What is concurrency control? What is the need of applying concurrency

Question

What is concurrency control? What is the need of applying concurrency control methods in database? Give an example. Write the algorithm of timestamp based ordering protocol and explain through an example. What are the problems with this algorithm and what are the proposed solutions for it?

11 Sep 2020

Answer :

Word Count : 441

Concurrency control is a fundamental concept in Advanced Database Management Systems (DBMS). It refers to the management of multiple concurrent transactions that access and modify the same database simultaneously while ensuring the database's integrity and consistency. The primary goal of concurrency control methods is to allow multiple users to access the database concurrently without leading to data inconsistencies or conflicts.

The need for applying concurrency control methods in a database arises from the following reasons:

1. Data Consistency: In a multi-user database system, simultaneous transactions may attempt to ________ ____ ________ ________ _______.
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