Frequently Asked Questions on Static Hashing
What is hash collision?
A hash collision occurs when the hash values of two or more files in the dataset are not assigned to the same location in the hash table.
What to do with hash conflicts?
There are two methods that can be used to avoid hash collisions which includes rehashing in which calls the association hash function, which is used repeatedly until space appears. Second method is the chaining method creates a linked list of objects whose keys have the same value. This method should have an extension for each address.
What is the time complexity of static hashing?
The Modulo Hash Function calculates the hash of key data and performs a modulo N operation to find the array index (node identifier) to store or retrieve a key. The time complexity of finding an identity in the static hash part is constant O(1).
Static Hashing in DBMS
Static hashing refers to a hashing technique that allows the user to search over a pre-processed dictionary (all elements present in the dictionary are final and unmodified). In this article, we will take an in-depth look at static hashing in a DBMS.