- Aggregate data with
SUM()
,MAX()
,MIN()
- Filter rows using
WHERE
,GROUP BY
- Use subquery in
WHERE
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- Count unique values with
COUNT(DISTINCT)
- Combine
SUM()
andCOUNT()
to calculate in each row
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- Use
HAVING
to filter on results ofGROUP BY
JOIN
andLEFT JOIN
tables
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- Use
CASE
to add a new column based on some conditions - Use window functions such as
DENSE_RANK()
,SUM()
- Simplify the code with
CTE
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CAST
numeric data- Calculate the correlation and median
- Work with dates, times, and strings
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View my project here!
View my project here!