How do you represent a one to many relationship in a database?
Similarly, what is a one to many relationship in a relational database give an example with your answer?
In a one-to-many relationship, one record in a table can be associated with one or more records in another table. For example, each customer can have many sales orders. In this example the primary key field in the Customers table, Customer ID, is designed to contain unique values.
Beside above, in which condition is one to many relationship used? In relational databases, a one-to-many relationship occurs when a parent record in one table can potentially reference several child records in another table.
Similarly, what are the 3 types of relationships in a database?
There are three specific types of relationships that can exist between a pair of tables: one-to-one, one-to-many, and many-to-many.
How do you create a one to many relationship table?
Many-to-many (M:M) To establish a many-to-many relationship, create a third table called "ClassStudentRelation" which will have the primary keys of both table A and table B. One to one (1-1) relationship: This is relationship between primary & foreign key (primary key relating to foreign key only one record).