Window functions are where analytics gets powerful without messy joins. Lead and lag are two of the most practical tools: they let you “peek” into the next or previous row to compare, detect changes, ...
-- Question 1: Show a list of all upcoming events a user is registered for in their city, sorted by date. -- Question 2:Identify events with the highest average rating, considering only those that ...
CURRENT_DATE (or CURDATE() in MySQL) retrieves the current date without time. This is useful when you need the current day’s date for comparisons, logging, or any date-related operations.
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