This function is only available when connected to a Teradata database.
A Period Time literal may look like PERIOD ‘(08:30:00 - 13:00:00)’ where hours, minutes and whole seconds are displayed separated by colon characters, with hours displayed in a 24-hour format, so that this example represents 8:30 AM to 1:00 PM.
In keeping with Time literals, fractions of a second and time zones are not supported. If either of these is desired, it is possible to use the Text literal SQL element to include either or both of them. Also, Period Time literals are not available as literal parameters, but again the Text Literal Parameter may be used to specify a Period Time value as a literal parameter.