There are more ways of writing SQL queries than you can shake a stcik at and the method you use could be a factor here.
Normally you would simply write your SQL query as follows:
SELECT CUSTOMERNO, CUSTOMERNAME
This obviously pulls the customer ID number and their name from the table called customer.
Oracle SQL can specify the output column title of a query field by assigning your own title or value to it in quote marks. You could run a calculation for example, and force the output to be listed under your own prefered column headings, along the lines of:
SELECT EMPLOYEENAME, EMPLYEEDEPT, 4*(WAGE + OVERTIME) "MONTHLY SALARY"
This would pull out the employee name and department then would multiply their weekly wage plus overtime by four and output the numerical value under a column titled MONTHLY SALARY.
If you are running command line queries for Oracle or any one of several other methods, you may need to include \t or -t to toggle or disable headers, but since you seem to have the reverse problem where you can't get the column headings out I think I need to know how you are querying the database. And don't try and use Access SQL syntax because it's different to other database SQL in many respects.
Without further details I can't really advise much and it's been a while since I played with Oracle in depth, but get back to me and we'll see what we can do for you.