Zend Framework create a sql function

Question

I would like to create a sql query in Zend Framework in the Abstract.php or in model? but I have a hard time figure out how to do it. I am new in zend framework.

The query that I want to create looks like that:

delete from users where id not in(select * from(select min(n.id)from users n group by n.email)x);

But in zend:

$results = $db->query('delete
                from users
                where id not in(
                    select * from(
                        min(n.id)
                        from users n
                        group by n.email
                )x)');

Look like the $db got a undefined variable, what kind of database function should the db call? My database is being call in the application.ini

Answer 1

you have to write this syntex for executing your custom query..

$db->getAdapter()->query('delete
                from users
                where id not in(
                    select * from(
                        min(n.id)
                        from users n
                        group by n.email
                )x)');