1. Introduction The MySQL AS keyword is used to assign aliases to tables and columns within a query. This feature not only improves the readability of SQL statements but also helps express complex que […]
1. What is a MySQL transaction? Definition and Necessity of Transactions A transaction refers to a processing unit that treats multiple database operations as a single unit. For example, consider a ba […]
1. What is MySQL EXPLAIN? Why you should use it What is EXPLAIN? A command that visualizes execution plans In MySQL, EXPLAIN (pronounced “explain”) is a command that visualizes how an SQL query is exe […]
1. Introduction Relational database management systems (RDBMS) are indispensable in modern web applications and business systems. RDBMS efficiently manages massive amounts of data and serves as the fo […]
1. Introduction When working with large-scale data or long-term data management in MySQL, choosing the right integer type is crucial. In particular, the “BIGINT type” draws attention when dealing with […]
1. Introduction When working with MySQL databases, you may encounter situations where you need to rename a table. For example, a table name might become inappropriate due to a project change, or syste […]
1. Introduction When using MySQL, checking the table definitions is extremely important. Accurately understanding the table definitions is essential for reviewing and revising database design, trouble […]
1. Introduction In MySQL version 8.0, many new features have been added, and among them, the support for window functions stands out. This article focuses on the frequently used ROW_NUMBER() function. […]
1. What are MySQL options? MySQL is a powerful database management system used by many websites and applications. Among its features, “option settings” are a crucial element for optimizing performance […]
1. Introduction Handling dates in MySQL is extremely important among database operations. For example, in scenarios where you aggregate sales data by date or search records from a specific past period […]
