Multiple choice

Which of the following schemas has been established from top to bottom relationship among items in a database?

  1. Hierarchy schema

  2. Network schema

  3. Relational schema

  4. All of the above
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Top to bottom approach is used in hierarchial schema because it basically is based on Parent and Child Relationship. The parent and child relationship type has basically 1 : N relationship.

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