Zeos is a database access suite for Delphi and Lazarus/FreePascal. The purpose of this suite is to be a complete framework for accessing the most varied databases. In the following article, we will study one of its main components: ZQuery. This component is responsible for executing SQL sentences such as inserting, updating and deleting data from the base. But also, and especially, query data from it.
Although ZQuery is specific to Zeos, the described concept of this component also exists in other database access suites, so even if you don't use Zeos to execute queries when studying this component you will understand other access frameworks as well. Follow the link: