Sesame is an Open Source RDF Schema-based repository and querying facility. It is a scalable, modular architecture for persistent storage and querying of RDF and RDF Schema. It supports two query languages (SPARQL and SeRQL), and can use main memory or PostgreSQL, MySQL and Oracle 9i databases for storage.
SQL Uniform is a database comparison and SQL query program. It is a database client with a graphical user interface. It supports any kind of database and database servers to which there is an ODBC or JDBC standard driver. It has been tested on Access, Adabas D, DaffodilDB, dBASE, Excel, HSQL, IBM DB2, Interbase (Firebird), JDataStore, Linter (Relex), McKOI, Mimer, MSSQL, MySQL, Openlink Virtuoso, Oracle, Paradox, Pervasive (Btrive), Pointbase, PostgreSQL, Solid, SQLITE, Sybase, ThinkSQL, and Yard.