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Install jdk8 Step 1: download the JDK installation package. Here we download the jdk8 version of the official website of orical. Note: please check accept when downloading. Unpack and decompress after downloading: tar zxvf jdk-8u162-linux-x64.tar.gz Put JDK under / usr/lib/jdk8 mv jdk1.8.0_131/ /usr/lib/jdk8 Modify environment variables ...

1. Requirements: from 10:00 p.m. to 5:00 a.m. every day, execute the stored procedure regularly every 10 minutes. 2. Implementation mode: there are two ways to achieve it: One is more conventional. Using mysql event timing task, first introduce the related commands of event timing task in mysql, To see if event is enabled: ...

System Convention Download directory of installation files / opt/software Mysql directory installation location: usr/local/mysql Database save location / data/mysql Log saving location: data/logs/mysql Dependency package required for MySql installation Before installing mysql, you'd better install the dependency package ...

Due to the loss of control file caused by a power failure, the startup database reported ORA-00205 error: SQL> startup ORACLE instance started. Total System Global Area 419430400 bytes Fixed Size 2925120 bytes Variable Size 285216192 bytes Database Buffers 125829120 bytes Redo Buffers ...

1. Download jdk7 (download it on the official website) Download address: http://www.oracle.com/technetwork/java/javase/downloads/java-archive-downloads-javase7-521261.html 1.1 before downloading, check whether the system is 32-bit or 64 bit [root@redis ~]# getconf LONG_BIT 64 I am 64 bit here, so I choose to downloa ...

Prepare data: – create a "shop" Database CREATE DATABASE shop CHARSET=utf8; – use "Jingdong" Database use shop; – create a goods data table Insert data (if you don't understand the meaning of each field name, read the insert data below, you will understand it, but you still ...

In the integrated development environment of Windows (Qt, VC, VS all have this problem), write the C/C + + program about file reading. When it reads 0X1A, it ends unexpectedly. After debugging and checking, it is found that 0X1A is processed as 0XFF (EOF (- 1)) after reading, but there is no such problem of parsing erro ...

Arch Linux Installation Tutorial Arch Linux Installation Tutorial Arch Linux + xface Desktop + Apps + VMWare According to the teaching video installation on YouTube, summarize the steps I've played CentOS and Ubuntu before, but I didn't play much in development. When I met a front-end elder in a ...

1. When installing apache, it has been checked that there is no mysql native to centos installed locally. If there is any, it must be uninstalled, or the port may be occupied 2. Prepare mysql installation package (note that when compiling, the compilation of mysql 5.5 and above is different from that of mysql 5.5 and below. 5.5 needs to be comp ...

1. Grab APP data package Please refer to this blog post for detailed methods: http://my.oschina.net/jhao104/blog/605963 Get the login address of the super curriculum: http://120.55.151.61/V2/StudentSkip/loginCheckV4.action Form: The form includes the user name and password. Of course, they are all encrypted. There is also a de ...