mysql-bin.000001 This is the MySQL binary log file – a binary file used by the MySQL server to record all modification operations performed on the database. When the database executes statements such as INSERT, UPDATE, or DELETE, the server writes these operations to the binary log file; these operations are recorded in binary format rather than as SQL queries.
Using binary log files, the MySQL server can perform critical tasks such as replication, recovery, and failover. The purpose of MySQL binary logs is to record database changes, thereby making backup and replication operations more efficient and reliable; they can also be used for time-stamped data recovery.
mysql-bin.000001 This is the first binary log file; subsequent binary log files are named accordingly. mysql-bin.000002、mysql-bin.000003 When the binary log file reaches a certain size, it will automatically switch to the next file.
