Absolute Database - Delphi database system. This BDE alternative is free for personal use.

Absolute Database Features
No BDE
no DLLs
SQL'92 (DDL & DML) support
Single-user and mutli-user mode (file-server)
Single database file
Unmatched ease-of-use
100% compatibility with standard DB-aware controls
Strong encryption
BLOB compression
Full source code available
Royalty-free