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SQL Tips Calculate Monthly Sales #sqltips #sql #sqlinterview #interview #interviewquery
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Explanation:
DATE_TRUNC('month', sale_date): This function truncates the sale date to the first day of the month.
SUM(quantity * price): This calculates the total sales for each month.
The GROUP BY clause groups the results by month, and the ORDER BY clause orders the results chronologically.
DATE_TRUNC('month', sale_date): This function truncates the sale date to the first day of the month.
SUM(quantity * price): This calculates the total sales for each month.
The GROUP BY clause groups the results by month, and the ORDER BY clause orders the results chronologically.
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