Formulas in Ms Access

Question

I Need To write some formulas to calculate Field Value based on other fields values ( as like as what we do in excel ) , What is the best way to do it ? could you please recommend references ? thanks

Answer 1

Does this help?

http://www.techonthenet.com/access/functions/

If you are using MS Access in Design mode the online help and the code completion are quite good, they will guide you to make almost effortless.

Answer 2

You should give more details about what you want the formulas to do.

In short though you can enter formula sin the query design like this

NewColumnName: (value / formula)

When referencing other fields you want to include them in []

So you can say :

NewColumnName: [Column1] + 5

Finally if you plan to sart usng excel If statements, note that the syntax is similear but it's called IIF so it would be like:

NewColumnName: IIF( [Column1] > 0 , "Positive","Negitive")

Answer 3

I have a similar question - I have a table in MS Access that keeps the record of day to day expenses. The fields are :

ID :         AutoNumber
CompanyName: Text
AmountExcl : Currency
AmountVAT :  Currency
AmountIncl : Currency
Category :   Text

Now, I want the field AmountIncl to sum the amounts of AmountExcl + AmountVAT automatically. Will appreciate your advice.