Question

Hey I was wondering you know how its possible to use “-” to subtract in the SELECT part of a query. So can you also use “+” to add? I’ve tried that and instead of adding the values together it does this 123+0.28=1230.28 does that maybe have anything to do with the number being in text format? But I hadn’t ever changed format from when i used “-” and that worked . Thanks

my code :

INSERT INTO Table( Question, Calculation)

SELECT DISTINCT 'Addition' AS Question,(T2.Calculation + T1.Calculation) AS Calculation

FROM Some_Table T2, Some_Table T1

ORDER BY T2.Question;

Answer 1

yes, you can use '+' to add two numbers together.

SELECT table1.Field1, table1.Field2, Field1+field2 As SumOfFields
FROM table1;

Field1  Field2  SumOfFields
1       2       3
2       3       5

EDIT:
If you have strings that you want to add together then you need to convert the fields to a number: – since it was pointed out that CLng wouldn’t help the OP. It have been changed to CDbl to allow for the decimal.

SELECT table1.Field1, table1.Field2, CDbl(Field1)+CDbl(field2) As SumOfFields
FROM table1;