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Technical Articles

Database

How can you use user-defined functions (UDFs) to extend MySQL's functionality?

Article discusses using user-defined functions (UDFs) in MySQL to extend functionality, including custom calculations, external library integration, and performance optimization.

Mar 31, 2025 am 11:00 AM

What are events in MySQL? How can you use them to schedule tasks?

MySQL events automate tasks like data maintenance and backups within the database, offering benefits in efficiency and consistency.

Mar 31, 2025 am 10:59 AM

How can you use triggers to automate database tasks?

Article discusses using triggers to automate database tasks like data validation, auditing, and maintaining integrity, enhancing efficiency and reliability.

Mar 31, 2025 am 10:58 AM

Explain the use of spatial data types in MySQL.

The article discusses MySQL's spatial data types for managing geometric data in GIS, detailing types like POINT, LINESTRING, and POLYGON, and their benefits for spatial queries and performance.

Mar 31, 2025 am 10:56 AM

What are generated columns in MySQL?

The article discusses generated columns in MySQL, introduced in version 5.7.8, which are calculated from expressions using other columns. It explains virtual and stored types, their performance benefits, and practical use cases like age calculation a

Mar 31, 2025 am 10:55 AM

How can you use JSON data in MySQL?

The article discusses using JSON data in MySQL, covering creation, insertion, updating, and querying methods. It highlights benefits like flexibility and ease of integration, but notes limitations such as performance overhead and lack of full ACID co

Mar 31, 2025 am 10:54 AM

Explain the use of common table expressions (CTEs) in MySQL.

The article discusses the use of Common Table Expressions (CTEs) in MySQL, focusing on their application in simplifying complex queries, reusing subqueries, and handling recursive queries. It highlights performance benefits and improved readability t

Mar 31, 2025 am 10:53 AM

What are window functions in MySQL 8.0? How can they be used to perform complex calculations?

MySQL 8.0's window functions enable complex calculations across related rows, enhancing query performance and data analysis capabilities.

Mar 31, 2025 am 10:52 AM

Explain the different types of relationships between tables (e.g., one-to-one, one-to-many, many-to-many).

The article discusses three types of table relationships in databases: one-to-one, one-to-many, and many-to-many, detailing their implementation and advantages.

Mar 31, 2025 am 10:51 AM

How do you design a database schema for a specific application?

The article discusses designing a database schema for applications, focusing on steps like requirements gathering, conceptual and logical design, normalization, and optimization. Key considerations include data integrity, scalability, performance, an

Mar 31, 2025 am 10:50 AM

What are foreign keys? How do they enforce referential integrity?

Foreign keys link tables in relational databases, enforcing referential integrity by ensuring consistent relationships. They improve data organization but misuse can cause data inconsistency and performance issues. Foreign keys may be omitted in NoSQ

Mar 31, 2025 am 10:49 AM

How do you choose a primary key for your tables?

The article discusses selecting primary keys in database design, focusing on ensuring uniqueness, stability, and performance. It outlines best practices, performance impacts, and common mistakes to avoid.

Mar 31, 2025 am 10:48 AM

How do you design indexes to optimize query performance?

The article discusses strategies for designing indexes to optimize database query performance, including understanding query patterns, choosing appropriate index types, and balancing index usage.

Mar 31, 2025 am 10:47 AM

How do you choose appropriate data types for your columns?

Article discusses choosing appropriate data types for database columns to optimize performance, storage, and functionality. Main issue is the importance of correct data type selection for efficient database design.

Mar 31, 2025 am 10:46 AM