With so many limitations, finding use cases for Stretch DB does not seem to be an easy task. You would need tables without constraints and rare data types that are not involved in relations with other tables and that don't use some special SQL Server features. Where to find them? As potential candidates for stretching, you should consider historical or auditing and logging tables.
Use cases for Stretch Database
Archiving of historical data
Historical or auditing data is commonly produced automatically by database systems and does not require constraints to guarantee data integrity. In addition to this, it is usually in large data sets. Therefore, historical and auditing data can be a candidate for using the Stretch...