james.billings wrote:You're right, you can't do it. SQL Data Compar works on a Source > Target synchronization method, it's not bidirectional.
You'd need to run it twice to get records added in each database to end up in the other. You will also need to set a selection so that just "new" records in the source are added - otherwise the default behaviour would be to remove records from the target that didn't exist in the source.
In short - a standard one-way sync would try to make the databases identical.
You may encounter other difficulties- for instance, it won't be able to handle records that have been changed in both databases (once the first sync completes, the records will match as DB2 will be updated to match DB1, and the second sync wouldn't see any differences to send back the other way)
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