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Top 50+ SQL Interview Questions and Answers for Beginners and Experienced Professionals

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Introduction Did you know that SQL (Structured Query Language) was developed in the 1970s at IBM by a team led by Donald D. Chamberlin and Raymond F. Boyce? Originally known as SEQUEL (Structured English Query Language), SQL was created to manage the vast amounts of data generated by business operations and financial transactions. Today, SQL …

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Complete Guide to SQL Window Functions – Big Tech Interviews

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The Complete Guide to SQL Window Functions – Big Tech Interviews SQL window functions are a powerful tool that can be used to solve complex problems with ease by data analysts, data scientists, and even software engineers. This article will discuss the different types of window functions and how to use them effectively. We will …

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Top Amazon Business Intelligence Engineer Interview Questions (2023 Update)

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How do you prepare for your Business Intelligence Engineer (BIE) interview at Amazon/AWS? It starts with getting a lay of the land and understanding Amazon/AWS and the types of BIE roles they’re actively hiring for. Amazon is the second largest employer in the United States with over 1.6M employees working in a wide range of …

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