62. Cumulative Sum

This advanced SQL exercise is part of the book: Advanced SQL – Practical Techniques and Use-Cases, which includes 100 day-to-day SQL challenges (and solutions), need-to-know advanced features, and key concepts.

A computer store manages a table that contains information on various products. Each row specifies the product number, name, and price.

CREATE TABLE LaptopAccessories
(productID int identity(1,1),
productName varchar(250),
unitPrice int)

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