Practical SQL queries are central to data analysis, including selecting films, finding special features, listing active customers, and more. Homework assignments reinforce learning through ...

If you work with databases, you probably use SQL joins to combine data from different tables and sources. SQL joins are essential for data analysis and reporting, as they allow you to create ...

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data analysis using different SQL functions like ROW_NUMBER, RANK, DENSE_RANK, SUBSTR, INSTR, COALESCE and NVL. It also involves the use of some built-in functions like concat, upper, lower, initcap, ...

How to use SQL to perform data analysis (House Property Sales Time Series) About the Dataset. The dataset for this analysis is “House Property Sales Time Series” from Kaggle. The schema is called ...

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SQL is neither the fastest nor the most elegant way to talk to databases, but it is the best way we have. Here’s why Today, Structured Query Language is the standard means of manipulating and ...