DISQLite3 v6.0.0 for Delphi 11-13.x (DCU's)

Download DISQLite3 v6.0.0 for Delphi 11-13.x (DCU's)

DISQLite3 implements a self-contained, embeddable, zero-configuration SQL database engine for Delphi (Embarcadero / CodeGear / Borland).

Overview
ACID transactions, even after system crashes and power failures.
Zero-configuration – no setup or administration needed.
Implements most of SQL-92.
A complete database is stored in a single disk file.
Supports terabyte-sized databases and gigabyte-sized strings and blobs. Self-contained: no external dependencies, no DLLs.
Small footprint and smart linking: Only required code is compiled in, adding as little as 300 KB code space only.
Full Text Search (FTS) with customizable tokenizer, prefix matching, and optional word stemming for 30 languages.
Database AES encryption with SHA256 key generator.
Db.pas is not required, which allows DISQLite3 to compile with all flavours of Delphi, including Delphi Standard and Delphi Personal.
Faster than popular database engines for most common operations.
Simple, easy to use API.
Database files created with DISQLite3 can also be accessed by Linux and MacOS using the SQLite3 libraries.
SQL-92 Support
DISQLite3 Drive Catalog Demo ApplicationDISQLite3 understands most of the SQL-92 language standard:

ALTER TABLE
ANALYZE
ATTACH DATABASE
BEGIN TRANSACTION
Comments
COMMIT TRANSACTION
CREATE INDEX
CREATE TABLE
CREATE TRIGGER
CREATE VIEW
DELETE
DETACH DATABASE
DROP INDEX
DISQLite3 Mathematical Expression Evaluator Demo Applicationdrop TABLE
DROP TRIGGER
DROP VIEW
END TRANSACTION
EXPLAIN
Expressions
INSERT
ON CONFLICT clause
PRAGMA
REINDEX
REPLACE
ROLLBACK TRANSACTION
SELECT
UPDATE
VACUUM
The complete SQL syntax is described in full length in the DISQLite3 HTML Help, part of the installation package.

Simple Programming Interface
DISQLite3 Database Encryption Demo ApplicationDISQLite3 provides a comprehensive list of functions and procedures to manage database records with ease and efficiency. It includes the full SQLite3 functionality, plus a number of Delphi specific extras:

AnsiString, UnicodeString / WideString, and Variant support.
Database and Statement wrapper classes.
TDataSet support.
TStream support for BLOBs.
Growing number of Delphi example projects.
Despite of its rich set of features, a DISQLite3 database application can be realized with just three different function calls.

Pro and Personal Editions
DISQLite3 comes in two editions: DISQLite3 Personal and DISQLite3 Pro.

DISQLite3 Personal is free for personal, educational, and non-commercial use. It omits some functionality of DISQLite3 Pro, but does not compromize on essential features like ACID transactions, virtually unlimited database size, full text search, and others.

DISQLite3 Pro is required for commercial use and may be purchased online. It adds functionality usually desired by advanced users. This includes SQL triggers and views, arbitrary encryption passwords, user-defined SQL functions, and more. Since DISQLite3 Pro is fully compatible to the Personal edition, it is possible to upgrade existing projects without any code changes.

The feature chart is available for a side-by-side comparison of the two editions.

DISQLite3 v6.0.0 – 7 Mar 2026

DISQLite changes:

Improve DISQLite3Ext:
- New sqlite3_api variable which can be set by extensions.
- Remove sqlite3_… prefix from sqlite3_api_routines method names, so they now match the original SQLite declarations.
- Add new sqlite3_… functions and procedures which call the respective sqlite3_api_routines method of sqlite3_api. For this to work, the sqlite3_api variable must have been assigned by the extension's entry point.
The carray() table-valued function is now enabled by default. sqlite3_carray_init is deprecated, no longer needed, and does nothing.
Update zlib to v1.3.2.

Update to SQLite Version 3.52.0:

Fix the WAL-reset database corruption bug.
Enhance ALTER TABLE to permit adding and removing NOT NULL and CHECK constraints.
Add the Query Result Formatter (QRF) extension for formatting the results of SQL queries for human readability or interchange output formats.
New built-in SQL functions: json_array_insert, and jsonb_array_insert.
New C-language interfaces:
- sqlite3_str_truncate
- sqlite3_str_free
- sqlite3_carray_bind_v2
- Add the SQLITE_PREPARE_FROM_DDL option to sqlite3_prepare_v3 which permits virtual table implementations to safely prepare SQL statements that are derived from the database schema.
- Added the SQLITE_UTF8_ZT constant which can be used as the encoding parameter to sqlite3_result_text64 or sqlite3_bind_text64 to indicate that the value is UTF-8 encoded and zero terminated.
- The SQLITE_LIMIT_PARSER_DEPTH option is added to sqlite3_limit.
- The SQLITE_DBCONFIG_FP_DIGITS option is added to sqlite3_db_config.
Query planner improvements:
- Always use a sort-and-merge algorithm for EXCEPT, INTERSECT, and UNION, since this is almost always faster than using a hash table.
- Improvements to join order selection in large multi-way joins on a star schema.
- Enhance the EXISTS-to-JOIN optimization so that the inserted JOIN terms are not required to be on the inner-most loops, as long as all dependencies for the EXISTS-to-JOIN loops are in outer loops.
- Enhance the omit-noop-join optimization so that it is able to omit a chain of joins that do not affect the output.
- Allow queries that use “GROUP BY e1 ORDER BY e2” where e1 and e2 are identical apart from ASC/DESC sort-orders to be optimized using a single index.
- Allow virtual tables to optimize DISTINCT in cases where the result-set of a query does not exactly match the ORDER BY clause.
Improvements to floating-point ↔ text conversions.
- Reimplemented to improve performance.
- Rounding is now done by default to 17 significant digits, instead of 15, as was the case for all prior versions. The sqlite3_db_config(SQLITE_DBCONFIG_FP_DIGITS) API can change this, if desired.
The body of TEMP triggers may now modify and/or query tables in the main schema.
Enhance VACUUM INTO so that if a URI filename is used as the target and that filename has a reserve=N query parameter with N between 0 and 255, then the reserve amount for the generated database copy is set to N.

Removals:

The experimental checkfreelist and checkindex extensions were removed from SQLite.