I'm not sure I understand the question. You mean how to create a field with 4 or more decimal places? If so, you just have to specify the number of decimals you want in the decimal column in the modify structure form or specify N(10, 4) in a CREATE TABLE command. The first parameter specify the total lenght of the field (including the decimal point and the decimal part) and the second parameter specify the number of decimals.

HTH

>How to make decimal 2 the decimal 4 or more than 4?