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SQL Superpowers: Why Window Functions Are the Best Tool You’re Not Using Enough
If you’re a data engineer, analyst, or backend developer, you’ve likely encountered scenarios where aggregate functions like SUM(), AVG(), or COUNT() just aren’t enough. Enter Window Functions – arguably one of SQL’s most powerful and elegant features. Despite being a game-changer, window functions are often underused and misunderstood. In this blog, we’ll break down what…
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Turbocharge Your SQL: PostgreSQL Query Tuning Made Easy (and a Little Fun!)
Efficient query performance is the backbone of any database-driven application. As data volume grows and queries become more complex, poorly optimized SQL can lead to significant performance bottlenecks, slowing down applications, increasing hardware costs, and causing user dissatisfaction. Query tuning ensures that your database delivers results quickly and efficiently, maintaining the performance and scalability of…
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Slowly Changing Dimensions (SCDs): What Are They and Why Do They Matter?
Image by Pete Linforth from Pixabay Imagine you’re keeping a diary about your favourite ice cream shop. One day, they introduce a new flavour. The next week, they rename the “Choco Fudge” to “Double Chocolate Delight.” Later, they move to a bigger location. How do you keep track of all these changes in your diary?…
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Database Partitioning and Sharding: A Data Engineer’s Perspective
As a data engineer, one of the most common challenges I’ve faced is managing the growing volumes of data that modern applications generate. When a single database struggles to handle all that data, performance suffers, queries slow down, and scaling becomes a nightmare. That’s when techniques like partitioning and sharding come to the rescue. Image…
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Unwrapping 2024 in Music: The Magic of Spotify Wrapped
It’s that time of year again – when our playlists become time capsules, our favorite tracks tell tales of the past 12 months, and Spotify Wrapped delivers the soundtrack to us. With Wrapped 2024 here, let’s take a peek behind the curtain to uncover the magic of animations that bring our musical journey to life.…
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Apache Kafka: The Storyteller of the Digital World
Imagine a bustling playground. Some kids are chatting about the latest game they played, others are showing off their toys, and a few are just listening quietly, soaking it all in. Now, picture a magical friend in this playground who listens to every conversation, remembers everything, and can retell those stories to anyone, anytime. That’s…