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DAY function

The DAY function returns an integer data type.

DAY.png

The expression must return one of the following built-in data types:

  • DATE
  • TIMESTAMP
  • TIMESTAMP WITH TIMEZONE
  • Date duration
  • Timestamp duration

Important

A CHAR/VARCHAR argument is not accepted unless converted by a DATE, TIMESTAMP, or TIMESTAMP_TZ function.

A date duration occurs as the result of subtracting two dates; a timestamp duration occurs as the result of subtracting two timestamps with precision=6. The result is the day portion of the derived date, or date or timestamp, duration.

If the argument can be null, the result can be null; if the argument's value is null, the result is the null value.

Example
 DAY (DATE ('1991-12-31'))

results in an integer of value = 31

It is invalid to specify DAY (‘1991-12-31’) because the argument is of type CHAR.

Example
DAY (DATE ('1991-12-31')-DATE ('1995-12-31'))  

results in an integer of value = 0

Related topics

Functions-that-the-BMC-AMI-Utilities-SQL-language-supports

Features-that-the-BMC-AMI-Utilities-SQL-language-supports


 

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