Acceptance Criteria

• The command can trigger the following database transactions:
  • write banner impression data
  • get date of the last successful processing
  • determine if the banner keyword for a given banner name has already been fetched

Implementation Notes

• The date of the last successful processing can be retrieved by MAX( date ).
• Date needs to be converted to the right time zone.
• The legacy tables will stay for now, prefix the table names with a sensible prefix that will be removed later
• Create a migration for creating the new tables
• It's up to you if you want to create a full Doctrine ORM mapping or use SQL and the database connection directly