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Technical Articles

Database

Explain the different database normalization forms (1NF, 2NF, 3NF, BCNF).

Article discusses database normalization forms (1NF, 2NF, 3NF, BCNF) to reduce redundancy and improve data integrity. Main issue: balancing normalization benefits with performance impacts.

Mar 27, 2025 pm 06:11 PM

What is deadlock? How can you detect and prevent deadlocks in MySQL?

The article discusses deadlocks in MySQL, detailing their detection, prevention, causes, and resolution. Main issues include lock contention and long-running transactions. Strategies to minimize deadlocks involve consistent lock ordering and short tr

Mar 27, 2025 pm 06:10 PM

How does InnoDB handle locking?

InnoDB uses row-level locking, shared/exclusive locks, and intention locks to manage concurrent data access, enhancing performance and consistency in MySQL databases.

Mar 27, 2025 pm 06:09 PM

Explain the different types of locks in MySQL (e.g., shared locks, exclusive locks, row-level locks, table-level locks).

The article discusses MySQL lock types: shared, exclusive, row-level, and table-level locks. It explains how shared locks enhance concurrent transaction performance, while exclusive locks may reduce concurrency and cause issues like deadlocks. Row-le

Mar 27, 2025 pm 06:08 PM

How do transaction isolation levels prevent these concurrency issues?

Article discusses transaction isolation levels in databases, focusing on preventing concurrency issues like dirty reads, non-repeatable reads, and phantom reads. It explains different isolation levels and their impact on concurrency and performance,

Mar 27, 2025 pm 06:05 PM

Explain the concepts of read committed, repeatable read, and serializable isolation levels.

Article discusses read committed, repeatable read, and serializable isolation levels in databases, focusing on their impact on concurrency and data consistency.

Mar 27, 2025 pm 06:03 PM

What are the different transaction isolation levels in MySQL? How do they affect concurrency?

The article discusses MySQL's four transaction isolation levels: READ UNCOMMITTED, READ COMMITTED, REPEATABLE READ, and SERIALIZABLE, and their impact on concurrency and performance. It provides guidance on configuring and optimizing these levels for

Mar 27, 2025 pm 06:02 PM

Explain the ACID properties of database transactions (Atomicity, Consistency, Isolation, Durability).

The article discusses the ACID properties (Atomicity, Consistency, Isolation, Durability) essential for reliable database transactions, ensuring data integrity and consistency.

Mar 27, 2025 pm 06:01 PM

What are some disaster recovery strategies for MySQL?

The article discusses disaster recovery strategies for MySQL, focusing on regular backups, replication, point-in-time recovery, geographic redundancy, automated failover, testing, and data archiving to ensure data integrity and availability.

Mar 27, 2025 pm 06:00 PM

How can you use compression to reduce the size of your backups?

The article discusses using compression to reduce backup file sizes, detailing tools, algorithms, and impacts on backup and restoration times, as well as potential effects on data integrity and recoverability.

Mar 27, 2025 pm 05:58 PM

What are the challenges of backing up and restoring large databases?

The article discusses challenges in backing up and restoring large databases, focusing on data volume, performance, and integrity. It suggests strategies like transactional consistency and parallel processing to ensure data integrity and minimize dow

Mar 27, 2025 pm 05:57 PM

How do you use point-in-time recovery (PITR) to restore a database to a specific point in time?

Article discusses point-in-time recovery (PITR) for databases, detailing steps for restoration, implementation, and best practices to minimize data loss during failures.

Mar 27, 2025 pm 05:55 PM

How do you handle backups and restores in a replicated environment?

The article discusses strategies for managing backups and restores in replicated environments, focusing on maintaining data integrity and minimizing downtime. Key issues include ensuring data consistency during backups and efficient restore processes

Mar 27, 2025 pm 05:53 PM

What are the best practices for backup retention?

Article discusses best practices for backup retention, frequency, duration, and integrity verification to ensure effective data recovery and compliance.

Mar 27, 2025 pm 05:52 PM