Apps similar to DataWeigher include SQL Server Comparison Tool. It's paid, but Open DBDiff is free. Other options are Red Gate SQL Compare, SQL Data Compare, dbForge Data Compare for SQL Server and dbForge Schema Compare for SQL Server. You can choose from more than 10 Database Comparison Tools like DataWeigher for Windows, Mac and Linux.
Easily compare access databases with AccessDiff. AccessDiff compares objects with the same name between two Access databases. It also detects missing objects in either the source or destination. Records are compared based on the primary key.
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Compare'EM is a very simple to use utility to analyze a pair of related Microsoft Access databases, determine what has changed from one to the other, and generate VBA code to propagate those changes.
Compares the schema of two database instances, showing the differences and the migration script; It supports MS SQL 2008 and higher, MySQL 5.6 and higher and PostgreSQL 9 and higher.
