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e.preventDefault()是什么

e.preventDefault()是一个JavaScript函数，它可以阻止浏览器的默认行为。例如，当你点击一个超链接时，浏览器会自动跳转到超链接指向的页面，这就是浏览器的默认行为。如果你希望在点击超链接时不跳转，可以在超链接的事件处理函数中使用e.preventDefault()来阻止浏览器的默认行为。 ...

开发笔记 ·2024-12-12

ORA-60025: Event for temp segment cleanup used for temp lobs

文档解释ORA-60025:EventfortempsegmentcleanupusedfortemplobsCause:TempLOBsegmentsusedfortemporaryLOBsaredeletedonlyonsessionexitwhichmayleadtolargeamountsofmemorybei...

IT技术学习 ·2023-07-28

ORA-46078: Invalid event type specified

文档解释ORA-46078:InvalideventtypespecifiedCause:Theeventtypespecifiedisinvalid.Action:Reattempttheoperationwithaninvalideventtype.ORA-46078是一个应用程序级错误，它表明提供的事件类型无效。...

IT技术学习 ·2023-07-28

ORA-41662: number of primitive events in the composite event exceeds maximum limit

文档解释ORA-41662:numberofprimitiveeventsinthecompositeeventexceedsmaximumlimitCause:Anattemptwasmadetocreateacompositeeventstructurewithmorethan32primitiveevents.A...

IT技术学习 ·2023-07-28

ORA-31128: The event handler calls cannot exceed the depth of string

文档解释ORA-31128:TheeventhandlercallscannotexceedthedepthofstringCause:Triedtofireaneventwithdepthexceedingthemaximum.Action:Makesuretheeventthatisbeingfireddoesno...

IT技术学习 ·2023-07-28

ORA-39502: failed to notify CRS of a Startup/Shutdown event [string] (ignored)

文档解释ORA-39502:failedtonotifyCRSofaStartup/Shutdownevent[string](ignored)Cause:Theinstancewasunabletocreateanenvironmentcontext.Action:NoneRequired.Theerrorisign...

IT技术学习 ·2023-07-28

ORA-39500: failed to notify CRS of a Startup/Shutdown event for database “string”, instance “string” (ignored)

文档解释ORA-39500:failedtonotifyCRSofaStartup/Shutdowneventfordatabase“string”,instance“string”(ignored)Cause:Theinstancewasunabletoobtainth...

IT技术学习 ·2023-07-28

ORA-41654: insufficient number of primitive events for the use of “sequence”

文档解释ORA-41654:insufficientnumberofprimitiveeventsfortheuseof“sequence”Cause:Anattemptwasmadetouse“sequence”attributewhenthereisaninsuffi...

IT技术学习 ·2023-07-28

ORA-31701: Event to enable xmltype table export/import with schema

文档解释ORA-31701:Eventtoenablexmltypetableexport/importwithschemaCause:Eventtoenablexmltypetableexport/importwithschemaAction:Disabletheeventatlevel0x100ORA-31701：...

IT技术学习 ·2023-07-28

ORA-64125: XMLIndex: failure during the resetting of an event

文档解释ORA-64125:XMLIndex:failureduringtheresettingofaneventCause:Seeassociatederrormessage.Action:Correcttheerrorandretrycommand.OracleORA-64125:XMLIndex:failured...

IT技术学习 ·2023-07-27

ORA-15158: rolling upgrade prevented by string

文档解释ORA-15158:rollingupgradepreventedbystringCause:Oneormoreinstanceswereblockingtherollingupgrade.Action:Terminateorwaituntilthereportedoperationiscompletebefo...

IT技术学习 ·2023-07-27

ORA-41627: event structure object type in inconsistent state

文档解释ORA-41627:eventstructureobjecttypeininconsistentstateCause:Theobjecttypespecifiedfortheeventstructurewasinaninconsistentstate.Action:Fixtheobjecttypeandtrya...

IT技术学习 ·2023-07-26

ORA-41674: dmlevents policy allowed only for event structures with table aliases

文档解释ORA-41674:dmleventspolicyallowedonlyforeventstructureswithtablealiasesCause:Anattemptwasmadetousethedmleventspolicyforaneventstructurewithnotablealiasconstr...

IT技术学习 ·2023-07-26

ORA-55801: Event to control CR activity

文档解释ORA-55801:EventtocontrolCRactivityCause:Thebitvaluesthatweconsider.0x1:Removefixforbug3514835whichcouldpotentiallythrowmore8177errorsWehaveconservativelyblo...

IT技术学习 ·2023-07-26

ORA-46092: Requested event handler does not exist

文档解释ORA-46092:RequestedeventhandlerdoesnotexistCause:Anattemptwasmadetoregisteranonexistenteventhandler.Action:Pleaseverifyeventhandlernameorcreatetheeventhandl...

IT技术学习 ·2023-07-26