Returns date_value with the time portion of the day rounded to the unit specified by fmt.
ANSI Compliance
This statement is a Teradata extension to the ANSI SQL:2011 standard.
Result Type
ROUND is a scalar function with a return data type of DATE.
If the data type of date_value is TIMESTAMP or TIMESTAMP WITH TIME ZONE, the return data type is DATE by default. If you want this function to return a TIMESTAMP value when you pass in TIMESTAMP as input, you must set the TruncRoundReturnTimestamp DBS Control field to TRUE.