Introduction In a relational database, a relationship is formed by correlating rows belonging to different tables. A table relationship is established when a child table defines a Foreign Key column that references the Primary Key column of its parent table. Every database table relationship is, therefore, built on top of Foreign Key columns, and there can be three table relationship types: one-to-many is the most common relationship, and it associates a row from a parent table to multiple rows in a child table. one-to-one requires the child table Primary Key to be… Read More