Hashing,Handling,Rehashing,Clustering

1. What is handling collision?
2. What is hashing function?
3. What is rehashing?
4. What is clustering?Is there any table to identify the hashing and collision and indexes?

Hashing is a technique to store and access records in the database. It is performed with the help of hashing algorithm that converts a primary key value into a record address.

Most hashing algorithms use the technique of dividing each primary key value by a suitable prime number and then using the remainder of the division as the relative storage location.


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