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mysql-history

Helps creating audit tables and triggers to track data changes in MySQL.

On execution, mysql-history connects to a MySQL database and creates:

  • audit tables as copies of source tables (1 for every source table) with the following columns added:
    • hst_id INT PRIMARY KEY
    • hst_modified_date DATETIME
    • hst_type VARCHAR(2)
  • triggers on INSERT, UPDATE and DELETE on source tables
    • every trigger inserts modified data to audit table specifying hst_type as 'I', 'U' or 'D'

When source tables change just re-run the script and it will add new columns to audit tables and modify datatypes of existing ones if possible.