Get an overview of JDBC's architecture, then learn how to connect to a database and handle SQL queries and responses with PreparedStatements, transactions, connection pooling, and more.

What is connection pooling? Connection pooling is a strategy that is used to minimize the cost associated with opening and closing connections to the database.

If you want connection pooling (and I assume a shared cache against the database) I don't think you have any choice but write a separate daemon.