The YEAR function returns the year part of a value. The argument must be a date, timestamp, or a valid character string representation of a date or timestamp. The result of the function is a large integer. If the argument can be null, the result can be null; if the argument is null, the result is the null value.
The other rules depend on the data type of the argument specified:
- If the argument is a date, timestamp, or valid string representation of a date or timestamp: The result is the year part of the value, which is an integer between 1 and 9 999.
- If the argument is a date duration or timestamp duration: The result is the year part of the value, which is an integer between -9 999 and 9 999. A nonzero result has the same sign as the argument.
YEAR ( expression )
Select all the projects in the PROJECT table that are scheduled to start (PRSTDATE) and end (PRENDATE) in the same calendar year.
SELECT * FROM PROJECT WHERE YEAR(PRSTDATE) = YEAR(PRENDATE)
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