Examples of expressions that use the result of subqueries as criteria

Field Expression Displays
UnitPrice (SELECT [UnitPrice] FROM [Products] WHERE [ProductName] = "Aniseed Syrup") Products whose price is the same as the price of Aniseed Syrup.
UnitPrice >(SELECT AVG([UnitPrice]) FROM [Products]) Products that have a unit price above the average.
Salary > ALL (SELECT [Salary] FROM [Employees] WHERE ([Title] LIKE "*Manager*") OR ([Title] LIKE "*Vice President*")) Salary of every sales representative whose salary is higher than that of all employees with "Manager" or "Vice President" in their titles.
OrderTotal:
[Unit Price]*
[Quantity]
> ALL (SELECT AVG([UnitPrice] * [Quantity]) FROM [Order Details]) Orders with totals that are higher than the average order value.