DISQLite3 Pro 5.22.0 D4-XE10.2: A Powerful and Flexible Database Engine for Delphi and C++Builder

If you are looking for a self-contained, embeddable, zero-configuration SQL database engine for Delphi and C++Builder, you should check out DISQLite3 Pro 5.22.0 D4-XE10.2. This is the latest version of the popular DISQLite3 library, which implements most of the SQL-92 language standard and supports terabyte-sized databases and gigabyte-sized strings and blobs.

In this article, we will explore some of the features and benefits of using DISQLite3 Pro 5.22.0 D4-XE10.2 for your database applications.

What is DISQLite3 Pro?

DISQLite3 Pro is a Delphi wrapper for the SQLite3 library, which is a widely used open source database engine that can store and manipulate data in a single disk file. SQLite3 is known for its reliability, performance, and portability across different platforms and devices.

DISQLite3 Pro adds some Delphi-specific extras to the SQLite3 functionality, such as:

AnsiString, UnicodeString / WideString, and Variant support.
Database and Statement wrapper classes.
TDataSet support.
TStream support for BLOBs.
Database AES encryption with SHA256 key generator.
Full Text Search (FTS) with customizable tokenizer, prefix matching, and optional word stemming for 15 languages.
Growing number of Delphi example projects.

DISQLite3 Pro also includes the complete SQLite3 HTML Help, which describes the full SQL syntax and the available functions and procedures.

Why use DISQLite3 Pro?

There are many reasons why you might want to use DISQLite3 Pro for your database applications, such as:

It is easy to use: You don’t need to install or configure anything, just add the DISQLite3 unit to your project and you are ready to go. You can create and access a database with just three function calls.
It is fast: DISQLite3 Pro has a small footprint and smart linking, which means that only the required code is compiled in, adding as little as 300 KB code space only. It also has a high-performance query optimizer and a built-in cache mechanism that can speed up your queries.
It is reliable: DISQLite3 Pro supports ACID transactions, even after system crashes and power failures. It also has a robust error handling system that can prevent data corruption and loss.
It is flexible: DISQLite3 Pro can handle various data types, such as integers, floats, strings, blobs, dates, times, booleans, nulls, and variants. It also supports user-defined functions, collations, aggregates, and virtual tables. You can extend its functionality with custom extensions or loadable modules.
It is portable: DISQLite3 Pro can run on any Windows platform that supports Delphi or C++Builder, from Windows XP to Windows 10. It can also access database files created by Linux and MacOS using the SQLite3 libraries.

How to get started with DISQLite3 Pro?

If you want to try out DISQLite3 Pro 5.22.0 D4-XE10.2 for yourself, you can download it from Developer.Team, which is a website that offers various software development tools and resources for developers. You will get a zip file that contains the library files, the documentation files, and some demo projects that you can use as examples or templates for your own applications.

To use DISQLite3 Pro in your project, you just need to add the DISQLite3 unit to your uses clause and declare a variable of type TDISQLite3Database to represent your database connection. Then you can use the following functions to create and access your database:

// Create a new database file or open an existing one
function TDISQLite3Database.Create(const FileName: String): Boolean;
// Execute an SQL statement
function TDISQLite3Database.Execute(const SQL: String): Integer;
// Prepare an SQL statement for repeated execution
function TDISQLite3Database.Prepare(const SQL: String): TDISQLite3Statement;

You can also use the TDISQLite3Statement class to bind parameters, retrieve results, and iterate over rows. For more details on how to use these classes and functions, you can refer to the DISQLite3 HTML Help or the demo projects included in the zip file.

What’s new in DISQLite3 Pro 5.22.0 D4-XE10.2?

DISQLite3 Pro 5.22.0 D4-XE10.2 is the latest version of the library, released on July 28, 2022. It includes some bug fixes and improvements over the previous version, such as:

Support for Delphi 11 Alexandria and C++Builder 11 Alexandria.
Support for SQLite 3.36.0, which adds new features and enhancements to the SQL language and the database engine.
Support for WITHOUT ROWID virtual tables to be writable if the PRIMARY KEY contains exactly one column.
Improved performance and memory usage of the FTS tokenizer and stemmer.
Fixed a potential memory leak when using encryption.

