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DBMS-Transactions and Concurrency Control

29 posts

Transactions, Concurrency & Recovery Interview Questions - DBMS

Last Updated: 14 April 2026

Transactions ensure reliable and atomic operations in a database, even with multiple users accessing data concurrently. Concurrency control techniques prevent conflicts an...read more

DBMS-Transactions and Concurrency Control

Serializability in DBMS

Last Updated: 23 December 2025

In DBMS, serializability ensures the database remains correct even when multiple transactions run at the same time. It makes transactions behave as if they were executed o...read more

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DBMS-Transactions and Concurrency Control

Transaction Control in DBMS

Last Updated: 23 July 2025

The transaction is a single logical unit that accesses and modifies the contents of the database. Transactions access data using read and write operations. Transaction is ...read more

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DBMS-Transactions and Concurrency Control

Central Authentication Service

Last Updated: 30 March 2022

Central Authentication Service is a single sign-on protocol that is developed to permit a user to have access to multiple applications using the same underlying authentica...read more

DBMS-Transactions and Concurrency Control

Multiversion Timestamp Ordering

Last Updated: 19 March 2022

In the Multiversion timestamp ordering technique, for each transaction in the system, a unique timestamp is assigned before the start of the execution of the transaction. ...read more

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DBMS-Transactions and Concurrency Control

What is Snapshot Isolation?

Last Updated: 23 July 2025

The isolation levels in DBMS are used to maintain concurrent execution of transactions without facing interruption through problems like dirty read, phantom read, and non-...read more

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Computer Subject

DBMS-Transactions and Concurrency Control

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Types of Locks in Concurrency Control

Last Updated: 23 July 2025

Commercial demands for ensuring smooth functionality and highly efficient run-time servers, make it highly prime for Database Designers to work out systems and code which ...read more

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DBMS-Transactions and Concurrency Control

Equivalent Serial Schedule of Conflict Serializable Schedule in DBMS

Last Updated: 23 July 2025

Prerequisite: Conflict Serializability, Precedence GraphConflict Serializable Schedule: A schedule is called conflict serializable if it can be transformed into a serial s...read more

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Topological Sorting

DBMS-Transactions and Concurrency Control

Recovery With Concurrent Transactions

Last Updated: 15 July 2025

Concurrency control means that multiple transactions can be executed at the same time and then the interleaved logs occur. But there may be changes in transaction results ...read more

Computer Subject

DBMS-Transactions and Concurrency Control

Introduction of Shadow Paging

Last Updated: 05 December 2025

Shadow paging is a recovery technique used in DBMS to ensure that transactions are atomic (all-or-nothing) and durable (changes survive failures). Instead of keeping detai...read more

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DBMS-Transactions and Concurrency Control

Transaction States in DBMS

Last Updated: 06 August 2025

Transaction states represent the different phases a transaction goes through during its lifecycle in a database system. These states help track the progress and outcome of...read more

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DBMS-Transactions and Concurrency Control

Main difference between Timestamp protocol and Thomas write rule in DBMS

Last Updated: 12 July 2025

In database systems, the issue of maintaining consistency while executing transactional processes concurrently is very important. Two concurrency control methods that can ...read more

Difference Between

DBMS-Transactions and Concurrency Control

Algorithm for Recovery and Isolation Exploiting Semantics (ARIES)

Last Updated: 13 August 2025

ARIES is a robust recovery algorithm based on the Write-Ahead Logging (WAL) protocol, widely used in modern DBMS to ensure durability and consistency after system failures...read more

DBMS-Transactions and Concurrency Control

Concurrency Control Techniques

Last Updated: 25 August 2025

Concurrency control is a fundamental concept in database systems that ensures correct execution of simultaneous transactions without violating data integrity. Below are so...read more

DBMS-Transactions and Concurrency Control

Concurrency problems in DBMS Transactions

Last Updated: 12 July 2025

Concurrency control is an essential aspect of database management systems (DBMS) that ensures transactions can execute concurrently without interfering with each other. Ho...read more

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DBMS-Transactions and Concurrency Control

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