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Truncates a number at a specified number of places after the decimal point.
TRUNCNUM ( numeric-expression, integer-expression )
numeric-expression The number to be truncated.
integer-expression A positive integer specifies the number of significant digits to the right of the decimal point at which to round. A negative expression specifies the number of significant digits to the left of the decimal point at which to round.
The following statement returns the value 600:
SELECT TRUNCNUM( 655, -2 ) FROM iq_dummy
The following statement: returns the value 655.340:
SELECT TRUNCNUM( 655.348, 2 ) FROM iq_dummy
This function is the same as TRUNCATE, but does not cause keyword conflicts.
You can use combinations of ROUND, FLOOR, and CEILING to provide similar functionality.