You can find the complete list of changes and updates in the DISQLite3 HTML Help or in the changelog.txt file included in the zip file.

How to use DISQLite3 Pro in your projects?

Using DISQLite3 Pro in your projects is very simple and straightforward. You just need to follow these steps:

Download and unzip the DISQLite3 Pro 5.22.0 D4-XE10.2 zip file from Developer.Team.
Copy the DISQLite3.pas and DISQLite3Api.pas files to your project folder or to a common library folder.
Add the DISQLite3 unit to your uses clause in your Delphi or C++Builder project.
Declare a variable of type TDISQLite3Database to represent your database connection.
Use the Create function to create a new database file or open an existing one.
Use the Execute function to execute any SQL statement that does not return a result set, such as CREATE TABLE, INSERT, UPDATE, DELETE, etc.
Use the Prepare function to prepare any SQL statement that returns a result set, such as SELECT, PRAGMA, etc. This will return an object of type TDISQLite3Statement that you can use to bind parameters, retrieve results, and iterate over rows.
Use the Close function to close the database connection when you are done.

For more details and examples on how to use DISQLite3 Pro in your projects, you can refer to the DISQLite3 HTML Help or the demo projects included in the zip file.

What are the advantages of DISQLite3 Pro over other database engines?

DISQLite3 Pro has many advantages over other database engines, especially for embedded and mobile applications. Some of these advantages are:

It is self-contained: DISQLite3 Pro does not require any external dependencies, DLLs, or installation procedures. It is a single unit that you can easily integrate into your project.
It is zero-configuration: DISQLite3 Pro does not need any setup or administration. It automatically handles the creation, maintenance, and optimization of the database file.
It is cross-platform: DISQLite3 Pro can run on any Windows platform that supports Delphi or C++Builder, and it can also access database files created by Linux and MacOS using the SQLite3 libraries.
It is lightweight: DISQLite3 Pro has a small footprint and smart linking, which means that it adds as little as 300 KB code space only to your project. It also has a low memory and CPU usage, which makes it ideal for resource-constrained devices.
It is scalable: DISQLite3 Pro can handle large amounts of data, up to terabytes in size and gigabytes in individual strings and blobs. It also supports concurrent access by multiple threads or processes.
It is secure: DISQLite3 Pro supports database encryption with AES-256 and SHA-256 algorithms, which can protect your data from unauthorized access or tampering.
It is extensible: DISQLite3 Pro supports user-defined functions, collations, aggregates, and virtual tables, which allow you to customize and enhance its functionality. You can also load external extensions or modules to add new features or capabilities.

What are some use cases for DISQLite3 Pro?

DISQLite3 Pro can be used for a wide range of applications that require a fast, reliable, and portable database engine. Some examples of use cases are:

Embedded applications: DISQLite3 Pro can be embedded into devices such as smart phones, tablets, cameras, GPS systems, etc., to store and manage data locally without requiring a network connection or a server.
Mobile applications: DISQLite3 Pro can be used to develop cross-platform mobile applications that can run on Windows, Android, iOS, etc., and that can store and sync data offline or online.
Desktop applications: DISQLite3 Pro can be used to develop desktop applications that can run on Windows XP to Windows 10, and that can store and access data locally or remotely.
Web applications: DISQLite3 Pro can be used to develop web applications that can run on any web server that supports CGI or ISAPI, and that can store and query data in a single file without requiring a complex database server.
Data analysis: DISQLite3 Pro can be used to perform data analysis and manipulation using SQL queries and expressions. It also supports full text search and various mathematical functions.
Data backup: DISQLite3 Pro can be used to backup your data in a single file that can be easily copied or transferred to another location or device.

Conclusion

In conclusion, DISQLite3 Pro 5.22.0 D4-XE10.2 is a powerful and flexible database engine for Delphi and C++Builder that can help you create fast, reliable, and portable database applications. It has many features and benefits that make it superior to other database engines, especially for embedded and mobile applications. It is easy to use, fast, reliable, flexible, portable, lightweight, scalable, secure, and extensible. It also supports most of the SQL-92 language standard and the latest SQLite 3.36.0 features.

We hope you enjoyed this article and learned something new about DISQLite3 Pro 5.22.0 D4-XE10.2. If you have any questions or feedback, please feel free to leave a comment below. Thank you for reading!

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