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Explain the following code. What language? What does it do? What is the result? SELECT date_trunc('month',date),avg(value) FROM rain GROUP...

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Question

Electrical Engineering

Explain the following code. What language? What does it do? Whatis the result?

SELECT date_trunc('month',date),avg(value)

FROM rain

GROUP BY date_trunc ('month',date)

ORDER BY date_trunc('month',date);

Answer & Explanation Solved by verified expert
4.4 Ratings (765 Votes)
It is PostgreSQL The code can be explained as PostgreSQL Date functions The DATETRUNC function rounds a timestamp value to a specified interval which allows you to count events Here you can round off a timestamp The DATETRUNC syntax looks like this DATETRUNCintervaltimestamp    See Answer
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