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Today we will look into aggregate functions to get a better understanding of how to obtain some data from integer columns. This is a topic you must...
How to understand better the execution of your everyday code. ยท Have you ever wondered how SQL executes the queries that you write? In fact, a particular...
The RANK, DENSE_RANK and ROW_NUMBER functions are used to return an increasing integer number. All of these three functions require the ORDER BY...