SQL> SELECT COUNT(*) FROM sales_range 
  2  WHERE TO_CHAR(sales_date,'YYYYMM')='200605'; 
 
  COUNT(*) 
---------- 
     44641 
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| Id  | Operation            | Name        | Rows  | Bytes | Cost (%CPU)| Time     | Pstart| Pstop | 
---------------------------------------------------------------------------------------------------- 
|   0 | SELECT STATEMENT     |             |     1 |     8 |   877  (38)| 00:00:11 |       |       | 
|   1 |  SORT AGGREGATE      |             |     1 |     8 |            |          |       |       | 
|   2 |   PARTITION RANGE ALL|             |  5267 | 42136 |   877  (38)| 00:00:11 |     1 |     4 | 
|*  3 |    TABLE ACCESS FULL | SALES_RANGE |  5267 | 42136 |   877  (38)| 00:00:11 |     1 |     4 | 
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