AG主题的文章列表，还有AG的技术要点_第1页

dpkg: error processing package installed xxx package post-removal script subprocess returned...

在Ubuntulinux中有一个deb包安装出了问题，无法安装，也无法卸载，报错如下：dpkg:errorprocessingpackagexxx(–purge):installedxxxpackagepost-removalscriptsubprocessreturnederrorexitstatus1E...

开发笔记 ·2024-08-29

spring源码分析之spring-messaging模块详解

spring-messaging模块为集成messagingapi和消息协议提供支持。其代码结构为：其中base定义了消息Message(MessageHeader和body)、消息处理MessageHandler、发送消息MessageChannel。1.base模块其结构如下所示：其中：message由两部分组成，...

开发笔记 ·2024-08-10

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

什么是 JTAG?

/什么是JTAG？JTAG，JointTestActionGroup的缩写，原意指的是开发IEEE1149.1标准的开发小组。后用JTAG泛指该标准，比如JTAG总线，指的是该标准规定的总线。JTAG总线以及架构广泛应用于芯片测试与调试，板级连接性测试以及嵌入式应用开发调试中。/JTAG有哪些用途？JTAG有调试访问（...

开发笔记 ·2024-02-15

c# winform 开启双缓冲，解决dataguidview卡顿

窗体的构造函数中，开启窗体的双缓冲publicssss(){//设置窗体的双缓冲this.SetStyle(ControlStyles.OptimizedDoubleBuffer|ControlStyles.ResizeRedraw|ControlStyles.AllPaintingInWmPaint,true);th...

开发笔记 ·2024-02-02

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

Agent是什么

广义的Agent包括人类、物理世界的机器人和信息世界的软件机器人。狭义的Agent专指信息世界中的软件机器人或称软件Agent。 1)弱定义Agent用来最一般地说明一个软硬件系统，具有四个特性：（1）自治性。在无人或其他系统的直接干预下可自主操作，并能控制其行为和内部状态...

开发笔记 ·2023-12-27

ORA-41666: XML schema validation failed when validating against string

文档解释ORA-41666:XMLschemavalidationfailedwhenvalidatingagainststringCause:TheuserinputhasundefinedelementorattributeaccordingtotheprovidedXMLschemadefinition.Acti...

IT技术学习 ·2023-07-28

ORA-29309: export dump file was generated by different version of DBMS_PITR package

文档解释ORA-29309:exportdumpfilewasgeneratedbydifferentversionofDBMS_PITRpackageCause:TheversionofDBMS_PITRisdifferentfromtheversionofthecloneddatabase.Action:Loadt...

IT技术学习 ·2023-07-28

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-56609: Usage not supported with DRCP

文档解释ORA-56609:UsagenotsupportedwithDRCPCause:ThisusagewasnotsupportedonaDRCPconnection.Action:Useadedicatedconnectiontoperformthistask.ORA-56609错误是指应用程序不能使用数据库连...

IT技术学习 ·2023-07-28

ORA-30695: JDWP message format problem

文档解释ORA-30695:JDWPmessageformatproblemCause:AmessagepassedfromonesoftwaresubcomponenttoanotherusingtheJDWPprotocolappearsinvalidlyformatted.Action:Thisisaninter...

IT技术学习 ·2023-07-28

ORA-24052: cannot propagate object type payloads with LOB attributes to an 8.0 release

文档解释ORA-24052:cannotpropagateobjecttypepayloadswithLOBattributestoan8.0releaseCause:TherecipientofamessagewithLOBattributeswasusinganOracle8.0release.Propagatio...

IT技术学习 ·2023-07-28

ORA-24303: call not supported in non-deferred linkage

文档解释ORA-24303:callnotsupportedinnon-deferredlinkageCause:Oneofthecallsthatissupportedindeferredmodelinkageexclusivelywasinvokedwhentheclientwaslinkednon-deferre...

IT技术学习 ·2023-07-28

ORA-25315: unsupported configuration for propagation of buffered messages

文档解释ORA-25315:unsupportedconfigurationforpropagationofbufferedmessagesCause:Anattemptwasmadetopropagatebufferedmessageswiththedatabaselinkpointingtoaninstancein...

IT技术学习 ·2023-07-28