What is a hashing algorithm, and how is it used in hashed file ...

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What is a hashing algorithm, and how is it used in hashed file organizations?
 
  What will be an ideal response?

Question 2

EXISTS takes a value of false if the subquery returns an intermediate result set.
 
  Indicate whether the statement is true or false

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Answer to Question 1

A hashing algorithm is a routine which converts a primary key value into a record address. Hashing algorithms are typically mathematical routines which perform computations such as dividing a primary key by a prime number and then using the remainder for a storage location. The hashing algorithm is used in a file organization to determine where to store the record. One limitation of this is that only one key value can be used for an index.

Answer to Question 2

FALSE