In SQL Server 7 is there a way to Loop Thru every column?

The reason for doing this.

There are like 57 columns. They each hold Dollar values. Sometimes the Dollar values are extended to 4 decimal places and we don't want that.

Is there a way to loop thru the columns and apply the fix within query analyzer? No VB just SQL. Like maybe a column index you can loop thru or something?

Thanks