Understanding Clustered And Non-Clustered Indexes In Simple Terms
Clustered indexes organize data physically in a table based on a specific attribute, like ISBN. Non-clustered indexes provide an additional way to find data using a separate index, like a card catalog.
Real-time examples of clustered and non-clustered indexes, explained in simple language: Clustered Index Example Scenario: Imagine a library that organizes books by their ISBN (International Standard Book Number). Physical Arrangement: All the books are placed on the shelves in numerical order based on their ISBN. This means that if you look for a book with a specific ISBN, you can go straight to that section of the shelf without checking every book. Querying: If someone wants to find a book with a specific ISBN or a range of ISBNs, the librarian can quickly access the shelf where the books ar...