| Id | Operation | Name | Rows | Bytes | Cost (%CPU)| Time |
--------------------------------------------------------------------------
| 0 | SELECT STATEMENT | | 2 | 380 | 3 (0)| 00:00:01 |
| 1 | TABLE ACCESS FULL| T1 | 2 | 380 | 3 (0)| 00:00:01 |
--------------------------------------------------------------------------
Note
-----
- dynamic sampling used for this statement (level=2)
Statistics
----------------------------------------------------------
0 recursive calls
0 db block gets
4 consistent gets
0 physical reads
0 redo size
1442 bytes sent via SQL*Net to client
419 bytes received via SQL*Net from client
2 SQL*Net roundtrips to/from client
0 sorts (memory)
0 sorts (disk)
2 rows processed
Now the error has been resolved. To conclusion, there are two important scripts we need to know.
1, $ORACLE_HOME/sqlplus/admin/plustrce.sql
2, $ORACLE_HOME/rdbms/admin/utlxplan.sql