KeyDB is a powerful but compact database engine which groups multiple tables into a single database file. The database engine compiles into your executable so there are no associated files to distribute. Works with Borland Delphi and Kylix.KeyDB is a multi-user database engine and has a small footprint. KeyDB tables are TDataset descendants and will work with standard data-aware controls.There is support for 1. linux or windows operating deployment 2. SQL 3. security - user and groups4. encryption 5. in-memory tables 6. transactions 7. optimized filters 8. user counting9. Blob Compression