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谷歌推出 KataOS 开源操作系统,基于 Rust 编写

10月14日,谷歌宣布推出KataOS操作系统,目标是为嵌入式设备提供安全系统。谷歌表示该系统的目的是为嵌入式设备提供安全解决方案。现在从环境中收集和处理信息的智能设备越来越多,如果无法保证数据安全,那么他们收集的信息,例如照片、录音和其它数据,可能会被恶意软件访问。因此,需要有一个简单的解决方案来为嵌入式硬件构建可验...

Mysql报错: ERROR 1290 (HY000): The MySQL server is running with the --secure-file-priv option so it cannot execute this statement

解决方法一:报错:ERROR1290(HY000):TheMySQLserverisrunningwiththe--secure-file-privoptionsoitcannotexecutethisstatement 二:分析:MySQL对于导入导出的目录是有限制的,只允许指定的目录才能导入导出。secu...

loadrunner 场景设计-集合点设置

1 作用通过让多用户在同一时间点上进行并发操作来测试系统的并发处理的能力2 实现通过集合点函数来实现。注意:集合点经常和事务结合起来使用。集合点只能插入到Action部分,vuser_init和vuser_end中不能插入集合点。所以,如果要模拟并发登录,那么必须把登录操作放到Action中3&nb...

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-...

RuoYi—一款开源的基于SpringBoot开发的轻量级Java快速开发框架

若依框架采用前后端分离的架构设计。后端基于SpringBoot,集成了许多常用的功能模块,包括权限管理、任务调度、数据字典、系统监控等。这些模块使得开发人员能够快速搭建系统基础功能,专注于业务逻辑的实现。前端使用了Vue.js作为主要的前端开发框架,结合了ElementUI等组件库,提供了用户友好的界面和丰富的交互体验...

Struts2中EL表达式如何执行

在Struts2中,EL表达式是通过OGNL(Object-GraphNavigationLanguage)来执行的。EL表达式可以在Struts2的jsP页面或配置文件中使用。在JSP页面中,可以使用EL表达式来获取Action类中的属性值。例如,通过`${actionName.propertyName}`来获取Ac...

ORA-47346: Rule set string is used by one or more command rules.

文档解释ORA-47346:Rulesetstringisusedbyoneormorecommandrules.Cause:Thespecifiedrulesetwasusedbyexistingcommandrule(s).Action:Removethedependentcommandrulesandretryt...
IT技术学习 ·2023-07-28

ORA-41689: invalid collection specification in the rule condition

文档解释ORA-41689:invalidcollectionspecificationintheruleconditionCause:Anattemptwasmadetoinsertaruleconditionwithinvalidcollectionelementspecification.Action:Corre...

ORA-44747: An XMLIndex with a structured component cannot be specified with ASYNC.

文档解释ORA-44747:AnXMLIndexwithastructuredcomponentcannotbespecifiedwithASYNC.Cause:AnattemptwasmadetospecifyASYNCparameterforanXMLIndexwithastructuredcomponent.Ac...

ORA-47362: error adding Rule string to Rule Set string, string

文档解释ORA-47362:erroraddingRulestringtoRuleSetstring,stringCause:AnunexpectederroroccurredaddingtheruletotherulesetAction:Pleasereviewthedefinitionforaccuracyandr...

ORA-41633: specified rule class configuration not supported: “string”

文档解释ORA-41633:specifiedruleclassconfigurationnotsupported:“string”Cause:Anattemptwasmadetouseanunsupportedconfigurationfortheruleclass.Action:Remove...

ORA-55339: a virtual model already exists for the specified model-rulebase combination

文档解释ORA-55339:avirtualmodelalreadyexistsforthespecifiedmodel-rulebasecombinationCause:Avirtualmodelwithidenticalcomponentswasalreadypresent.Action:Chooseadiffer...

ORA-24167: incompatible rule engine objects, cannot downgrade

文档解释ORA-24167:incompatibleruleengineobjects,cannotdowngradeCause:thereareruleengineobjectsinthedatabasethatcannotbedowngraded.Action:checkutlincmp.sqlandremovea...

ORA-26877: must reattach after an OCIXStreamOut call was interrupted

文档解释ORA-26877:mustreattachafteranOCIXStreamOutcallwasinterruptedCause:AnattemptwasmadetoexecuteanotherOCIXStreamOutAPIwhenanearliercallwasinterruptedbecausetheX...

ORA-47343: error deleting Rule Set string, string

文档解释ORA-47343:errordeletingRuleSetstring,stringCause:AnunexpectederroroccurreddeletingtherulesetAction:PleasereviewthedefinitionforaccuracyandretrytheoperationO...
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