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F_ROSENMONTAG

function from adhoc

Entrypoint rosenmontag compatible with UTF-8

inputs/Outputs

   Input      INTEGER     year
   Output     DATE        date of Carnival Monday of the year

Syntax

   TestSQL
   SELECT '19.02.2007' AS ISCORRECT, F_ROSENMONTAG(2007) FROM RDB$DATABASE;
   SELECT NULL AS ISCORRECT, F_ROSENMONTA(NULL) FROM RDB$DATABASE;