Re: need help to write a function in postgresql

> Then you can do:
>         select *
>     from retrieve_user('foo', 'bar');
>
> Personally I'd prefer to create view that wraps that select statement
> and then simply do a
>
>    select *
>    from user_view
>    where name = 'foo'
>    and password = 'bar'
It is also better because with a view, you can also do " name is null ".
But you cannot do that with a function (unless you write unnecessary
circumstancial code.)