【趙渝強老師】MySQL的全量日誌檔案

赵渝强老师發表於2024-11-21

MySQL的全量日誌(general log)會記錄MySQL資料庫所有操作的SQL語句,包含select和show。預設情況下,禁用全量日誌。影片講解如下:
https://www.bilibili.com/video/BV1EaYkeZEKg/?aid=112954267798...

下面透過具體的步驟來演示如何使用全量日誌。
(1)檢視是否啟用全量日誌

mysql> show variables like '%general_log%';

# 輸出的資訊如下:
+------------------+-----------------------------------+
| Variable_name    | Value                             |
+------------------+-----------------------------------+
| general_log      | OFF                               |
| general_log_file | /usr/local/mysql/data/mysql11.log |
+------------------+-----------------------------------+

(2)臨時啟用全量日誌

mysql> set global general_log=ON;

(3)執行查詢

mysql> show databases;
mysql> use demo1;
mysql> select * from test2;

(4)檢視全量日誌

cat /usr/local/mysql/data/mysql11.log

# 輸出的資訊如下:
/usr/local/mysql/bin/mysqld, Version: 8.0.20 (MySQL Community Server - GPL). 
started with:
Tcp port: 3306  Unix socket: /tmp/mysql.sock
Time                             Id Command    Argument
2022-02-20T03:42:50.496566Z      8 Query       show databases
2022-02-20T03:42:50.498045Z      8 Query       SELECT DATABASE()
2022-02-20T03:42:50.498210Z      8 Init DB       demo1
2022-02-20T03:42:51.576117Z      8 Query       select * from test2

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