I have this Query ---->Select Infofin_prod.maquinaid,nicname,Infofin_prod.idprod,NomeProd,StockFrom Infofin_prod INNER JOIN Maquina on maquina.maquinaid=Infofin_prod.maquinaid INNER JOIN Stockss on stockss.maquinaid=Infofin_prod.maquinaid INNER JOIN Produtos on produtos.idprod=Infofin_prod.idprodGroup by Infofin_prod.maquinaid,nicname,Infofin_prod.idprod,NomeProd,StockOrder by StockI Want print a message if the Stock = 0, but i don't know i do it with a if condition