Absolute Database is a Delphi database engine which lets you forget the Borland Database Engine (BDE). This BDE replacement is the compact, high-speed, robust and easy-to-use database engine. With Absolute Database you will not need special installation and configuration, it compiles right into your EXE. Make your application faster and smaller with Absolute Database BDE alternative!

An individual may use Absolute Database Personal in a project if he / she is the only user of this project. If your project is public or if you represent a company, you must order commercial edition of Absolute Database.

Key Features:

No BDE; no DLLs
Single-file database
SQL'92 (DDL & DML) support
Compatible with standard and third-party database controls
Single-user and multi-user mode (file-server)
Works great on all versions of Windows - from 98 to the latest, doesn't require any updates or service packs
Ultra-fast in-memory tables
Unmatched ease-of-use
Strong encryption
BLOB compression
Free for personal use
Full source code available
Royalty-free distribution

Features
Ease of Deployment
No BDE, no DLLs
No special installation or configuration required
Database engine compiles right into EXE
Single-file database format
Database file could be merged with the application EXE file
High Speed
Advanced cache management and buffering architecture
Sophisticated SQL query and filter optimizer
Special optimized database engine for temporary results of SQL queries
Fast B*-Tree indexes with high-speed on thousands and on millions of records
Buffered transactions for batch inserts, updates and deletes
In-memory tables for fast operations with data loaded into memory
Optimization for read-only databases, such as databases on CD
High-concurrency design for multi-threaded applications
Ultra-fast in-memory tables
Multi-User
Zero-admin file-server
Automatic record and table locking
Automatic detection of changes made by other users
Configurable limit of concurrent connections
Easy switching between single-user and multi-user mode
Full transactions support with ReadCommited isolation level
SQL Support
SELECT with DISTINCT, INNER LEFT, RIGHT, FULL and OUTER JOIN, GROUP BY and ORDER BY clauses
CREATE TABLE, DROP TABLE, ALTER TABLE statements
CREATE INDEX, DROP INDEX statements
INSERT, UPDATE, DELETE statements
BETWEEN, IN, LIKE, IS NULL, EXISTS operators
Aggregate functions COUNT,SUM,MIN,MAX,AVG
Most of all SQL'92 arithmetic, logical, date-time and string functions and operators
Data types conversion by function CAST
SQL scripts (multiple statements separated by ';')
Parameters in queries
SELECT from several databases in one query
Correlated and non-correlated subqueries
Compactness
Small size of code added into the application by the database engine units
Small database file size achieved by customizable page size, compression of table metadata and other special means
Automatic free space recycling for data records, index pages, and BLOB blocks
Fast BLOB data compression
Short indexes for string fields
Low memory consumption
Compatibility
Support of most of TTable field data types, including BLOB fields
Full compatibility with standard DB-aware visual controls such as QuickReport, DBGrid, DBNavigator, DBImage, DBMemo, DBRichEdit and others
Calculated and lookup fields
Most of TDatabase, TQuery and TTable properties, methods and events
Support for the IProvider interface (TClientDataSet)
Functionality
Unicode support in String and Memo fields
Multiple-fields indexes with descending, ascending, case-sensitive and insensitive options
Shareable tables
Default values support
Min, max and not null constraints on field values
Export to SQL script (reverse engineering)
Security
Strong encryption of database file
Variety of supported encryption algorithms: Rijndael, the Advanced Encryption Standard (AES) winner 128 bit key, Rijndael 256 bit key, Blowfish 448 bit key, Twofish 128 bit key, Twofish 256 bit key, Square, Single DES and Triple DES
Reliability
Repair database in case of hardware failure or operating system error caused by another application
Auto-detect of database corruption and automatic repair of database file
Convenience
Table restructuring being performed in the easiest way keeping all the existing data
Data importing from and exporting to any dataset
Internationalization / localization support by use of current system locale
Displaying progress during potentially slow operations with the tables and databases
Utilities
DBImportExport utility to transfer your existing tables from database systems with BDE driver, such as Paradox, Interbase, Access, Oracle, SQL Server to Absolute Database format and vice versa.
Absolute Database Manager to manage a database easily and to perform all supported operations with tables and database file
With Absolute Database Manager you could also easily execute SQL queries
All utilities come with full source code and can be used as an advanced examples
Ease of Development
Full compatibility with TTable, TQuery, TSession and TDatabase components
Extensive Developer's Manual covering every development issue.
Large number of demos illustrating wide range of use cases
Prompt and responsive technical support
Cost-Effectiveness
100% royalty-free, i.e. there is no additional licensing fees no matter how many times you deploy the application
Flexible licensing: source code and no source code versions, multi-developers licenses

Target Development Environment:
Delphi 4
Delphi 5
Delphi 6
Delphi 7
Delphi 2005
Delphi 2006
Delphi 2007
Delphi 2009
Delphi 2010
Delphi XE
Delphi XE2 (32 and 64 bit)
Delphi XE3 (32 and 64 bit)
Delphi XE4 (32 and 64 bit)
Delphi XE5 (32 and 64 bit)
Delphi XE6 (32 and 64 bit)
Delphi XE7 (32 and 64 bit)
Delphi XE8 (32 and 64 bit)
Delphi 10 (32 and 64 bit)
Delphi 10.1 (32 and 64 bit)
Delphi 10.2 (32 and 64 bit)
Delphi 10.3 (32 and 64 bit)
Delphi 10.4 (32 and 64 bit)
Delphi 11 (32 and 64 bit)
Delphi 12 (32 and 64 bit)
Turbo Delphi Professional
C++ Builder 4
C++ Builder 5
C++ Builder 6
C++ Builder 2006
C++ Builder 2007
C++ Builder 2009
C++ Builder 2010
C++ Builder XE
C++ Builder XE2
C++ Builder XE3
C++ Builder XE4
C++ Builder XE5
C++ Builder XE6
C++ Builder XE7
C++ Builder XE8
C++ Builder 10
C++ Builder 10.1
C++ Builder 10.2
C++ Builder 10.3
C++ Builder 10.4
C++ Builder 11
C++ Builder 12
Turbo C++ Professional
Trial and Personal editions of Delphi are not supported