Microsoft SQL Server Development for Everyone - Creating a Relationship in SQL Server

The video tutorial explains the process of designing a school management database by focusing on atomic tables, which are independent and can exist on their own. It covers the creation of tables for teachers, students, and courses, emphasizing the importance of primary and foreign keys in establishing relationships. The tutorial also introduces the concept of an enrollment table to manage complex relationships between teachers, students, and courses, ensuring data integrity through constraints and keys.

What is meant by an atomic table in database design?

• A table that contains only primary keys.

• A table that can exist independently without dependencies.

• A table that is linked to multiple other tables.

• A table that requires multiple foreign keys.

Why can a student exist without being associated with a course in the database?

• Because students are always associated with a teacher.

• Because students are automatically enrolled in all courses.

• Because students are not required to pay fees.

• Because students can be on campus without enrolling in a course.

What is a potential issue when associating a teacher with a course directly in the teacher table?

• It limits a teacher to teaching only one course.

• It makes the teacher table dependent on the student table.

• It allows a teacher to teach unlimited courses.

• It requires a teacher to have multiple IDs.

Why is an enrollment table necessary in a school management database?

• To keep track of teacher salaries.

• To manage the three-part relationship between teachers, students, and courses.

• To list all available courses.

• To store the grades of students.

What is the role of foreign keys in the enrollment table?

• To ensure that only valid data is entered into the table.

• To allow duplicate entries in the table.

• To make the table independent of other tables.

• To store additional information about courses.

How does establishing foreign key relationships contribute to database integrity?

• By allowing any value to be entered in the foreign key column.

• By removing the need for primary keys.

• By ensuring that foreign key values match primary key values in related tables.

• By making the database design more complex.

What is a key consideration when naming columns in a database?

• Using random names for uniqueness.

• Using the same name for all columns.

• Avoiding the use of primary keys.

• Ensuring names are descriptive and indicate relationships.

What is the purpose of adding a grade column to the enrollment table?

• To store the enrollment date of a student.

• To track the number of courses a student is enrolled in.

• To record the grade a student receives in a specific course.

• To list all teachers associated with a course.

Why is it important to understand core concepts and dependencies in database design?

• To apply the same design techniques to all databases.

• To avoid using foreign keys in the database.

• To ensure that all tables are dependent on each other.

• To create a flexible and efficient database structure.

What is the significance of the enrollment table having dependencies on other tables?

• It allows the enrollment table to function independently.

• It makes the enrollment table the primary table in the database.

• It reduces the need for foreign keys.

• It ensures that enrollments are valid and linked to existing records.