?????? ??? ?? Node.js? MySQL ??
PHP ???? ???? MySQL ??????? ???? ?? ??? ??? ???? ? ????. Node.js? MySQL?? ??? ?? ??? ?????.
Node.js? ???? MySQL? ????? node.js ????? ?? ??? ??? ??? ??? ? ????. ??? ?? ?? ?? ??? ??????.
node-mysql
? ??? MySQL ??????? ?? ??? ???? ??? ???? ???? ???? ?????. ?? PHP ???? ???? ????? ??? ?????? ?????.
// Example usage const mysql = require('mysql'); const connection = mysql.createConnection({ host: 'example.org', user: 'bob', password: 'secret', }); connection.connect((err) => { if (err) throw err; console.log('Connected to MySQL database!'); });
node-mysql2
? ??? ?????? ? ??? ??? ??? ?? ?? ??? ?????. ??. ???? ??? ?? ??? ??? ??????? ?????.
// Example usage const mysql2 = require('mysql2'); const connection = mysql2.createConnection({ host: 'example.org', user: 'bob', password: 'secret', }); connection.execute('SELECT * FROM users', (err, results) => { if (err) throw err; console.log('Query results:', results); });
??? ??? ???? MySQL? Node.js ??????? ???? ???? ???? ??? ?? ? ??? ??? ? ????.
? ??? MySQL ??????? Node.js? ??? ??? ? ????? ?? ?????. ??? ??? PHP ??? ????? ?? ?? ??? ?????!

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MySQL ????? ?? ??? ?? ?????? ????? ???? ???? ?????. ??, ???? ??? ???? ??? ????? ?????. ?? ?? ?? ?? ??? ?????. ?? ??, ?? ? ??? ?? ???? ??? ????? ??? ???? ??????. ??, ???? ????? ??????? ? ??? ???? ?? ??? ?? ? ? ????? ?? ?? ? ???? ?? ????? ?? ??? ??? ??? ?????. ??, ??? ?? ??? ?? ??? ???? ????, ??? ??, ?? ???? ?? ? ??? ??? ?????. MySQL? readuncommitted ? readcommi? ?????.

MySQL? ?? ???? ?? ??? ??? ? A??, ?? MVCC ? GAP ?? ??? ?? ??? ?? ? ?? ???? ??? ???? ???? ?? ?? ??? ????. ?? ?? ??? ??? ?? (??)? ????? ??? ??? ????? ?? ?? ??? ????? 1. ??? ??? (read committed)? ?? ? ???? ?? ? ??? ?? ? ??? ?? ? ?? ?? ?? ?? ? ? ????. ???, ??? ??? ????? ??? ??;

MySQL? ? ????? ??? ??? ????? ?? ?? ??? ?? ???????. 1. Windows ??? : MySQL ?? ?????? ? ??? ????? (?? ??? ????? C : \ programfiles \ mysql \ mysqlserverx.x \ bin), "? ???"→ "??"→ "Advanced System ??"→ "?? ??", "??? ??", MySQlb in wors in mysqlb in wors in mysqlb in world in that the the the the the seel worl ?? ????? ?? ???? MySQL? ??????-Version Versification; 2.Macos ? Linux ??? : Bash ??? ?? ~/.bashrc ?? ~/.bash_

TOSECIBERYNECTTOEREMOTEMYSQLSERVER, USESSHTUNNENG, CONFIGUREMYSQLFORREMOTEACCESS, SETFIREWALLRULES ? CONSIDERSSLENCRYPTION .First, SpectionANSSHTUNNELWITHSSH-L3307 : LocalHost : 3306user@remote-Server-NandConnectViamySQL-H127.0.1-P3307.second, editmys

mysqlworkbench? ??? ?? ??? ?? ??? ?????. ?? ??? ?? ??? ?? ????. 1. Windows ???? %appdata %\ mysql \ workbench \ connections.xml? ????. 2. MacOS ???? ~/Library/ApplicationSupport/MySQL/Workbench/Connections.xml? ????. 3. ????? Linux ???? ~/.mysql/workbench/connections.xml ?? ~/.local/share/data/mysql/wor? ????.

AconnectionpoolisacacheofdatabaseConnection? ??? ??????

MySQL ??? ?? ??? ?? ?? ??? ?? ??? ??????. 1. ?? ?? ?? ?? ???? Slow_Query_Log ? Long_Query_Time; 2. ???? ??? ?? ??? ???? ? ????? query_time, lock_time, rows_examined? ?? ?? ??? ???? ????. 3. ??? ????? ???? ?? mysqldumpslow ?? pt-query idigest ??? ??????. 4. ??? ???? ??? ??, ??*???*, ??? ?? ?? ?? ?????. ?? ??, user_id? ???? ???? ?? ? ?? ?? ?? ??? ?? ???? ???? ? ????.

MySQLDump? MySQL ??????? ??? ??? ???? ???? ?????. ??????? ???? ?? ?? ? ?? ?? ???? SQL ??? ?????. 1. ?? ??? ????? ??? ?????? ??? ???? ??? SQL ???? ?????. 2. ??? ?????? ?? ??? ??? ???? TB ?? ???? ?? ???? ???? ????. 3. ???? ???-single transaction,-databases,-all-databases,-routines ?; 4. MySQL ??? ???? ?? ?? ?? ?? ?? ? ??? ?? ??? ???? ? ????. 5. ??? ????? ????? ?? ? ?? ??? ???? ?? ????.
