Here's a quick JDBC with HSQLDB tutorial to get you up and running with Java database connectivity and the popular HyperSQL database.

Create a Maven-based Java project in Eclipse. Configure the PostgreSQL JDBC Driver. Create a Java class that holds PostgreSQL's JDBC URL. Programmatically create a database table. Perform the four ...

To create a knowledge base, we will need ways to import multiple kinds of documents into the vector database. For this we can use loaders and parsers from libraries such as LangChain or LlamaIndex.