问题
I have two problematic columns: Fee NUMBER type, AdjFee also NUMBER.
After
column Fee format a5;
select Fee ID smth
from Visit;
i get
Fee ID smth
#### 123 klkl
#### 654 rfjgr
回答1:
You can adjust the number of digits you want SQL*Plus to use to display the numeric data just as you adjust the number of characters used to display character data. Something like
column fee format 999999999.99
will tell SQL*Plus to display up to 9 digits before the decimal point and two after the decimal point. You can adjust that, of course, if you know your fees are going to be smaller (or larger).
回答2:
Yes, column names can be truncated (or) changed to the name you want
From your above select statement.
If you want to truncate 'Fee' column to 'Fe'. Here is the procedure -
col c1 heading "Fe" for a5
col c2 heading "ID" for 999
col c3 heading "smth" for a5
select fee c1, ID c2, smth c3 from visit;
来源：https://stackoverflow.com/questions/17284092/why-do-i-get-in-the-number-column-after-format-oracle