Two identical dbs should be identical
Show new record
Rename method to better reflect purpose
Pass handles rather than filenames
Simplify tests
Test for deleting a record
Open databases in a different way
Can detect simultaneous removal and addition
Can now detect changed records
Test with a larger number of records
Can do the calculation in pages
Make test use smaller page size than default
Stop occasional test failure due to deleting last record
Show added or removed tables
Can now detect schema changes
Extract slightly more general method
Extract method
Extract method to execute same query on 2 dbs
Rename variables
Don't return unused information