21 Jul 2020 Zahin Rahman Using GROUP BY in SQL Now that you know SQL’s core commands, power up your queries with the GROUP BY clause and aggregate functions. GROUP BY is a SQL clause that arranges data into groups based on a common value (or values). It is widely used to obtain summary information for large datasets as well as for computing basic aggregate statistics. Once you have grasped SQL’s basic commands like SELECT, WHERE, and JOIN, mastering the GROUP BY clause can help you implement your SQL knowledge in real-world business intelligence scenarios. Read more 2 Jun 2020 Zahin Rahman How to Learn SQL JOINs JOINs are one of the most fundamental and commonly used SQL commands for manipulating and querying real-world data sets. They are also one of the more challenging SQL topics to master! In this article, you’ll learn an effective strategy to learn the different types of SQL JOINs. When data is stored in a single table, we can easily retrieve rows and get all the information we need. But when businesses scale, so does their data. Read more 10 Apr 2020 Zahin Rahman What is the Best SQL Training Online? Updated on: April 16, 2024 Mastering SQL training is crucial, but let's face it—you won’t become an expert in just a couple of weeks. With countless resources available, it can be quite a challenge to even know where to begin your SQL journey. How do you effectively practice and hone these essential skills? Savvy and knowledgeable database professionals have consistently been in high demand over the last five years. If you are aiming to advance your career as a database developer, administrator, warehousing specialist, or analyst, SQL training and mastery is an absolute necessity. Read more «« « 1 2 » »»