Question

What is hashing ?Explain different types of hashing?

Answer 1

Answer:

HASHING TECHNIQUES:

Hashing provides very fast access to records on certain search conditions. This organization is usually called a hash file.

The search condition must be an equality condition on a single field, called the hash field of the file. The hash field is also called as hash key.

The idea behind hashing is to provide a function ‘h’ called a hash function (or) randomizing function, that is applied to the hash field value of a record and yields the address of the disk block in which the record is stored.

Hashing is also used as an internal search within a program whenever a group of records is accessed or exclusively by using the value of one field.

Answer 2

THE ABOVE ANSWER IS CORRECT