Example of a subquery in a calculated field

Example of a subquery in a calculated field

You enter the expression in the Field cell in the query design grid. The fields you reference in the expression are from the tables or queries in the current query.

Expression Description
  
Cat: (SELECT [CategoryName] FROM [Categories] WHERE [Products].[CategoryID]=[Categories].[CategoryID]) Displays the CategoryName if the CategoryID from the Categories table is the same as the CategoryID from the Products table.