SymmetricDS promises to sync your data, but how do you know it really worked? How do you really know 2 databases are in sync? Or, maybe you have well-meaning users that come along after the sync, changing data unexpectedly, and throwing production out of whack.
Whatever the case, wouldn’t it be nice to be able to compare any 2 databases, and know exactly what the differences are and be able to prove they are in sync? That’s where a new, experimental feature of SymmetricDS comes in. It’s called simply dbcompare. Dbcompare is slated for SymmetricDS 3.8, but if you watch closely, it’s fully included starting in SymmetricDS 3.7.30.