=============
virtual_table
=============

.. js:attribute:: virtual_table

**domain**: client 

**language**: javascript

**class** :doc:`Item class </refs/client/item_api>`

Description
===========

Use the read-only ``virtual_table`` property to find out if the item has a 
corresponding table in the project database.

If ``virtual_table`` is ``True`` there is no corresponding table in the project 
database. You can use these items to work with in-memory dataset or use its 
modules to write code.
Calling the 
:doc:`open <m_open>` 
method creates an empty data set, and calling the 
:doc:`apply <m_apply>`
method does nothing.