SQL

What is the primary key in MySQL?

Within a given relation, a set of one or more attributes having values that are unique within the relation and thus can uniquely identify that tuple, is said to be the primary key of the relation.

1 min read

Introduction to DBMS

A database system is a computer-based record-keeping system. The collection of data, usually referred to as the database, contains information about one particular enterprise.

1 min read