How can I create an SQL query that pulls data for a particular number of weeks?

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Assuming you have a date column in your table, you can use the DATEADD function to subtract a specific number of weeks from the current date. Here's an example query that pulls data from the last 4 weeks:

SELECT *
FROM your_table
WHERE date_column >= DATEADD(week, -4, GETDATE())

This query uses the GETDATE() function to get the current date and the DATEADD function to subtract 4 weeks from that date. The WHERE clause then filters the data to only include rows where the date_column is greater than or equal to that calculated date. You can adjust the number of weeks as needed for your specific query.