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F_EVEN

function from adhoc

Entrypoint evenodd compatible with UTF-8

Inputs/Outputs

   Input      INTEGER     integer
   Output     INTEGER     1 = is even, 0 = is odd

Syntax

   If a floatingpoint is used as input, it will be truncated first to integer and than tested!
   TestSQL
   SELECT 1 AS ISCORRECT, F_EVEN(2) FROM RDB$DATABASE;
   SELECT 0 AS ISCORRECT, F_EVEN(3) FROM RDB$DATABASE;
   SELECT 1 AS ISCORRECT, F_EVEN(0) FROM RDB$DATABASE;
   SELECT NULL AS ISCORRECT, F_EVEN(NULL) FROM RDB$DATABASE;