Hi everyone,
i'm new on V.B. I have a little issue

V_Rate = SystemScript.GetDatabaseValue(V_SQL & "", "NVL(COLUMN A,0)", "TABLE C")
V_LoadingAmount = SystemScript.GetDatabaseValue(V_SQL & "", "NVL(COLUMN B,0)", "TABLE C")

COLUMN A and COLUMN B type's are number on table C

where i try this formula

V_Premium = (V_Valeur_Venale * V_Rate / 1000) + V_LoadingAmount

an error message is displayed Type incompatible: 'V_RATE'

can somebody advise?