Calculated fields are convenient when you want to display a formula result on your query. And, since proper table design dictates that you don’t add calculated fields to a table because they are prime for user input errors, the perfect place for them is in a query and they’re as easy as creating a formula.
To help you with calculated fields, here are a few reminders:
Start each [removed]or, calculation) with the name of the calculated field followed by a colon (:). For example: “TotalPrice:”.
Surround field names with square brackets. For example: [UnitPrice] or [EmployeeName].
You can open the Zoom box to see all of your expression at one time by pressing [SHIFT]+[F2].
Creating A Calculated Control
Open a Query in Design View
Click in the first empty cell in the Query Properties Grid
Press [SHIFT]+[F2] to open the Zoom Dialog Box
Type your expression
Figure 44. Query Calculated [removed]Zoom Dialog Box)
5. Click OK to close the Zoom Dialog Box
6. Right-click the new query expression
7. Choose Properties from the Shortcut Menu
Figure 45. Query Field Property Sheet
8. Click the Format cell
9. Click the Drop-Down arrow and choose a column format
10. Save the Query
11. Run the Query and preview the results