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Message Posted: Sat, 05 Sep 2009 @ 16:21:55 GMT

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Teradata 13.0 permits "scalar subquery" so you could use syntax closer to what's in your post. Otherwise, you need to move the subquery to the FROM clause as a derived table expression, for example:

     Select L.* from Loan L
     CROSS JOIN
     (select day_of_week from sys_calendar.calendar
      Where calendar_date = current_date) D
     Where L.Application_Date between
     case when D.day_of_week <> 2 then current_date - 1 else current_date - 3
     end
     And current_date -1;

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