LIS主题的文章列表，还有LIS的技术要点_第1页

如何重写ListViewItem风格？

重写ListViewItem风格可以通过自定义样式来实现。以下是一个完善且全面的答案：ListView是一种常用的控件，用于在界面上展示列表数据。ListView的每个项都由一个ListViewItem表示，我们可以通过重写ListViewItem的样式来改变其外观和行为。要重写ListViewItem的风格，可以按照...

开发笔记 ·2024-07-26

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

java中arraylist命名空间是什么

Java中没有命名空间的概念，ArrayList是java.util包中的一个类。Java中没有命名空间的概念，但是可以使用包名来进行区分。例如，如果你想使用ArrayList类，可以通过导入java.util包来实现：```importjava.util.ArrayList;```然后就可以在代码中直接使用Array...

开发笔记 ·2024-01-29

ORA-32039: recursive WITH clause must have column alias list

文档解释ORA-32039:recursiveWITHclausemusthavecolumnaliaslistCause:AWITHclausequeryreferredtoitself(recursive)butdidnothaveacolumnaliaslistspecifiedforit.Action:Adda...

IT技术学习 ·2023-07-28

ORA-24101: stopped processing the argument list at: string

文档解释ORA-24101:stoppedprocessingtheargumentlistat:stringCause:Oneoftheargumentsoftherequestedoperationcontainedalistofschedulerobjects.Whileprocessingthislistane...

IT技术学习 ·2023-07-28

ORA-31635: unable to establish job resource synchronization

文档解释ORA-31635:unabletoestablishjobresourcesynchronizationCause:AlockusedinsynchronizingDataPumpresourcesduringjobcreationanddeletioncouldnotbeobtainedduringjobc...

IT技术学习 ·2023-07-28

ORA-48938: View select column count differs from select alias list

文档解释ORA-48938:ViewselectcolumncountdiffersfromselectaliaslistCause:Theviewaliaslisthasadifferentnumberoffieldsthantheselectlist”Action:Changethealiaslisto...

IT技术学习 ·2023-07-28

ORA-28509: unable to establish a connection to non-Oracle system

文档解释ORA-28509:unabletoestablishaconnectiontonon-OraclesystemCause:Initializationofadatabaselinktoanon-OraclesystemfailedtoconnecttotheHeterogeneousServicesagent...

IT技术学习 ·2023-07-28

ORA-22900: the SELECT list item of THE subquery is not a collection type

文档解释ORA-22900:theSELECTlistitemofTHEsubqueryisnotacollectiontypeCause:TheTHEsubquerymustSELECTanestedtableorVARRAYitem.Action:changethesubquerytoSELECTanestedta...

IT技术学习 ·2023-07-28

ORA-32048: cycle mark column name for CYCLE clause must not be part of the column alias list

文档解释ORA-32048:cyclemarkcolumnnameforCYCLEclausemustnotbepartofthecolumnaliaslistCause:TheCYCLEclauseforarecursiveWITHqueryspecifiedacyclemarkcolumnthatwasalread...

IT技术学习 ·2023-07-28

ORA-12508: TNS:listener could not resolve the COMMAND given

文档解释ORA-12508:TNS:listenercouldnotresolvetheCOMMANDgivenCause:dbyincompatibleOracleNetorNet8versions.Donotincludeinerrormanual.Action:Thisisnotseeninnormaluseof...

IT技术学习 ·2023-07-28

ORA-30363: columns in a dimension column list must be in the same relation

文档解释ORA-30363:columnsinadimensioncolumnlistmustbeinthesamerelationCause:Thedimensionstatementcontainedacolumnlistwherethecolumnsarenotallfromthesamerelation.Act...

IT技术学习 ·2023-07-28

ORA-25252: listen failed, the address string is a non-persistent queue

文档解释ORA-25252:listenfailed,theaddressstringisanon-persistentqueueCause:Anon-persistentqueuewasspecifiedasanaddressforanagentintheLISTENcall.Action:Specifyanorma...

IT技术学习 ·2023-07-28

ORA-14309: Total count of list values exceeds maximum allowed

文档解释ORA-14309:TotalcountoflistvaluesexceedsmaximumallowedCause:Partitionedobjectcontainsmorethan524288listvaluesAction:Reducenumberofvaluestolessthan524288.ORA-...

IT技术学习 ·2023-07-27

ORA-32046: sequence column name for SEARCH clause must not be part of the column alias list

文档解释ORA-32046:sequencecolumnnameforSEARCHclausemustnotbepartofthecolumnaliaslistCause:TheSEARCHclauseforarecursiveWITHqueryspecifiedasequencecolumnthatwasalread...

IT技术学习 ·2023-07-27