1. Introduction Overview of MySQL MySQL is the most widely used open-source relational database management system (RDBMS) worldwide. It is an essential component for web applications and enterprise sy […]
1. Introduction Why Changing MySQL’s Character Set Is Necessary The character set of a database is a crucial setting that determines how the characters of stored data are encoded and processed. In MyS […]
1. Introduction Are you struggling with MySQL performance degradation? When the database size grows, query execution slows down, potentially affecting the performance of the entire application. An eff […]
1. Introduction When operating a database, you may encounter situations such as “How many different countries are registered?” or “I want to know the number of unique email addresses […]
1. Introduction The BETWEEN operator used in MySQL to specify date ranges is a handy feature that lets you retrieve data within a specific period with a simple query. For example, it’s useful for fetc […]
What is MySQL AUTO_INCREMENT? Basics of AUTO_INCREMENT MySQL’s AUTO_INCREMENT is a feature that automatically increments numbers in database tables. It is commonly used as a primary key (PRIMARY […]
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 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 […]