>How can I solve the problem about numbers that near or above 18 billion rounds ?
>For examples I entered 18,234,432,210 it shows me 18,000,000,000.
>Thanks.

Hey brother how are you :)
Use float instead of numeric field. Numeric loses precision somewhere about 17+ billion (no idea and no solution).
Also if you do select it converts to numeric type. You might need to convert it to float too (ie: create a cursor and append from select result).
Cetin