U2 - DB FEEDBACK TEST

What is the "One to Many" relationship?

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What is the Entity-Relationship Diagram?

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What is the "Many to Many" relationship?

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What is a "One to One" relationship?

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How are you feeling today?

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What is the Relational Model?

• An intuitive and easy way to represent relationships and entities in tables.

• They are patterns or guidelines that help in the construction of a database.

• Flowchart illustrating how relationships and entities interact in a database.

Example of a "One to One" business rule.

• One teacher can have many students and one student can have many teachers.

• One subject can be taught by only one teacher and one teacher can teach many subjects.

• A student can have a ID Card and a ID Card can belong to a student.

• A building can have many classrooms, but a classroom can only be in one building.

What is an attribute in the Entity Relationship Diagram?

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Example of "One to Many" Business Rule.

• One teacher can have many students and one student can have many teachers.

• A building can have many classrooms, but a classroom can only be in one building.

• A subject can be taught by only one teacher, but one teacher can teach many subjects.

• A teacher can only have one employee number because an employee number is only created for one teacher.

Can you recommend a song for me?