QuerydrillCalculated column
An SQL exercise from Querydrill. Solve it with a SQL editor in your browser, checked on the rows it returns and again on changed data, and it is checked the moment you submit.
The task
Return each product's name and its price after a 10% discount.
What this exercise teaches
Calculated columns are common in reports; give them a clear name with AS in real work.
A hint if you get stuck
You can do arithmetic right in the SELECT list.
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