MySQL Data Archiving: Expert Techniques

There are several methods to achieve MySQL data archiving.

1. Partitioning in MySQL allows tables to be divided based on specific columns or expressions, enabling data to be distributed across different partitions based on time range. Archiving data is made possible by moving expired data into an archive partition, effectively achieving data archiving.
2. Backup and restore: You can use MySQL backup tools such as mysqldump or Percona XtraBackup to back up the data to a separate file that you want to archive. Then, you can restore the needed data by using the backup file.
3. Export and import: You can utilize MySQL’s export tools, such as mysqldump or the SELECT INTO OUTFILE statement, to export the data to be archived into a separate file. Then, you can import the data to the desired location using import tools, like the LOAD DATA INFILE statement.
4. Stored procedures and events: you can write stored procedures or events to periodically check the data in a table and move expired data to an archive table. You can use the INSERT INTO SELECT statement to achieve the data transfer operation.

These are several common methods of archiving MySQL data, the specific implementation depends on the actual needs and environment.