Sqlplus 'set null'

Question

Again, new to sqlplus and Oracle, so thanks in advance.
I am using 'set NULL "0"' to print a zero when I have a null value.
The problem I am having is that the "0" that is printing does not
seem to be behaving like the other column values (which are numbers).
set heading off
set echo on
set newpage 1
set pagesize 55
set linesize 66
column FW_STREAM_NAME FORMAT a20
column SUM(TOTAL_RECORDS) FORMAT 9,999 JUSTIFY RIGHT
--set NULL '0'
SELECT FW_STREAM_NAME, SUM(TOTAL_RECORDS) from BL_STATISTICS_FILE WHERE created_timestamp between
TO_DATE('20100826000000','yyyymmddhh24miss') AND
TO_DATE('20100826235900','yyyymmddhh24miss') GROUP BY FW_STREAM_NAME
and here is the output:
APPLES12345 2,810
ORANGES3456 36
BANANAS12456 16
PEARS6789 0
CHERRIES 131
Everything is lined up except my special column, where sqlplus has replace the null with
a "0" as I asked it to.
How can I get it to line up with the rest of the numerical column entries?
Thanks,
Mitch

Answer 1

Try this:
SQL> column sal FORMAT 9999999 JUSTIFY RIGHT
SQL> ed
Wrote file afiedt.buf
  1  select empid,salary sal from emp
  2  UNION
  3* SELECT empid,NVL(NULL,0) FROM emp
SQL> /
     EMPID      SAL
         1        0
         1     1002
         2        0
         2     2002
         3        0
         3     3002
         4        0
         4     4002
         5        0
         5     2000
         6        0
         6     2345
         7        0
         7    12345
        10        0
        10    12121
16 rows selected.
SQL> Edited by: AP on Aug 27, 2010 9:07 AM