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F_KARNEVALSDIENSTAG
function from adhoc
Entrypoint karnevalsdienstag compatible with UTF-8
Inputs/Outputs
Input INTEGER year Output DATE date of Mardi Gras of the year
Syntax
TestSQL SELECT '20.02.2007' AS ISCORRECT, F_KARNEVALSDIENSTAG(2007) FROM RDB$DATABASE; SELECT NULL AS ISCORRECT, F_KARNEVALSDIENSTAG(NULL) FROM RDB$DATABASE;