#Iron

Flink SQL 系列 | 5 个 TableEnvironment 我该用哪个?

本文为FlinkSQL系列文章的第二篇,前面对Flink1.9Table新架构及Planner的使用进行了详细说明,本文详细讲解5个TableEnvironment及其适用场景,并介绍Flink社区对TableEnvironment的未来规划。主要内容如下:TableEnvironment简介5个TableEnviro...

查看修改添加环境变量的工具——Rapid Environment Editor

工欲善其事,必先利其器!特别是公司或者有其他限制的时候,更需要一个比较简单、实用、强大的工具了!原来的公司都是小公司,给电脑安装系统、软件等都是自己直接上手,现在在一个大点的公司了,电脑运维有单独的小组来做,系统操作方面也有点限制,有些软件也不是能随便使用的——现在我的疼点是,安装某些软件想添加一下系统的环境变量,但是...

tomcat启动报错:Neither the JAVA_HOME nor the JRE_HOME environment variable is defined

 windows系统:部署了一个Tomcat8.5.15,bin目录下startup.bat执行,结果提示NeithertheJAVA_HOMEnortheJRE_HOMEenvironmentvariableisdefinedAtleastoneoftheseenvironmentvariableisnee...

maven No compiler is provided environment

下面介绍eclipsemaven操作正常出现的Nocompilerisprovidedinthisenvironment.PerhapsyouarerunningonaJREratherthanaJDK?错误的解决办法。方法/步骤 eclipsemaven操作右击Runas都能看到,如图所示步骤阅读maven...

Result Maps collection already contains value for com.miniprogram.meirong.user.dao.UserMapper.BaseResultMap

出现这种情况了,是mybatis-generator生成mapper.xml一遍之后。再修改数据库,然后再生成,它不会删去之前的,只是增加,就会出现两段相同的代码。<?xmlversion="1.0"encoding="UTF-8"?><!DOCTYPEmapperPUBLIC"-//mybatis....

XML fragments parsed from previous mappers does not contain value for com.miniprogram.meirong.comment.dao.CommentMapper.Base_Column_List

mybatis出错了,正在找原因。XMLfragmentsparsedfrompreviousmappersdoesnotcontainvalueforcom.miniprogram.meirong.user.dao.UserMapper.Blob_Column_List嗯,这个报错,要看仔细,之后去分析,不能怕,一目...

Configure environment variables for different tools in jenkins

安装以下的工具,并在Jenkins中的ManageJenkins-->ConfigureSystem-->GlobalProperties-->EnvironmentVariableshttps://github.com/OpenCover/opencover安装路径"C:UsersdevAppDat...

add environment path to powershell

https://4sysops.com/archives/use-powershell-to-execute-an-exe/https://stackoverflow.com/questions/714877/setting-windows-powershell-path-variable#If,sometimedur...

Environment.NewLine

https://docs.microsoft.com/en-us/dotnet/api/system.environment.newline?view=netframework-4.7.2https://stackoverflow.com/questions/1015766/difference-between-n-a...
代码星球 ·2021-02-08

environment variable is too large 2047

https://stackoverflow.com/questions/34491244/environment-variable-is-too-large-on-windows-10WhenPATHvariablegetsoverloadedwithtoomanyvaluesitreachesapointwherey...

rpmdb: unable to join the environment的问题解决

今天笔者在Centos6.3上使用yum安装lsof软件时,报如下错误:[root@5201351~]#yuminstalllsof-yrpmdb:unabletojointheenvironmenterror:db3error(11)fromdbenv->open:Resourcetemporarilyunav...
代码星球 ·2021-01-09

Iron and Coal(3次bfs)

IronandCoal(3次bfs)      题意:给一个有向图,然后一些点有铁一些点有煤,然后问从1走,至少花费多少(走一个没走过的点花费1,走过的点再走一次是不用花费的)可以拿到一个铁一个煤,点可以重复走。思路:枚举从1节点到一个铁一个煤的交叉点即可,三...
代码星球 ·2020-12-27

No compiler is provided in this environment. Perhaps you are running on a JRE rather than a JDK

在Eclipse中Maveninstall一个项目失败,提示:Nocompilerisprovidedinthisenvironment.PerhapsyouarerunningonaJREratherthanaJDK解决方案:Window-->Preference...
代码星球 ·2020-12-26

Could not install packages due to an Environment Error: [Errno 13] Permission denied 解决方案

执行pipinstall报错如下:CouldnotinstallpackagesduetoanEnvironmentError:[Errno13]Permissiondenied:'/usr/local/lib/python3.5/dist-packages/kiwisolver.cpython-35m-x86_64-...

IEEE 802.11p (WAVE,Wireless Access in the Vehicular Environment)

IEEE802.11p(又称WAVE,WirelessAccessintheVehicularEnvironment)是一个由IEEE802.11标准扩充的通讯协定。这个通讯协定主要用在车用电子的无线通讯上。它设定上是从IEEE802.11来扩充延伸,来符合智能运输系统(IntelligentTransportatio...
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