write delete query for following in zend framework

问题:

I am having a situation in my MySQL database table of row repeating
So I got this

DELETE from table1
USING table1, table1 as vtable
WHERE (NOT table1.ID=vtable.ID)
AND (table1.field_name=vtable.field_name)

Where table1 is the table and vtable is a virtual table

How should I write that in Zend Framework

回答1:

Zend_Db_Select supports the USING clause, but I think it's not supported by the Zend_Db_Adapter delete() method.

A possible alternative would be passing the SQL expression directly to the connection (if you are using the pdo_mysql adapter, it will be a PDO object):

$db->getConnection()->exec($sqlExpression);

(IMPORTANT: Make sure you quote properly all the identifiers and values in the SQL sentence, Zend_Db_Adapter has some extensive documentation about this).

回答2:

I'm not sure what you are trying to do, but this is how to use a basic delete in Zend:

$db->delete('table1', array('ID != ?' => $otherID, 'field_name = ?' => $otherFieldName));

Is this what you are looking for?