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Dates are compared like numbers

A date column holds a real point in time, so you compare it with < and >= just like a number, writing the date in quotes as year-month-day. To pick a whole month, ask for dates on or after the first of that month and before the first of the next.

A tiny example

In plain English: Show me the names of the students who joined during March 2019.

SELECT name
FROM students
WHERE joined >= '2019-03-01' AND joined < '2019-04-01';

What comes back

name
Priya
Tom

Priya and Tom are the only students who joined sometime in March 2019.

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