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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...
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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...
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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 ...
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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...
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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. ...
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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-...
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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 ...
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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...
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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 ...
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Computer Subject
DBMS
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...
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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...
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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 ...
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DBMS
Difference Between
GATE CS
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...
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DBMS
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...
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DBMS
GATE CS
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...
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DBMS-Transactions and Concurrency Control
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