This function is only available when connected to a Teradata database.
A Period Timestamp literal may look like PERIOD ‘(2012-04-01 08:30:00 – 2012-04-30 13:00:00)’ where dates are in a year-month-day format and 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 on April 1st to 1:00 PM on April 30th.
In keeping with Timestamp 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 Timestamp literals are not available as literal parameters, but again the Text Literal Parameter may be used to specify a Period Timestamp value as a literal parameter.