What is the reason for the failure of the node database connection?

clipboard.png

clipboard.png

Node-mysql nodejs-express node.js
Mar.14,2021
The reason for the

error is that the connection cannot be established.

  • Note that your IP address is local and check to see if mysql is installed locally.
  • if installed, check to see if it is started
  • if started, check whether the port can connect telnet localhost 3306 or netstat-ano see if 3306 is listening
  • try restarting if you can connect
The

telnet localhost 3306 command branch is not available.

Previous: Referencing Echarts in vue causes Cannot read property getAttribute of null?

Next: Js two arrays, the elements are objects, how to remove the intersection?

css mysql arrays josn react html typescript webpack npm sass R objective-c .net sql-server jquery python-3.x angularjs django angular excel regex iphone ajax linux xml pandas vba spring database wordpress string wpf xcode windows bash postgresql oracle multithreading eclipse list firebase algorithm macos forms image scala visual-studio azure bootstrap spring-boot react-native python-2.7 docker performance function winforms matlab powershell apache dataframe api sqlite numpy rest shell selenium flutter dart maven loops qt swing android-studio csv express file class tensorflow sorting codeigniter perl
MySQL Query : SELECT * FROM `codeshelper`.`v9_news` WHERE status=99 AND catid='6' ORDER BY rand() LIMIT 5
MySQL Error : Disk full (/tmp/#sql-temptable-64f5-1b2c672-2ae75.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1b2c672-2ae75.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
Need Help?