Can you explain the difference

Question

Hi,
Gurus, I have executed two queries, using TKPROF took output, unfortunately, I couldnt see the difference, can you please tell me is there any difference between these two queries ... ?
sql>exec dbms_monitor.session_trace_enable( waits=>true );
Case 1
=====
SQL> select count(*) from afe_reports;
COUNT(*)
6
Execution Plan
Plan hash value: 2793097447
| Id | Operation | Name | Rows | Cost (%CPU)| Time |
| 0 | SELECT STATEMENT | | 1 | 2 (0)| 00:00:01 |
| 1 | SORT AGGREGATE | | 1 | | |
| 2 | TABLE ACCESS FULL| AFE_REPORTS | 6 | 2 (0)| 00:00:01 |
Statistics
0 recursive calls
0 db block gets
3 consistent gets
0 physical reads
0 redo size
227 bytes sent via SQL*Net to client
240 bytes received via SQL*Net from client
2 SQL*Net roundtrips to/from client
0 sorts (memory)
0 sorts (disk)
1 rows processed
Case 2
======
SQL> select count(1) from afe_reports;
COUNT(1)
6
Execution Plan
Plan hash value: 2793097447
| Id | Operation | Name | Rows | Cost (%CPU)| Time |
| 0 | SELECT STATEMENT | | 1 | 2 (0)| 00:00:01 |
| 1 | SORT AGGREGATE | | 1 | | |
| 2 | TABLE ACCESS FULL| AFE_REPORTS | 6 | 2 (0)| 00:00:01 |
Statistics
1 recursive calls
0 db block gets
3 consistent gets
0 physical reads
0 redo size
227 bytes sent via SQL*Net to client
240 bytes received via SQL*Net from client
2 SQL*Net roundtrips to/from client
0 sorts (memory)
0 sorts (disk)
1 rows processed
Select count(*) from afe_reports ---- 1st query
Select count(1) from afe_reports ----- 2nd query
Regards

Answer 1

S both of us already told you there is no difference between the two. So, it is upto you to decide - whether you want to use count(*) or count(1).
It hardly matters.
After all it consumes the same resource and perform the same task.
So, It is your choice.
Enjoy!
Regards.
Satyaki De.