What does concurrency mean for database?

Why do databases use concurrency?

The concurrency control mechanism is used to ensure database isolation. Due to the high isolation requirements on the execution sequence of transactions, many databases offer different options. These operations represent different trade-offs between performance and isolation.

What do you mean by concurrency?

In computer science, concurrency is the ability of different parts or units of a program, algorithm, or problem to be executed out-of-order or in partial order, without affecting the final outcome.

What is a concurrency in SQL?

Concurrency in SQL Server Concurrency is a situation that arises in a database due to the transaction process. Concurrency occurs when two or more than two users are trying to access the same data or information.

What is concurrency in DBMS with example?

If many transactions try to access the same data, then inconsistency arises. Concurrency control required to maintain consistency data. For example, if we take ATM machines and do not use concurrency, multiple persons cannot draw money at a time in different places. This is where we need concurrency.