页面UncaughtTypeError:Cannotreadpropertiesof undefined (reading‘install’)报错，页面全空白。然后发现是自己写的指令全局引用的原因使用了export导出export{preventReClick}复制代码...

开发笔记 ·2024-09-29

null和undefined的区别

null和undefined都是js中的特殊值，表示缺失或未定义的值。null表示一个空对象指针，即该变量本应该指向一个对象，但是现在没有指向任何一个对象。例如：varobj=null;undefined表示一个未定义的值，即该变量没有被赋值或者被赋值为undefined。例如：varx;console.log(x);...

开发笔记 ·2024-07-02

ORA-39033: Data cannot be filtered under the direct path access method.

文档解释ORA-39033:Datacannotbefilteredunderthedirectpathaccessmethod.Cause:Theuserspecifiedthatthedataaccessmethodforthejobwasdirectwhichprecludestheuseofcertaindat...

IT技术学习 ·2023-07-28

ORA-39234: Data cannot be remapped under the direct path access method.

文档解释ORA-39234:Datacannotberemappedunderthedirectpathaccessmethod.Cause:Dataremappingwasrequestedonajobthatrequiresthedirectpathaccessmethod.Dataremappingcanonly...

IT技术学习 ·2023-07-28

ORA-12539: TNS:buffer over- or under-flow

文档解释ORA-12539:TNS:bufferover-orunder-flowCause:Buffertoosmallforincomingdataortoolargeforoutgoingdata.Action:Thisrestriction(whichisassociatedwithCONNECTDATA)is...

IT技术学习 ·2023-07-27

ORA-53414: The DICOM object contains undefined values string.

文档解释ORA-53414:TheDICOMobjectcontainsundefinedvaluesstring.Cause:TheDICOMobjecthadattributevaluesthatwereexpectedtobepartofthedatamodel.Action:DetermineiftheDICO...

IT技术学习 ·2023-07-26

ORA-30735: cannot create multiple subtables of the same type under a supertable

文档解释ORA-30735:cannotcreatemultiplesubtablesofthesametypeunderasupertableCause:Anattemptwasmadetocreateunderasupertable(superview),asubtable(subview)ofthesametyp...

IT技术学习 ·2023-07-26

ORA-21528: internal error, image could not be understood

文档解释ORA-21528:internalerror,imagecouldnotbeunderstoodCause:Theformatoftheimagepassedtothepicklerisincorrectandcannotbeunderstood.Action:ContactOracleSupportServ...

IT技术学习 ·2023-07-26

ORA-29901: function underlying operator binding does not exist

文档解释ORA-29901:functionunderlyingoperatorbindingdoesnotexistCause:Thefunctionunderlyingtheoperatorbindingdoesnotexist.Action:Ensurethatthefunctioncorrespondingto...

IT技术学习 ·2023-07-26

ORA-14187: partitioning method for LOCAL index is inconsistent with that of the underlying table

文档解释ORA-14187:partitioningmethodforLOCALindexisinconsistentwiththatoftheunderlyingtableCause:UserattemptedtocreateaLOCALpartitionedindexthatisnotequi-partitione...

IT技术学习 ·2023-07-26

ORA-46112: Duplicate security class name string under targetnamespace string

文档解释ORA-46112:DuplicatesecurityclassnamestringundertargetnamespacestringCause:Thesecurityclassnameunderthetargetnamespcewasalsousedforanothersecurityclass.Actio...

IT技术学习 ·2023-07-23

ORA-41103: Only the designated Cluster Director: string can undesignate itself.

文档解释ORA-41103:OnlythedesignatedClusterDirector:stringcanundesignateitself.Cause:AnattemptwasmadetoundesignatethecurrentClusterDirectorbyadatabasethatisnottheClu...

IT技术学习 ·2023-07-23

ORA-19235: XQST0015 – unsupported must-understand extension

文档解释ORA-19235:XQST0015–unsupportedmust-understandextensionCause:TheXQueryflaggerwasenabledandthequerycontainedamust-understandextension.Action:removetheun...

IT技术学习 ·2023-07-22

ORA-44415: Invalid ACL: Undefined privileges

文档解释ORA-44415:InvalidACL:UndefinedprivilegesCause:AnundefinedprivilegewasfoundinanACEintheACL.Action:Makesuretheprivilegeisdefinedinthesecurityclassasspecifiedi...

IT技术学习 ·2023-07-19

ORA-47221: Label string for Identity string.string under OLS Policy string not found

文档解释ORA-47221:LabelstringforIdentitystring.stringunderOLSPolicystringnotfoundCause:TheobjectbeingrequesteddoesnotexistAction:Chooseanobjectnamethatexistsandretr...

IT技术学习 ·2023-07-19