Tag：and
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Time：2020-11-22
Two methods of GIT branching and merging Git add – A and git add. Git add – u are similar in function, but there are still some differences git add . : he will monitor the status tree of the workspace, which will be used to commit all changes in the work to the staging […]
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Time：2020-10-8
1、 Overview RZ, SZ are the command line tools for zmodem file transfer between Linux / Unix and windows. The advantage is that there is no need to open a SFTP tool to log in to upload and download files. Zmodem protocol is an error checking protocol for modem. Using zmodem protocol, 512 byte data […]
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Time：2020-8-19
At present, the differences are mainly in the scope of environmental variables 1. If you use “.” / “to execute, it can be understood that the program runs in a new shell and does not inherit the value of the environment variable of the current shell. At the same time, if the environment variable in […]
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Time：2020-7-7
The difference between call and exec in Oracle Today, I used Oracle to do the project. I found it interesting in the process of doing the project. I found some information and shared it with you In sqlplus: Tools provided by third parties (e.g. plsqldev) Summary: Exec is a command of sqlplus and can only […]
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Time：2020-4-5
A detailed explanation of the differences between Oracle date and timestamp 1. Date data type We are so familiar with this data type that we will think of date type when we need to represent date and time. It can store months, years, days, centuries, hours, minutes and seconds. It is typically used to indicate […]
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Time：2020-2-9
Sed usage: Sed is a very good file processing tool. It is a pipeline command. It is mainly processed in behavioral units. You can replace, delete, add, select data lines and other specific work. Let’s learn about the use of SED first The SED command line format is: Sed [- nefri] ‘command’ enter text Common […]
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Time：2020-1-6
Use of dllplugin and dllreferenceplugin Dllplugin and dllreferenceplugin realize the splitting of bundles in some way, and at the same time greatly improve the construction speed. 1. First add the build folder —– webpack.dll.config.js: var path = require(“path”); var webpack = require(“webpack”); module.exports = { //Array of modules to package entry: { vendor: [‘vue/dist/vue.esm.js’,’vue-router’] }, […]
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Time：2019-10-21
Explain Mongodb is a very famous NoSQL database. The following is the installation of mongodb under Ubuntu 14.04, as well as the configuration for PHP (driver installation, etc.), which is applicable to homestead. Install mongodb 1. add source sudo apt-key adv –keyserver hkp://keyserver.ubuntu.com:80 –recv 7F0CEB10 echo ‘deb http://downloads-distro.mongodb.org/repo/ubuntu-upstart dist 10gen’ | sudo tee /etc/apt/sources.list.d/mongodb.list sudo […]
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Time：2019-10-12
Differences between @ Autowired and @ resource annotations in spring framework In the spring framework, in addition to its unique annotations, JSR-250-based annotations are used, which include @PostConstruct, @PreDestroy and @Resource annotations. First, let’s briefly understand the @ postconstruct and @ predestroy annotations: To define the installation and uninstallation of a bean, we can use […]
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Time：2019-10-11
Differences between @Service and @Resource annotations in Spring 1 Preface When we use spring framework, annotations are an “indispensable” part. She helps us get rid of the tedious task of configuring XML files, but one thing we need to grasp is “3He”, that is, “When, Where and Where to Annotate?” In this blog post, the […]
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Time：2019-5-9
If you’re a newcomer to Linux, you might be confused between more, less, and most, the three command-line tools. In this article, I will compare these three command line tools and show some examples of their respective use in Linux. Overall, there are similarities and differences between these command-line tools, and they come with them […]
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Time：2019-3-23
When using mongodb, there is a “not master and slaveok = false” error because secondary does not allow reading and writing. Because mongodb is the master and backup in the system, switching between the master and backup may also lead to this problem. Replace the IP in the command Mongo — username = root — […]
