SQL Examiner Suite 2010 R2 is a professional solution that covers all your SQL database comparison and synchronization needs. It allows you to compare and synchronize both schema and data and to avoid routine manual work.
PowerDIFF for Oracle is a powerful and easy to use schema comparison tool for Oracle databases. It allows both visual comparisons and diff-and-merge operations. Output is done visually or as SQL difference script. Prices range from 290 to 490 EUR.
Dbmover for MSSQL to Oracle is a powerful tool to import MSSQL contents into Oracle. It also lets you perform a query and use the query result as a data source during migration. It allows to automate and schedule the conversion process.
Dbmover for Mysql to Oracle is a powerful tool to import MySQL contents into Oracle. It also lets you perform a query and use the query result as a data source during migration. It allows to automate and schedule the conversion process.
DBConvert for Oracle and Access: a tool for a quick and accurate database conversion from Oracle database to Access and from Access database to Oracle db. Unicode support, Primary keys and Indexes conversion, Interactive multilingual (GUI) mode, etc.
EMS Data Pump for Oracle is an excellent migration tool for converting databases and importing table data from an ADO-compatible source (e.g. MS Access, MS SQL database or any other database with ADO support) to Oracle databases.