Which data type is good to store amount of money booth for derby and Acces

hi,
I am developing an application that concern with problems of accounting.
I decided to use derby how database, as well in the while I am developing it, I prefer use Microsoft access, ...because I can easilier check the result of the elaboration using visual tools ..
I looked, for this reason, what type of data I could use that is both in Access and in derby, to store amount of money; and I thought the double type could be good for this purpose. As well I know that at the end of the develop to change to databese derby, I'll have to modify a some part of the code I wrote.
Now I should like know the opinion of someone that have more experience than I have, if my idea is right, and if the final work to change database can be not so hard.
If my idea is wrong, I should like to know what is a better idea to develop with Microsoft access and after distribuite the application with derby.
Thank you very much
tonyMrsangelo

tonyMrsangelo wrote:
hi,
I am developing an application that concern with problems of accounting.
I decided to use derby how database, as well in the while I am developing it, I prefer use Microsoft access, ...because I can easilier check the result of the elaboration using visual tools ..
That's fine.
I looked, for this reason, what type of data I could use that is both in Access and in derby, to store amount of money; and I thought the double type could be good for this purpose. As well I know that at the end of the develop to change to databese derby, I'll have to modify a some part of the code I wrote.
A double will work for the value. You'll just have to be careful about things like rounding rules.
What about currency type? USD, euro? Do you ever need to keep track of that, too? Are conversions important to your app?
%

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