SQL Challenge: Gradebook 1st question

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djvelas8912

February 10, 2022 00:50

I've been stuck on the first task for the Gradebook challenge for about 2 hours trying to figure out how to turn a decimal into a percent. The prompt is telling me to multiply by 100 and then ROUND, however this wasn't taught (only rounding) so I cant multiply the column and continue on the course. The hint only tells me the beginning but doesn't help me seek help for anything else after.

I have the feeling that the answer is right in front of me but I cannot see it or think of it. It's really frustrating.

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AD Baker

February 10, 2022 04:18
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In the video that precedes the Gradebook Challenge, Pamela uses multiplication, subtraction, and the ROUND function to calculate target heart rates.
djvelas8912

February 10, 2022 17:59
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she uses it to find greater than or less than but not multiplying the figures in one column by 100 or any other number. Thanks but no thanks I guess
Evan Lewis

February 10, 2022 18:07
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The previous video shows that you can use arithmetic operations within the ROUND() function, but it doesn't specify that you can use column names within it as well, so I can understand where your confusion is coming from!

To get the percent_completed in the challenge, you need to take the fraction_completed and multiply it by 100 (to get the percent value), and then round it. You can do this as follows:
```
ROUND(fraction_completed * 100)
```
Does that make sense?

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SQL Challenge: Gradebook 1st question

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