Use Object Relational Data Access to model entities and relations with an object oriented approach. Centralize business logic inside dataclasses, apply lifecycle events and filters, and keep data rules consistent and scalable.
Vector data is at the heart of modern AI-powered features: semantic search, recommendation engines, RAG (Retrieval-Augmented Generation) pipelines, an...
Keeping track of which indexes exist on a table and how they are configured used to require manual inspection through the Structure Editor. With the n...
For several years your 4D app has been running in client-server mode. This is a common way to deploy an application. For some use cases, such as work...
In the Semantic search: querying by vector similarity post, we introduced how to query entities using vector similarity, a powerful way to find the mo...
This feature keeps going on with a new paradigm: handle data in an event-driven way. The 4D 21 provides a complete series of events related to databas...
In this previous blog post, you discovered that ORDA entities can now have a constructor, allowing entity instantiation to follow a complete object-or...
ORDA is a core long-term feature that opens up a world of new possibilities in 4D. We keep enhancing ORDA to help you write powerful code. As a resul...
The 4D language supports the concept of classes and thus, the concept of constructor. On the another hand, the ORDA abstraction layer, through Data M...
In modern application development, securing and finely managing data access are essential. Thanks to the restrict event in 4D, it is possible to dynam...
Today, you can benefit from a powerful feature to filter access to data, which is essential for preventing malicious access to your application. This...
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