Which of the following establishes a top-to-bottom relationship among the items?a.Relational schemab.Hierarchical schemac.All of the mentionedd.Object-oriented schema
Question
Which of the following establishes a top-to-bottom relationship among the items?a.Relational schemab.Hierarchical schemac.All of the mentionedd.Object-oriented schema
Solution
The answer is b. Hierarchical schema.
A hierarchical schema establishes a top-to-bottom relationship among the items. This type of schema represents data as a tree-like structure, where each record has a single parent or root. Sibling records are sorted in a particular order. This makes it easy to add and delete records in a hierarchical database.
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