How can I use SQL for data analytics?
You can use SQL to query databases, aggregate data, and perform complex analyses to gain insights.
What are some common SQL functions used in analytics?
Common SQL functions include COUNT, SUM, AVG, MIN, MAX, and various window functions for advanced analytics.
Can you give me an example of a SQL query for analyzing sales data?
Sure! A simple query could be: SELECT product_id, SUM(sales) FROM sales_data GROUP BY product_id;
This shows total sales per product.
How do I optimize my SQL queries for better performance?
You can optimize SQL queries by using indexes, avoiding SELECT *, and analyzing query execution plans.
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