Create a computed column and round

Question

I have 3 numeric(18,2) columns in my table. I want to create a fourth column that is computed. I created the computed column in SSMS

Answer 1

You need to convert the computed column to numeric(18,2)

Example :

CREATE TABLE computed
  (
     a NUMERIC(18, 2),
     b NUMERIC(18, 2),
     c AS CONVERT(NUMERIC(18, 2), a * b)
  )

INSERT INTO computed VALUES (1,2)

SELECT *
FROM   computed