using “if” and “else” Stored Procedures MySQL

Question

I\'m having some difficulties when trying to create this stored procedure, any kind of help is welcome:

create procedure checando(in nombrecillo varchar(30),         


        

Answer 1

The problem is you either haven't closed your if or you need an elseif:

create procedure checando(
    in nombrecillo varchar(30),
    in contrilla varchar(30), 
    out resultado int)
begin 

    if exists (select * from compas where nombre = nombrecillo and contrasenia = contrilla) then
        set resultado = 0;
    elseif exists (select * from compas where nombre = nombrecillo) then
        set resultado = -1;
    else 
        set resultado = -2;
    end if;
end;