Concurrency Control in DBMS

Concurrency control in DBMS is a concept that ensures the simultaneous execution or manipulation of data by several processes or users without resulting in data inconsistency.

A transaction in DBMS is a set of logically related operations.

The main operations of a transaction are Read(A), Write(A), and W(A).

<p>The Read(A) operation reads the value of A from the database and stores it in a buffer in the main memory.</p> Signup and view all the answers

<p>The Write(A) operation writes the value back to the database from the buffer.</p> Signup and view all the answers

<p>Concurrency control in DBMS ensures the simultaneous execution or manipulation of data by several processes or users without resulting in data inconsistency.</p> Signup and view all the answers

<p>A transaction is a set of logically related operations that are executed as a single unit. It ensures the atomicity, consistency, isolation, and durability (ACID) properties of data.</p> Signup and view all the answers

<p>The main operations of a transaction are Read(A), Write(A), and other logically related operations.</p> Signup and view all the answers

<p>The Read(A) operation reads the value of A from the database and stores it in a buffer in the main memory.</p> Signup and view all the answers

<p>The Write(A) operation writes the value back to the database from the buffer.</p> Signup and view all the answers