Py主题的文章列表，还有Py的技术要点_第4页

python 遍历本地文件

files=os.listdir("./")forfinfiles:　　iff.lower()[-3:]=="mp4":　　　　print(f)...

开发笔记 ·2023-12-29

python连接Dm数据库

在linux环境中，一般都是默认安装python的，可以先在终端进行确定1.2.1安装DM8数据库进行编译此方式需要DM8和python安装在一个服务器上1.2.1.1设置环境变量[root@localhost~]#vim/root/.bash_profileDM_HOME=/opt/dmdbmsexportDM_HO...

开发笔记 ·2023-10-24

Python 编码规范整理

一代码编排1缩进。4个空格的缩进（编辑器都可以完成此功能），不使用Tap，更不能混合使用Tap和空格。2每行最大长度79，换行可以使用反斜杠，最好使用圆括号。换行点要在操作符的后边敲回车。3类和top-level函数定义之间空两行；类中的方法定义之间空一行；函数内逻辑无关段落之间空一行；其他地方尽量不要再空行。二文档编...

开发笔记 ·2023-08-13

ORA-48149: error encountered when attempting to copy a file

文档解释ORA-48149:errorencounteredwhenattemptingtocopyafileCause:TherewasanerrorencounteredwhenattemptingtocopyafilewiththeADRfileinterface.Action:Checkthedirectory...

IT技术学习 ·2023-07-28

ORA-19674: file string is already being backed up with proxy copy

文档解释ORA-19674:filestringisalreadybeingbackedupwithproxycopyCause:Recoverymanagerattemptedtobackupthespecifiedfilewithproxycopy,butthefileisalreadybeingbackedupb...

IT技术学习 ·2023-07-28

ORA-19602: cannot backup or copy active file in NOARCHIVELOG mode

文档解释ORA-19602:cannotbackuporcopyactivefileinNOARCHIVELOGmodeCause:Youtriedtocopyorbackupafilethatwasnotclosedcleanly,andthedatabasewasinNOARCHIVELOGmode.Thisisn...

IT技术学习 ·2023-07-28

ORA-19630: end of volume encountered while copying backup piece

文档解释ORA-19630:endofvolumeencounteredwhilecopyingbackuppieceCause:WhilecopyingabackuppiecefromtheOSnativefilesystemtoanoutputdevice,theoutputdeviceencounteredend...

IT技术学习 ·2023-07-26

ORA-18112: XUTY0013 – Invalid COPY expression for TRANSFORM

文档解释ORA-18112:XUTY0013–InvalidCOPYexpressionforTRANSFORMCause:InaTRANSFORMexpression,asourceexpressioninthecopyclausedidnotreturnasinglenode.Action:None。O...

IT技术学习 ·2023-07-26

ORA-63003: a half-done data file copy

文档解释ORA-63003:ahalf-donedatafilecopyCause:Ahalf-donecopyofadatafilecreatedfromapreviousdatafilemoveoperationwasusedfortheCREATECONTROLFILEcommandorfileheaderrea...

IT技术学习 ·2023-07-26

ORA-13284: failure to copy geometry object for conversion in place

文档解释ORA-13284:failuretocopygeometryobjectforconversioninplaceCause:OCIinternalerror.Action:ContactOracleSupportServiceswiththeexacterrormessagetext.。ORA-13284表示...

IT技术学习 ·2023-07-26

ORA-19675: file string was modified during proxy copy

文档解释ORA-19675:filestringwasmodifiedduringproxycopyCause:Aproxybackupofthespecifiedfilefailedbecausethefilewasbroughton-lineorotherwisemodifiedwhiletheproxybacku...

IT技术学习 ·2023-07-26

ORA-63002: a data file copy that is not current

文档解释ORA-63002:adatafilecopythatisnotcurrentCause:AnobsoletecopyofadatafileleftfromadatafilemoveoperationwasusedfortheCREATECONTROLFILEcommandorfileheaderread.Ac...

IT技术学习 ·2023-07-26

ORA-19603: cannot backup or copy active file with KEEP .. UNRECOVERABLE option

文档解释ORA-19603:cannotbackuporcopyactivefilewithKEEP..UNRECOVERABLEoptionCause:Theusertriedtocopyorbackupafilethatwasnotclosedcleanly,withKEEP..UNRECOVERABLEoptio...

IT技术学习 ·2023-07-26

ORA-19669: proxy copy functions cannot be run on DISK channel

文档解释ORA-19669:proxycopyfunctionscannotberunonDISKchannelCause:Aproxycopyprocedurewascalled,butthedevicewhichisallocatedtothecurrentsessionhastypeDISK.Action:All...

IT技术学习 ·2023-07-26

ORA-13414: invalid pyramid parameter

文档解释ORA-13414:invalidpyramidparameterCause:Thepyramidparameterwasinvalid.Action:Checkthedocumentation,andmakesurethepyramidparameteriscorrect.ORA-13414:invalidp...

IT技术学习 ·2023-07-25