This might be a help for getting data to and from Excel and Access: It
includes examples of using variables in SQL queries.
http://www.bygsoftware.com/examples/sql.html

Or you can get there from the "Excel with Access Databases" section on page:
http://www.bygsoftware.com/examples/examples.htm

It demonstrates how to use SQL in Excel's VBA to:

* create a database,
* create a table and add data to it,
* select data from a table,
* delete a table,
* delete a database.

DAO and ADO files available.

You can also download the demonstration file called "excelsql.zip".

The code is open and commented.
--
Regards
Andy Wiggins
www.BygSoftware.com
Home of "Save and BackUp",
"The Excel Auditor" and "Byg Tools for VBA"

"Ed" wrote in message
...
I'm trying to use VBA to

1. Update a query in Access based on Excel based input
(i.e. an updated array(X) contains new data points to
filter against). In other words, how do I reference an
Access database and 'talk' to it? Does it need to be
open?
2. Once the query has been run, import the updated query
data into a worksheet in Excel.

Any starter advice/steps/code would be greatly
appreciated.

Thanks.