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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

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-41697: attribute prefix missing in aggregate specification: string

文档解释ORA-41697:attributeprefixmissinginaggregatespecification:stringCause:Anattemptwasmadetospecifyanaggregatepredicateacrossmultipleprimitiveeventtypeswithnoatt...

IT技术学习 ·2023-07-28

ORA-24909: call in progress. Current operation cancelled

文档解释ORA-24909:callinprogress.CurrentoperationcancelledCause:TheOCIcallwasinvokedwhenanothercallontheconnectionwasinprogress.Action:CheckiftheOCIcallissupportedw...

IT技术学习 ·2023-07-28

ORA-39206: A parallel degree of string is invalid.

文档解释ORA-39206:Aparalleldegreeofstringisinvalid.Cause:AbadnumericwassuppliedforspecifyingtheparallelismtobeusedwithinaDataPumpjob.Thedegreeofparallelismmustbeani...

IT技术学习 ·2023-07-27

ORA-13619: The procedure argument string is greater than the maximum allowable length of string characters.

文档解释ORA-13619:Theprocedureargumentstringisgreaterthanthemaximumallowablelengthofstringcharacters.Cause:Theuserattemptedtopassacharacterargumentthatistoolong.Act...

IT技术学习 ·2023-07-27

ORA-40382: More than one linear regression equation in the model

文档解释ORA-40382:MorethanonelinearregressionequationinthemodelCause:Morethanonelinearregressionequationwasinthemodel.Action:Makesurethereisonlyonelinearregressione...

IT技术学习 ·2023-07-26

ORA-48226: No Fetch in Progress

文档解释ORA-48226:NoFetchinProgressCause:Anattempttoperformupdateordeletehasoccurredwithoutafetch.Action:Youmustfirstperformafetch.ORA-48226是Oracle数据库的一个错误码。它表明在执行一...

IT技术学习 ·2023-07-26

ORA-19733: COMPATIBLE parameter needs to be string or greater

文档解释ORA-19733:COMPATIBLEparameterneedstobestringorgreaterCause:TheCOMPATIBLEinitializationparameterisnothighenoughtoallowtheoperation.Allowingthecommandwouldmak...

IT技术学习 ·2023-07-26

ORA-56902: expect aggregate function inside pivot operation

文档解释ORA-56902:expectaggregatefunctioninsidepivotoperationCause:Attemptedtousenon-aggregateexpressioninsidepivotoperation.Action:Useaggregatefunction.等。ORA-56902...

IT技术学习 ·2023-07-26

ORA-46101: Circular definition for aggregate privilege string in security class string

文档解释ORA-46101:CirculardefinitionforaggregateprivilegestringinsecurityclassstringCause:Definitionofanaggregateprivilegecontaineditself.Action:Fixtheaggregatepriv...

IT技术学习 ·2023-07-26

ORA-31690: Process name buffer size must be specified and must be greater than 0.

文档解释ORA-31690:Processnamebuffersizemustbespecifiedandmustbegreaterthan0.Cause:CalledgetworkerexceptionandeitherspecifiedNULLor0forthebuffersizeargument.Action:B...

IT技术学习 ·2023-07-26

ORA-16284: timed out waiting for an in-progress operation to complete

文档解释ORA-16284:timedoutwaitingforanin-progressoperationtocompleteCause:Anoperationtimedoutwaitingforanotheroperationtocomplete.Action:Retrytheoperationwhenthein-...

IT技术学习 ·2023-07-26

ORA-10997: another startup/shutdown operation of this instance inprogress

文档解释ORA-10997:anotherstartup/shutdownoperationofthisinstanceinprogressCause:AnOracleInstancestartuporshutdownoperationfailedtoprocuretheserializationprimitive.A...

IT技术学习 ·2023-07-26

ORA-12477: greatest lower bound resulted in an invalid OS label

文档解释ORA-12477:greatestlowerboundresultedinaninvalidOSlabelCause:Youtriedtodoanoperationthatgeneratedagreatestlowerbound(GLB)labelwhichisnotavalidlabelonyouroper...

IT技术学习 ·2023-07-26