NumToYMInterval
From Oracle FAQ
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NumToYMInterval is a SQL function, available form Oracle 8i, that is used to convert a NUMBER to a INTERVAL YEAR TO MONTH literal.
Syntax
The syntax for the numtoyminterval function is:
numtoyminterval( number, expression )
Where:
- number is the number to convert to an interval.
- expression is the unit. It must be one of the following values: YEAR or MONTH.
Examples
SQL> SELECT NumToYMInterval(1, 'month') FROM dual; NUMTOYMINTERVAL(1,'MONTH') --------------------------------------------------------------------------- +000000000-01
SQL> SELECT NumToYMInterval(1, 'year') FROM dual; NUMTOYMINTERVAL(1,'YEAR') --------------------------------------------------------------------------- +000000001-00