A 20-year legacy card system replaced in one day
How the card office behind a New Zealand tertiary institution moved 12,500 cardholder records off an on-premises SQL Server database, with no pause in issuing, no inbound firewall rule and no issue-number drift.
- 12,703 of 12,703 source rows accounted for at cutover
- One day: rehearsed on a restored copy in the morning, live by evening
- Two-way sync keeps the old system current, so nothing hinged on a switch-off date