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  <=> operator in MySQL

Have you ever seen "<=>" in a SQL query while using MySQL? Does it mean less and equals to and greater than? Actually if you consider it as the union of <= and =>, great, you are close to it. This is one form of equal operator in MySQL, it has the similar meaning to the = operator with some subtle difference. According to MySQL documentation, <=> is NULL-safe equal. This operator performs an equality comparison like the = operator, but returns 1 rather than NULL if both operand...

   MySQL,NULL safe,<=>     2014-03-24 06:23:22

  Upgrade phpMyAdmin Version in WAMP

Once PHP version is upgraded in WAMP(especially from PHP 5 to PHP 8), we may encounter issue where phpMyAdmin may not work anymore. It needs us to make some upgrade of phpMyAdmin in this case. To do upgrade, can follow below steps. Download the latest phpMyAdmin version. Unzip the downloaded file and copy it to c:\wamp64\apps and rename it to phpmyadminx.y.z, the version you downloaded. Copy the config.inc.php file from the old phpMyAdmin folder to the new one. Update the alias of Apache s...

   WAMP,PHPMYADMIN,UPGRADE,GUIDE,PHP 8     2024-11-28 00:55:42

  Shortcut keys in Sublime Text 3(Animated demo)

Sublime Text 3 is a light weight code editor which supports lots of languages. It has lots of shortcuts and plugins easing work of programmers. In this post, we will introduce some shortcuts supported in Sublime Text 3 and show how powerful they are. 1. Select sibling matching(equal) word (Ctrl + D) Put the cursor on one word, press Ctrl + D to select the word, then press Ctrl and following by pressing D, it will select next matching word. The number of Ds pressed will mean number of matching wo...

   TIPS,SHORTCUT KEY,SUBLIME TEXT     2016-04-28 02:41:28

  10 Tools Every Software Developer Should Use in 2018

The main problem I noticed about most programmers is that even though they know about latest software development tools, they never really spend significant time to learn them well. As a programmer, I always try to learn new tools and latest technologies. At the same time, I also look to improve my knowledge of tools which I have been using for many years. Whether you're a front-end developer, full-stack programmer or part of a DevOps team, you should familiarize yourself with the latest develop...

   SOFTWARE DEVELOPMENT, SOFTWARE DEVELOPMENT TOOLS, PROGRAMMING TOOLS     2018-04-28 07:08:00

  About go get and go install in Go 1.16

Go version 1.16 beta1 has been released on 18 Dec 2020, major features of Go 1.16 have been finalized with this beta release. Many people are discussing about the support of Apple M1, however, this post will not cover this topic. Instead the focus will be on go get and go install changes. There are lots of changes related to modules in Go 1.16, the details can be found in the release note. Below are some of the key highlights. GO111MODULE is on by default, if wanna keep old behavior, needs...

   GOLANG,GO 1.16,GO INSTALL     2020-12-26 00:26:58

  How to handle ES6 modules in NodeJS

In modern JavaScript, there are two types of modules: ES6 module and CommonJS module used by NodeJS. These two types of module are not compatible. Many people would wonder how to load ES6 modules in their NodeJS project. This post will show how this can be done. Difference The syntax of the module being loaded is different. CommonJS modules are loaded with require() and exported with module.exports. ES6 modules are loaded and exported using import and export respectively. Merchanismwise require(...

   NODEJS,COMMONJS,ES6     2020-08-28 22:01:33

  System programming is still there

System programming is the practice of writing system software. System software lives at a low level, interfacing directly with the kernel and core system libraries. Your shell and your text editor, your compiler and your debugger, your core utilities and system daemons are all system software. But so are the network server, the web server, and the database. These components are entirely system software, primarily if not exclusively interfacing with the kernel and the C library. But nowadays more...

   System programming     2014-02-27 05:46:48

  A simple tutorial on Linux nohup command

In our daily work, there might be need to run some important program for hours or even days without being abruptly terminated. In such case, we may want to run the program with command nohup. nohup is the abbreviation of no hangup, i.e, don't hang up or terminate the process. This command will tell the process to ignore the system HUP signal. The HUP signal will be emitted when the terminal is exited or disconnected. Normally process will abort its execution when receiving this signal.  Bas...

   NOHUP,LINUX     2020-08-08 01:14:50

  Boeing is developing Android phone?

Boeing is also involved in to the mobile Internet? It is said to be true. Recently, the Journal of the American national defense disclosure, Boeing is developing a super-safe Android phone.The magazine said Boeing President Roger Krone said this is Boeing's first foray into research and development of communication devices using the cellular network. Security infrastructure sector vice president Brian Palma said the mobile phone code-named "the Boeing Phone" has entered the final stage , is exp...

   Boeing,Android,Safety mobile phone     2012-04-15 01:45:14

  combining dwarf failed: unknown load command 0x80000034 solution in GoLang

In case there is below error encountered while running some go program: combining dwarf failed: unknown load command 0x80000034 This may be due to that you are running go 1.16 on a Mac M! machine. If you go to check go version, it may tell you that you are running an arm version of go. go version go1.16.10 darwin/arm64 In such cases, you can try below methods to workaround the issue. Try to upgrade the go version to 1.17 and run the code again. If this is not an option for you because you have t...

   GO 1.16,0X80000034     2021-11-25 07:11:28

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