A query that requires you to provide one or more criteria values, such as Redmond for City, before the query is run. A parameter query is not, strictly speaking, a separate kind of query; rather, it extends the flexibility of other queries.
Using the Microsoft� OLE DB Provider for Jet in Microsoft Jet version 4.X, parameters can be exposed from procedures using the ANSI question mark (?) parameter markers. Using SQL syntax, you can create the equivalent to a QueryDef.