The SQL language provides a lot of effective operators for retrieving and presenting data from databases. One popular tool is the UNION clause. In this article, we will delve into what the UNION clause is, its benefits, and how to use it effectively in MySQL.
In our routine database management tasks, it's often necessary to learn the size of the database and count the objects within all SQL Server tables. Fortunately, we have established methods and tools to swiftly provide this information. In this article, we will explore these methods and tools.
In this article, our focus is to explore the practical applications, advanced techniques, and hands-on examples that will equip you with the necessary skills to leverage the full potential of the AVG() function. Additionally, we will delve into its arguments: ALL and DISTINCT.
Open transactions in SQL Server occur frequently and demand close attention and proper handling to prevent issues. Monitoring open transactions and ensuring their timely completion (either committing or rolling back) is a best practice, and this article will explore tools and methods and provide a guide on automatically finding and resolving open transactions.
One of the best methods to analyze query performance is to explore its execution plan. In this article, we are going to discuss the basics of the Query Execution Plan feature and its importance in SQL performance optimization with the help of a convenient IDE - dbForge Studio for SQL Server.
A key is typically defined as a column or a group of columns that are used to uniquely locate table records in relational databases (including MySQL, of course). And now that we've covered MySQL primary keys on our blog, it's time to give you a similarly handy guide on foreign keys.
In the world of web development, PHP stands as one of the most popular scripting languages that empowers developers to create dynamic and interactive web applications with ease. Central to the functionality of many PHP projects is the management of data, which often necessitates the integration of powerful database solutions.
Today, accessing and managing databases remotely is a fundamental skill for developers, system administrators, and anyone working with data-driven applications. In this article, we will demonstrate how to establish an SSH connection to a MySQL database on a DigitalOcean Droplet—a virtual private server that can host various applications and databases.
Duplicates pose an ongoing risk to the data consistency and the overall database efficiency. This article will explore the issue of duplicate records, including their origins, the effects they have on databases, and strategies for swiftly detecting and permanently removing duplicates.