DISQLite3 v5.44.0 for Delphi 11.3 Alexandria
DISQLite3 v5.44.0 for Delphi 11.3 Alexandria
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 15 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.
DISQLite3 v5.44.0 – 17 May 2023
Add the FTS5 secure-delete command. This option causes all forensic traces to be removed from the FTS5 inverted index when content is deleted.
Enhance the JSON SQL functions to support JSON5 extensions.
The SQLITE_CONFIG_LOG and SQLITE_CONFIG_PCACHE_HDRSZ calls to sqlite3_config are now allowed to occur after sqlite3_initialize.
New sqlite3_db_config options: SQLITE_DBCONFIG_STMT_SCANSTATUS and SQLITE_DBCONFIG_REVERSE_SCANORDER.
Query planner improvements:
Enable the “count-of-view” optimization by default.
Avoid computing unused columns in subqueries.
Improvements to the push-down optimization.
Add the ability for application-defined SQL functions to have the same name as join keywords: CROSS, FULL, INNER, LEFT, NATURAL, OUTER, or RIGHT.
Enhancements to PRAGMA integrity_check:
Detect and raise an error when a NaN value is stored in a NOT NULL column.
Improved error message output identifies the root page of a b-tree when an error is found within a b-tree.
Allow the session extension to be configured to capture changes from tables that lack an explicit ROWID.
Added the subsecond modifier to the date and time functions.
Negative values passed into sqlite3_sleep are henceforth interpreted as 0.
The maximum recursion depth for JSON arrays and objects is lowered from 2000 to 1000.
Extended the built-in printf() function so the comma option now works with floating-point conversions in addition to integer conversions.
Miscellaneous bug fixes and performance optimizations
Add the FTS5 secure-delete command. This option causes all forensic traces to be removed from the FTS5 inverted index when content is deleted.
Enhance the JSON SQL functions to support JSON5 extensions.
The SQLITE_CONFIG_LOG and SQLITE_CONFIG_PCACHE_HDRSZ calls to sqlite3_config are now allowed to occur after sqlite3_initialize.
New sqlite3_db_config options: SQLITE_DBCONFIG_STMT_SCANSTATUS and SQLITE_DBCONFIG_REVERSE_SCANORDER.
Query planner improvements:
Enable the “count-of-view” optimization by default.
Avoid computing unused columns in subqueries.
Improvements to the push-down optimization.
Add the ability for application-defined SQL functions to have the same name as join keywords: CROSS, FULL, INNER, LEFT, NATURAL, OUTER, or RIGHT.
Enhancements to PRAGMA integrity_check:
Detect and raise an error when a NaN value is stored in a NOT NULL column.
Improved error message output identifies the root page of a b-tree when an error is found within a b-tree.
Allow the session extension to be configured to capture changes from tables that lack an explicit ROWID.
Added the subsecond modifier to the date and time functions.
Negative values passed into sqlite3_sleep are henceforth interpreted as 0.
The maximum recursion depth for JSON arrays and objects is lowered from 2000 to 1000.
Extended the built-in printf() function so the comma option now works with floating-point conversions in addition to integer conversions.
Miscellaneous bug fixes and performance optimizations
Only for V.I.P
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