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F_FIRSTDAYLASTQUARTER

function from adhoc

Entrypoint firstdaylastquarter compatible with UTF-8

Inputs/Outputs

   Input      TIMESTAMP     date optionally time
   Output     TIMESTAMP     date of 1st day of last quarter as date with time 00:00:00

Syntax

   TestSQL
   SELECT '01.01.2009' AS ISCORRECT, F_FIRSTDAYLASTQUARTER('08.05.2009 15:00:00') FROM RDB$DATABASE;
   SELECT '01.10.2008' AS ISCORRECT, F_FIRSTDAYLASTQUARTER('08.02.2009 15:00:00') FROM RDB$DATABASE;