Hello!
Just got on new job in IT company. There are exist production 8.2 instance and test 9.1 instance on another computer
Test instance already have modified scripts and views for new version and use SQL backup from july.
How the best to migrate new data (opportunities, orders) from 8.2 to 9.1 and be sure that:
1. Only sales data will migrate (scripts and views will stay as it already in test instance)
2. Data integrity will be 100%
Thank you for any advice