RapidQuery supports the following Databases: DB2, Firebird, Informix, Interbase, MySQL ,ODBC, OLEDB, Oracle, PostgreSQL, SQLBase, SQLServer, Sybase. To be specific DB2 is DB2 for mainframe (ZOS,MVS), Windows, Linux, Aix and Unix. The price of RapidQuery is $USD 125 which Radem-Soft believes is a reasonable price for the quality and the functionality of the product. Radem-Soft offers a 30 day trial period. We encourage you to download RapidQuery and try it out. Once the trial period ends, RapidQuery will have to be registered. This version is the first release on CNET Download.com.