SELECT
product_id,
sale_date,
daily_sales,
AVG(daily_sales) OVER (
PARTITION BY product_id
ORDER BY sale_date
ROWS BETWEEN 2 PRECEDING AND CURRENT ROW
) AS rolling_avg_3_days
FROM sales_data;
SELECT
product_id,
sale_date,
daily_sales,
AVG(daily_sales) OVER (
PARTITION BY product_id
ORDER BY sale_date
ROWS BETWEEN 2 PRECEDING AND CURRENT ROW
) AS rolling_avg_3_days
FROM sales_data;
🤖 IA: It's not clickbait ✅
👥 Users: It's not clickbait ✅
#real_estate #housing_market #sales_data
View full AI summary:
🤖 IA: It's not clickbait ✅
👥 Users: It's not clickbait ✅
#real_estate #housing_market #sales_data
View full AI summary:
SQL interviews often test your ability to handle complex queries, optimize performance, and design scalable databases. Below are key questions and practical solutions to help you prepare. 1. Using Window Functions for Moving…
SQL interviews often test your ability to handle complex queries, optimize performance, and design scalable databases. Below are key questions and practical solutions to help you prepare. 1. Using Window Functions for Moving…