CR主题的文章列表，还有CR的技术要点_第2页

SecureCrt 设置终端颜色和编码格式

最开始终端颜色只有黑白看着太不明显，无法直接区分目录和文件！选项》全局选项》编辑默认设置继续进行设置：终端》仿真》终端Linux 终端》外观》字符编码设置》utf-8 ...

开发笔记 ·2024-03-19

Credis和Phpredis的区别：适合多PHP环境的Redis客户端

实现方式Credis是纯PHP实现的Redis客户端，使用PHP的socket函数进行通信，不需要依赖任何扩展。由于是纯PHP实现，所以在性能上不如phpredis。phpredis则是使用C语言编写的Redis客户端扩展，使用了Redis的CAPI，因此在性能上比Credis更高。同时，phpredis支持Redis...

开发笔记 ·2024-03-12

一个hcrm的架构图

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开发笔记 ·2024-02-25

C#读取Excel报错：未在本地计算机上注册Microsoft.ACE.OLEDB.12.0提供程序

解决访问Excel数据源时出现未在本地计算机上注册Microsoft.ACE.OLEDB.12.0提供程序1、确保安装了Microsoft.ACE.OLEDB.12.0驱动http://download.microsoft.com/download/7/0/3/703ffbcb-dc0c-4e19-b0da-14639...

开发笔记 ·2023-12-01

javascript （）、[]、{}的区别

一、{}大括号，表示定义一个对象，大部分情况下要有成对的属性和值，或是函数体在js中,[]表示的是数组对象，{}表示的是对象；vararr={}；arr[“属性名”]=属性值；vardemo={"name":"weicunbin","age&qu...

开发笔记 ·2023-09-07

ORA-30731: scope constraint not allowed on nested table column when the nested table is being created

文档解释ORA-30731:scopeconstraintnotallowedonnestedtablecolumnwhenthenestedtableisbeingcreatedCause:Anattemptwasmadetodefineascopeconstraintonanestedtablecolumnwhen...

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-24240: invalid database access descriptor (DAD) name

文档解释ORA-24240:invaliddatabaseaccessdescriptor(DAD)nameCause:ThespecifiedDatabaseAccessDescriptor(DAD)namewasinvalid.Action:MakesurethenameoftheDatabaseAccessDes...

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-26942: LCR should not contain old value for column string in table string.string

文档解释ORA-26942:LCRshouldnotcontainoldvalueforcolumnstringintablestring.stringCause:TheLCRcontainedoldvaluesforLOB,XMLTypeandobjectcolumns.Action:Removeoldvaluesf...

IT技术学习 ·2023-07-28

ORA-48407: DESCRIBE and QUERY commands need at least relation name argument

文档解释ORA-48407:DESCRIBEandQUERYcommandsneedatleastrelationnameargumentCause:ThisisnorelationnameisinputasargumentAction:Needuserstoinputatleasttherelationname这是一...

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-39189: unable to decrypt dump file set

文档解释ORA-39189:unabletodecryptdumpfilesetCause:Thedumpfilesetcouldnotbedecrypted.Thereasoncouldbeeitherthataninvalidpasswordwasentered,orthat,whenusingtransparen...

IT技术学习 ·2023-07-28

ORA-38950: Source platform string not cross platform compliant

文档解释ORA-38950:SourceplatformstringnotcrossplatformcompliantCause:Crossplatformtransportwasnotallowedforthisplatform.Action:Foralistofsupportedplatforms,queryfix...

IT技术学习 ·2023-07-28

ORA-07751: slemcr: malloc failure

文档解释ORA-07751:slemcr:mallocfailureCause:Anattempttoallocateacacheforanewly-createdmessagefilefailed.Thisisaninternalerror.Action:Contactyourcustomersupportrepre...

IT技术学习 ·2023-07-28