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The DAYOFYEAR Function Syntax for the DAYOFYEAR function: date-or-timestamp is a date or timestamp value expression. Rules: The result is an integer value, 1 through 366, where 1 = January 1st. The value for a day after February 28th depends on whether the year is a leap year or not. If the value of date-or-timestamp is NULL, then the result of the function is NULL.
Syntax for the DAYOFYEAR function:
date-or-timestamp is a date or timestamp value expression.
