Show message in stored procedure

Question

How do I show a message from a stored procedure?

What is the right syntax to display a message saying whether or not rows exist?

In SQL Server it's PRINT to show a message bat in WORKBENCH...

CREATE PROCEDURE `new_proced` (
    in myid     int(3)
)
BEGIN
    if not exists (select id from table where id = myid)
then
    show message 'Row no exists';
else
    show message 'Row exists';
end if;
END

Answer 1

Not entirely sure why you would want to do something like that, but you could do something like this: ...

then
  select 'YOUR MESSAGE HERE'  
else
  select 'YOUR OTHER MESSAGE HERE'
end if

Or you could select 1 or 0, might be a little better...