1. Introduction MySQL is widely used as a database management system, but when multiple queries attempt to access the same data, a locking mechanism is triggered. Locks are essential for maintaining d […]
1. Introduction When managing a database, you may encounter situations such as, “How many different countries have been registered?” or “How many unique email addresses are there?”In such cases, you c […]
1. The shortest SQL to get the current date/time in MySQL If you want to get the current date/time in MySQL, the first functions to remember are NOW() and CURRENT_TIMESTAMP. Below are the shortest SQL […]
1. Introduction When working with databases, handling NULL values is a critical point.In particular, it’s not uncommon for people who are used to Oracle’s NVL function to realize that NVL is not avail […]
1. Introduction MySQL is a widely used open-source relational database among database management systems (DBMS). It is especially popular for web applications and enterprise systems. In this article, […]
1. Introduction When Do You Need to Handle the Current Time in MySQL? In MySQL, retrieving the current time is required in many different scenarios. For example, the following use cases are common: As […]
1. Introduction Getting the current time in MySQL is a crucial part of database management.For example, you may need to retrieve the current time in situations like the following: As you can see, prop […]
1. Introduction What Is a MySQL Restore? A MySQL restore is the process of recovering backed-up data into the original database.By performing a restore, you can recover data after data loss or system […]
1. Introduction Why You May Need to Change the MySQL Character Set A database character set is an important setting that determines how text data is encoded and processed for storage. In MySQL, the de […]
1. Introduction Using Regular Expressions in MySQL MySQL is a powerful database management system for searching and manipulating data, and it also supports regular expressions (REGEXP) to enable more […]