1)   DB Explorer 3.0.0
Compare two database schemas and/or table data rows and report differences. Synchronise the differences for one or other database. Sync Schema generates the SQL DDL statements. Sync Data either transfers the rows or generates SQL DML statements.
database utility, compare database, view database, database difference, schema, metadata, compare tables, compare data, compare records, synchronise database,

 2)   DatabaseBridge 1.006
DatabaseBridge is a powerful cross-DBMS data migration, data comparison and distributed query tool that also performs validation of flat data and is a multi-DBMS browser. A cross-DBMS data transfer of a million records can be completed in minutes
Skyway Technology, data transfer, data integration, data migration, data validation, database conversion, distributed query, database utility, compare data, copy databases,

 3)   VData 2.3
This purpose of this program is verify/compare data. A single file may be compared with another single file. An entire disk or disk structure (folder with files and nested folders) may be compared with a copy on the same or a different device
verify data, compare data, compare files, compare folders, compare disks, compare, files, folders, disks,

 4)   DTM Data Comparer 1.03.23
DTM Data Comparer is a visual tool for data comparison and synchronization. The program successively views the contents of both tables basing on the order of ascending of unique key values and shows differences or creates synchronization script.
compare data, compare tables, compare data rows, data synchronization, db comparision, db sync,