what does that mean 1:m relationship between student and course table?

What is a 1 M relationship?

• When we say there is a 1:m relationship between two entities, it. means that for each occurrence of one entity there is one or many. occurrences of a related entity.

What do you mean by one-to-many relationships between the class and student table?

One student can have many classes. Many classes may have many student. Many student may have many classes.

What relationship exists between course and student?

A student and a course are entities, while an enrollment is a relationship between a student and a course. Similarly, an inventory and sales database might store information about products, customers, and sales. A product and a customer are entities, while a sale is a relationship between a customer and a product.

What do you mean by a one-to-many relationship between teacher and class table?

Answer: Explanation: In a "class roster" database, a teacher may teach zero or more classes, while a class is taught by one (and only one) teacher. This kind of relationship is known as one-to-many. ... The one-to-many relationship cannot be represented in a single table.Jul 26, 2021

What do you mean by one-to-many relationship between?

In a relational database, a one-to-many relationship exists when one row in table A may be linked with many rows in table B, but one row in table B is linked to only one row in table A. It is important to note that a one-to-many relationship is not a property of the data, but rather of the relationship itself.

What do you mean by one-to-many relationship example?

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.

What type of relationship exists between teacher table and class table?

This kind of relationship is known as one-to-many. The one-to-many relationship cannot be represented in a single table. For example, in a "class roster" database, we may begin with a table called Teachers, which stores information about teachers (such as name, office, phone, and email).Jul 23, 2018

Which one of these are used to express the relationship among relationship?

Explanation: An ERD can also be referred as Entity Relationship Model. It is actually a graphical representation which is used for depicting the relationships among the objects, people, concepts, places or any kinds of events within an IT environment.Apr 23, 2019

What does single table refer to choose two?

What does single table refer to? ( Choose Two) (Choose all correct answers) A database where all of the data is stored in one large table. Non-relational systems that typically store each table and index in separate. files and often do not support the SQL language.

Which key represents the relationship between tables?

foreign keyA foreign key helps to define the relationship among tables . This unique key communicates one or more interrelationships in a relational database between two or more tables.

What do u mean by one-to-many relationship Mcq?

Explanation: We can understand the "one to many" relationship as a teacher who may have more than one class to attend.

Which in a table represents a relationship among a set of values?

Discussion ForumQue.A ________ in a table represents a relationship among a set of values.b.Keyc.Rowd.EntryAnswer:Row1 more row