Calculation expressions in Access 2016
Expressions in MS Access can be understood similarly to formulas in Excel. Expressions can include operators, constants, functions, and identifiers.
Expressions used to perform various tasks. In this article, TipsMake.com will guide you to create a specific type of expression called a calculation expression . We will create calculated fields and display data that is not available in the database that is calculated from the stored individual fields.
To illustrate, we use information from many different tables: tblKhachhang, tblSach, tblDonhang, tblChitietdonhang .

Run the query and you will see the following results.

Now we try to perform a simple calculation, taking the number of books placed multiplied by the selling price of one book to get the total amount to be paid. We call this field Total money.
Full expression:
Tongtien: [tblChitietDonhang]![Soluong]*[tblSach]![GiaChitiet]

Running the query, you can see that Tongtien field appears at the end.

Add a tax calculation column :
Thue: [Tongtien]*0.1

Run the query yourself and see the results in the last column.
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You should read it
- Work with data in Access 2016
- Unable to access 192.168.1.1: Cause and remedy
- Introduction to databases - Database
- Edit tables in Access 2016
- MS Access 2003 - Lesson 5: Chapter 2: Access Learning in 1 hour
- Convert old Access data to new Access (.accdb format)
- What is an Access Point? Should I use an Access Point, Router or Modem?
- Introduction to tables, queries, forms, reports in Access
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