How is the datepart function used in SQL?

In SQL, the DATEPART function is used to extract specific parts of a date (such as year, month, day, hour, etc.).

The basic syntax of it is:

DATEPART(datepart, date)

In this case, datepart represents the date portion to be extracted, which can be one of the following commonly used parameters:

1. year: the specific year in question.
2. month: calendar month
3. day: sky
4. hour: a unit of time, equal to 60 minutes
5. minute: a unit of time equal to 60 seconds
6. second: unit of time equal to 1/60th of a minute

The date expression indicates a desire to extract the date portion from it.

For example, to extract the year from a specific date, you can use the following SQL statement:

SELECT DATEPART(year, '2022-01-01') AS Year;

The statement will yield 2022.

 

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