I would add that adding prices has no practical sense.
You get given the time in hours...
Agreed
It's already implied.
Add up the letters (case-insensitive)
This comment is hidden because it contains spoiler information about the solution
OMG! I spent a couple of hours solving this problem. Missed the mathematical connection. Excellent solution man!
Use spoiler flag next time, please
That's why he uses COUNT(s) instead of SUM(s)
done
There is no advantage and this is not at all best practice, it just makes the query less readable.
The sql optimizer is so good that in 99.99999999999% of cases you never have to think about optimization, only readability.
corrected
What are some good ways to start learning python regular expressions.
x2
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I would add that adding prices has no practical sense.
You get given the time in hours...Agreed
It's already implied.
This comment is hidden because it contains spoiler information about the solution
OMG! I spent a couple of hours solving this problem. Missed the mathematical connection. Excellent solution man!
Use spoiler flag next time, please
This comment is hidden because it contains spoiler information about the solution
That's why he uses COUNT(s) instead of SUM(s)
done
There is no advantage and this is not at all best practice, it just makes the query less readable.
The sql optimizer is so good that in 99.99999999999% of cases you never have to think about optimization, only readability.
corrected
What are some good ways to start learning python regular expressions.
x2
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