So you can generate 10 different versions of the same query, and they can all produce identical results. Each version is just a different execution strategy around the same logical question: “Given ...
For years, Microsoft Excel has been hailed as one of the best in the business for creating and managing spreadsheets. It has always been a staple choice in both office and academic environments for a ...
This project analyzes the Brazilian E-commerce Public Dataset by Olist using SQL, Python, and Power BI. The goal is to transform raw relational data into business insights focused on revenue, delivery ...
Sixty-six family members traveled to South Carolina from multiple states to celebrate the occasion during a beach vacation ...
SUM(CASE WHEN Email IS NULL OR TRIM(Email) IN ('','NULL','N/A') THEN 1 ELSE 0 END) AS blank_email, SUM(CASE WHEN Age IS NULL OR TRIM(Age) IN ('','NULL','N/A') THEN 1 ELSE 0 END) AS blank_age, SUM(CASE ...
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