Primaarvõtit
Primaarvõtit, often translated as primary key, is a fundamental concept in relational database management systems. It is a column or a set of columns that uniquely identifies each record in a database table. The primary key ensures that each row in the table can be unambiguously referenced and accessed.
There are several key characteristics of a primary key. Firstly, it must contain unique values; no two
When designing a database, selecting an appropriate primary key is an important decision. Often, an integer
The primary key serves multiple purposes. It is used to establish relationships between different tables in