GR主题的文章列表，还有GR的技术要点_第1页

ORA-15276: ASM diskgroup string has cluster voting files

文档解释ORA-15276:ASMdiskgroupstringhasclustervotingfilesCause:Anattemptwasmadetodropadiskgroupthatcontainedclustervotingfiles.Action:Movetheclustervotingfilesoutof...

IT技术学习 ·2025-02-20

ORA-13863: Statistics aggregation for service(module/action) string is not enabled

文档解释ORA-13863:Statisticsaggregationforservice(module/action)stringisnotenabledCause:Attempttodisableaservice-levelstatisticsaggregationwhichwasneverenabledActio...

IT技术学习 ·2025-02-20

ORA-46102: Privilege string aggregated in security class string is not found

文档解释ORA-46102:PrivilegestringaggregatedinsecurityclassstringisnotfoundCause:Definitionofanaggregateprivilegecontainedaprivilegethatisnotdefinedinthisorparentsec...

IT技术学习 ·2025-02-20

ORA-47180: Integration Policy for OLS Policy string is already defined

文档解释ORA-47180:IntegrationPolicyforOLSPolicystringisalreadydefinedCause:TheobjectwiththisnameexistsalreadyAction:ChooseauniqueobjectnameandretrytheoperationORA-4...

IT技术学习 ·2025-02-20

ORA-13541: system moving window baseline size (string) greater than retention (string)

文档解释ORA-13541:systemmovingwindowbaselinesize(string)greaterthanretention(string)Cause:Thesystemmovingwindowbaselinesizemustbelessthantheretentionsetting.Thespec...

IT技术学习 ·2025-02-14

ORA-07491: scgrcl: cannot cancel lock request.

文档解释ORA-07491:scgrcl:cannotcancellockrequest.Cause:lm_cancelfailedduringlockrelease/cancel.Action:Checkresultcodeinsercerrno.Possiblelockmanagerfailure.ORA-0749...

IT技术学习 ·2025-02-14

ORA-10452: Cannot do block media recovery; media recovery session may be in progress

文档解释ORA-10452:Cannotdoblockmediarecovery;mediarecoverysessionmaybeinprogressCause:Amediarecovery,RMAN,orflashbackdatabasesessionmayhavebeeninprogresswhenanattem...

IT技术学习 ·2025-02-14

ORA-23487: object groups “string”.”string” and “string”.”string” do not have the same connection qualifier

文档解释ORA-23487:objectgroups“string”.”string”and“string”.”string”donothavethesameconnectionqualifierCause:Thespeci...

IT技术学习 ·2025-02-13

PostgreSQL获取年月日

1.获取当前日期的年份selectto_char(t.detect_date,'YYYY')selectextract(yearfromnow())为doubleprecision格式类型selectto_char((SELECTnow()::timestamp),'yyyy')2.获取...

开发笔记 ·2024-09-06

GraphQL

GraphQL 是一种查询语言，用于替代RESTAPI。它允许客户端指定所需的数据，并且只获取这些数据，提升了数据获取的效率和灵活性。...

开发笔记 ·2024-08-31

Reactive Programming

ReactiveProgramming 使得处理异步数据流和事件变得更加简洁。常用的库和框架包括： - RxJS:JavaScript的响应式扩展库。- Svelte:一个新的前端框架，支持声明式编程和更简洁的语法。...

开发笔记 ·2024-08-31

dataGridView双缓冲双buffer代码

在form_load方法中添加一下代码双缓冲：Typetype=dataGridView_items.GetType();System.Reflection.PropertyInfopi=type.GetProperty("DoubleBuffered",System.Reflection.BindingF...

开发笔记 ·2024-02-02

Linux grep指令的10个使用技巧

grep(globalregularexpressionprint)是Linux或其他类Unix操作系统中的一个功能强大的命令行搜索工具。它可以从文件或标准输入中搜索文本或字符串，并显示匹配的行或统计信息。grep命令有大量的选项和用法，本文将介绍一些常见的示例。grep命令可用于在一个或多个文件中搜索字符串或正则表达...

开发笔记 ·2023-12-30

ORA-44739: Cannot drop the last group.

文档解释ORA-44739:Cannotdropthelastgroup.Cause:Anattemptwasmadetodropthelastgroupintheindex.Action:UsetheDROPINDEXstatementinstead.ORA-44739是Oracle数据库中的一个错误代码。它表明，用...

IT技术学习 ·2023-07-28

ORA-44742: Cannot alter columns of a table that is shared by other group(s).

文档解释ORA-44742:Cannotaltercolumnsofatablethatissharedbyothergroup(s).Cause:Anattemptwasmadetoaddcolumnsto,modifycolumnsof,ordropcolumnsfromatablesharedbyothergro...

IT技术学习 ·2023-07-28