# Round float to 2 decimal place in the table

**2015-10-11 Views:3**

Hi, One field in a table in my DB has float datatype. I insert some data into this table. The value read from a textbox I input as 0.02 for example. after insertion, I select the table and the field of the table shows the number as 0.0199999995529652

One field in a table in my DB has float datatype.

I insert some data into this table. The value read from a textbox I input as 0.02 for example. after insertion, I select the table and the field of the table shows the number as 0.0199999995529652

Where did I do a wrong thing? how can I make it exactly as 0.02 in the table?

Thanks.

Float data types have known problems with precision, see

here

Since FLOAT and REAL are approximate numbers, you can run into all kinds of presentation / storage issues if you use them inadvertently.

They have their place, and if you are using scientific data that requires the properties of floating point numbers, th they are the right choice. But in most cases, I think this is another evolutionary thing that happens accidentally when you upsize

from Access. You are much better off using DECIMAL or NUMERIC (which are functionally equivalent) unless you really know that you should be using FLOAT.

You should consider changing the datatype to decimal or numeric if you need it to be more precise.

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