#data

springBoot required a bean of type org.springframework.data.redis.core.RedisTemplate

springBoot启动报错: requiredabeanoftype'org.springframework.data.redis.core.RedisTemplate'     产生这个问题的原因是:系统启动的时候没有扫描到这个RedisT...

com.alibaba.druid.pool.DruidDataSource : create connection SQLException, url: jdbc:mysql:/解决方法详解

com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException:Couldnotcreateconnectiontodatabaseserver.具体错误信息如下:2021-01-0420:20:09.071ERROR12300---[eate-...

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...

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...

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...

dataset导入导出xml

dataset导入xml DataSetdt=BLL.TestClass.Getusers();dt.WriteXml("d:/xml.xml",XmlWriteMode.WriteSchema);xml导入dataset DataSetdsNew=newDataSet();ds...
开发笔记 开发笔记·2024-02-01

C#从数据库读取数据到DataSet并保存到xml文件的方法

DataSet有一个WriteXml方法可以直接将数据保存到xml文件usingSystem;usingSystem.Data;usingSystem.Xml;usingSystem.Data.SqlClient;usingSystem.IO;publicclassTestWriteXML{publicstaticvo...

datax中sqlserver 数据同步到sqlserver

{"job":{"setting":{"speed":{"channel":5}},"content":[{"reader":{"name":"sqlserverreader","parameter":{"username":"xx","password":"xx","where":"","connection":[{...

ORA-53213: cannot access DICOM data with invalid source type

文档解释ORA-53213:cannotaccessDICOMdatawithinvalidsourcetypeCause:AninvalidsourcetypewasstoredinthesourceattributeoftheORDDicomobject.Action:SeetheOracleMultimediad...

ORA-39202: Data cannot be filtered or selected in string jobs.

文档解释ORA-39202:Datacannotbefilteredorselectedinstringjobs.Cause:Adatafilterwassuppliedforthespecifiedtypeofjob,butisnotsupportedinthespecifiedjobtype.Fromthecomm...

ORA-38734: Flashback log is inconsistent; belongs to another database.

文档解释ORA-38734:Flashbacklogisinconsistent;belongstoanotherdatabase.Cause:ThedatabaseIDintheflashbackdatabaselogfiledidnotmatchthedatabaseIDinthecontrolfile.Actio...

ORA-39033: Data cannot be filtered under the direct path access method.

文档解释ORA-39033:Datacannotbefilteredunderthedirectpathaccessmethod.Cause:Theuserspecifiedthatthedataaccessmethodforthejobwasdirectwhichprecludestheuseofcertaindat...

ORA-29307: datafile string error, string

文档解释ORA-29307:datafilestringerror,stringCause:Thedatafileisnotreadyfortablespacepoint-in-timerecovery.Action:Checkthecorrecttablespacepoint-in-timerecoveryproce...
IT技术学习 IT技术学习·2023-07-28

ORA-28045: SSL authentication between database and OID failed

文档解释ORA-28045:SSLauthenticationbetweendatabaseandOIDfailedCause:ServerfailedtoauthenticateitselftotheDirectory.Action:Makesurethesqlnet.orausedispointingtothewa...

ORA-29895: duplicate base datatype specified

文档解释ORA-29895:duplicatebasedatatypespecifiedCause:UserattemptedtoaddabasedatatypetoanindextypewithARRAYDMLwhichisalreadysupportedbytheindextypeAction:Removethed...
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