Question: Using LAG() and LEAD()
Learn to use LAG() and LEAD() window functions in SQL.
We'll cover the following...
Question
We have a database for a company that manages information about its employees, the product categories they handle, the products within those categories, and the sales made. The Employees
table stores unique identifiers (EID
), employee names, and ages. The ProductCategories
table contains unique identifiers (CategoryID
) for each category and assigns one ...
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