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Component Libraries 与 Design Systems

ComponentLibraries 和 DesignSystems 提供了一套标准化的UI组件和设计规范，帮助开发者快速构建一致性高的用户界面。例如： - Material-UI:Google的MaterialDesign组件库。- AntDesign:一个...

开发笔记 ·2024-08-31

Web Components是什么

WebComponents 是一种标准化的前端技术，用于创建可重用的、封装的组件。这些组件可以在不同的框架和库中使用，支持跨框架的组件开发。 - CustomElements:定义自定义HTML元素。- ShadowDOM:提供封装的DOM和CSS。- HTMLTemp...

开发笔记 ·2024-08-31

com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: Data source rejected establishment of connection, message from server: Too many connections

最简单的办法是因为你的my.ini中设定的并发连接数太少或者系统繁忙导致连接数被占满解决方式：打开MySQL安装目录打开MY.INI找到max_connections默认是100.--实例WINDOWS解决mysql Errno.:1040错误XXXXinfo:CannotconnecttoMySQLserv...

开发笔记 ·2024-04-29

ORA-47346: Rule set string is used by one or more command rules.

文档解释ORA-47346:Rulesetstringisusedbyoneormorecommandrules.Cause:Thespecifiedrulesetwasusedbyexistingcommandrule(s).Action:Removethedependentcommandrulesandretryt...

IT技术学习 ·2023-07-28

ORA-44747: An XMLIndex with a structured component cannot be specified with ASYNC.

文档解释ORA-44747:AnXMLIndexwithastructuredcomponentcannotbespecifiedwithASYNC.Cause:AnattemptwasmadetospecifyASYNCparameterforanXMLIndexwithastructuredcomponent.Ac...

IT技术学习 ·2023-07-28

ORA-39754: FULL PARTITIONED OUTER JOIN is not supported

文档解释ORA-39754:FULLPARTITIONEDOUTERJOINisnotsupportedCause:AnattemptwasmadetouseFULLPARTITIONEDOUTERJOIN.Action:SpecifyFULLPARTITIONEDOUTERJOINthroughUNIONofLEFT...

IT技术学习 ·2023-07-28

ORA-55470: OLS may not be applied with one or more models VPD-enabled

文档解释ORA-55470:OLSmaynotbeappliedwithoneormoremodelsVPD-enabledCause:AnattemptwasmadetoOLS-enableResourceDefinitionFramework(RDF)repositorywhenoneormoremodelsisV...

IT技术学习 ·2023-07-28

ORA-28151: more than one user name specified for command

文档解释ORA-28151:morethanoneusernamespecifiedforcommandCause:MorethanoneusernamewasspecifiedforanALTERUSERcommand.Action:Trythecommandagainwithonlyoneusername.ORA-...

IT技术学习 ·2023-07-28

ORA-32335: dimension must have at least one level

文档解释ORA-32335:dimensionmusthaveatleastonelevelCause:Anlevel-lessdimensionisnotallowed.Action:Donotdroptheonlylevelofadimension.ORA-32335:dimensionmusthaveatleas...

IT技术学习 ·2023-07-28

ORA-48494: ADR home is not set, the corresponding operation cannot be done

文档解释ORA-48494:ADRhomeisnotset,thecorrespondingoperationcannotbedoneCause:TheadrhomeisnotsetinthecurrentadrcisessionAction:Settheadrhomeusingtheadrcicommand̶...

IT技术学习 ·2023-07-28

ORA-29846: cannot create a local domain index on a string partitioned table

文档解释ORA-29846:cannotcreatealocaldomainindexonastringpartitionedtableCause:Userspecifiedacreatelocaldomainindexstatementonatablepartitionedusingamethodnotsupport...

IT技术学习 ·2023-07-28

ORA-19955: only one open thread is allowed to change the DBID

文档解释ORA-19955:onlyoneopenthreadisallowedtochangetheDBIDCause:Theoperationfailedbecausetherewereactivethreadsinthedatabase.Themostlikelycauseisthatthedatabasecra...

IT技术学习 ·2023-07-28

ORA-19290: XQST0069 – more than one empty order declaration declared in the prolog

文档解释ORA-19290:XQST0069–morethanoneemptyorderdeclarationdeclaredintheprologCause:Aprologhadmorethanoneemptyorderdeclaration.Action:Fixtheprologtohavejuston...

IT技术学习 ·2023-07-28

ORA-64104: Column name already used by internal column of the structured component of the XMLIndex.

文档解释ORA-64104:ColumnnamealreadyusedbyinternalcolumnofthestructuredcomponentoftheXMLIndex.Cause:Anattemptwasmadetouseacolumnnamealreadyinusebyaninternalcolumnoft...

IT技术学习 ·2023-07-28

ORA-26846: Found “string” active automatic merge jobs for cloned string Capture “string” in DBA_STREAMS_SPLIT_MERGE

文档解释ORA-26846:Found“string”activeautomaticmergejobsforclonedstringCapture“string”inDBA_STREAMS_SPLIT_MERGECause:Onlyoneactivemergejobisa...

IT技术学习 ·2023-07-28