When data size increases you will realize your database queries responds slowly. Lets talk how databases handles such situations using B-Trees.

Each data access call needs to read/write to Disk Drive.

Hard Disk Drive has circular disks divided in Tracks & Sectors. An area marked between a Track & a…

StackOverflow.com is a widely used question and answer website for professional and enthusiast programmers. It is the flagship site of the Stack Exchange Network. The scale of this site can be understood by looking at its user base stats

With a hopping user base of 15million , Stack Overflow tops…


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