plsql - How to call a sql function? -

i have written function minimum2 take 2 numbers arguments , returns minimum number. function compiles without error. when call function minimum(1,2); errors pls-00103. here function , function call:

create or replace function minimum2(v1 number, v2 number) return number      begin        if v1 < v2          return v1;        else          return v2;        end if;      end;       --i call function asl follow  minimum2(1,2); 

what did wrong? wrote code in sql developer

you need run select

select minimum2(1,2)  dual 

you need end function /:

for details on how , why use / see here

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are aware there built-in function that?

select least(1,2)  dual