Question

Looking to move data from a table A to history table B every X days for data that is Y days old and then remove the data from history table B that is older than Z days.

Just exploring different ways to accomplish this. So any suggestions would be appreciated.

Example for variables
X – 7days
Y – 60days
z – 365days

Thank you

Answer 1

CREATE PROCEDURE prc_clean_tables (Y INT, Z INT)
BEGIN
        BEGIN TRANSACTION;

        DECLARE _now DATETIME;
        SET _now := NOW();

        INSERT
        INTO    b
        SELECT  *
        FROM    a
        WHERE   timestamp < _now - INTERVAL Y DAY;
        FOR UPDATE;

        DELETE
        FROM    a
        WHERE   timestamp < _now - INTERVAL Y DAY;

        DELETE
        FROM    b
        WHERE   timestamp < _now - INTERVAL Z DAY;

        COMMIT;
END