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Articles tagged with #2articles1week
what are window functions in SQL? Window functions, also known as windowing or analytical functions, are a powerful feature in SQL that allows you to perform calculations across a "window" of rows related to the current row. These functions can help ...
Introduction: In the world of data analytics, one fundamental concept that holds immense importance is granularity. Imagine yourself as a master chef preparing a delightful dish; the level of chopping or slicing you apply to your ingredients directly...
As an SQL developer, you may be well-versed in the power and versatility of JOINs, essential for combining data from multiple tables. While JOINs are indispensable tools, filtering joined data introduces a set of challenges and pitfalls that even sea...
SQL joins are a powerful way to combine data from multiple tables. However, what happens when you have null and duplicate data in one of the tables? In this blog post, we will explore how to use SQL joins with null data and duplicate data. What is Nu...
Prerequisites To follow along with this blog, you should have a basic understanding of SQL syntax and database concepts. The Scenario Let's imagine we have two tables named "Customers" and "Orders." The "Customers" table contains information about cu...
