What is the use of the abstract class Zend_Db_Table?

It's empty. I always use Zend_Db_Table_Abstract.

The chapter Zend_Db_Table in the Framework Reference Guide only uses the Zend_Db_Table_Abstract too..

But it must be there for a good reason

I hope that someone can explane it to me.

greetings Nangko

I suppose at the moment it only acts like an alias.

But it does look a bit neater, and in the future it's possible that it will have more code than Abstract.php does.

Personally I extend Abstract if I'm making a library class that acts as a generic extension of Abstract. If I'm just making a db table model I'll extend Zend_Db_Table. I just find it neater that way.

Zend_Db_Table is a relic of the beta days and we depreciated at one point in favor of Zend_Db_Table_Abstract. You should be using Zend_Db_Table_Abstract in your model classes unless you have extended it to create your own base Db_Table class.