Creating Tables

The act of creating tables aims to make logical containers that persistently hold data that belongs together. Many companies create tables for many reasons, for example, tracking employee attendance, revenue tracking, and statistics. The common goal is to provide a service for applications that make sense of it. How do these database engines control who can access what data? There are basically two approaches. The first one is Access Control Lists (ACLs), which is a simple yet powerful approach. ACL security logic tells us which user has which permissions, such as CREATE, UPDATE, and DELETE. The second approach involves inheritance and roles. This is more robust and is better suited for big enterprises. Before using a database engine, there used to be a precheck to see what the size would be and how many users would use it. There is no point in shooting a sparrow with a shotgun, and there is no shoe size that fits all. It all depends on the situation. Postgres uses...