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Feb 17th, 2020
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  1. EXPLAIN PLAN SET STATEMENT_ID = 'Q1' FOR SELECT title FROM movie WHERE votes < 2000;
  2.  
  3. SQL> SELECT * FROM TABLE (DBMS_XPLAN. DISPLAY('plan_table','Q1'));
  4.  
  5. PLAN_TABLE_OUTPUT
  6. --------------------------------------------------------------------------------
  7.  
  8. --------------------------------------------------------------------------------
  9. --------
  10.  
  11. | Id | Operation | Name | Rows | Bytes | Cost
  12. (%CPU)|
  13.  
  14. --------------------------------------------------------------------------------
  15. --------
  16.  
  17. | 0 | SELECT STATEMENT | | 17 | 357 | 1
  18.  
  19. PLAN_TABLE_OUTPUT
  20. --------------------------------------------------------------------------------
  21. 8 (0)|
  22.  
  23. | 1 | TABLE ACCESS BY INDEX ROWID BATCHED| MOVIE | 17 | 357 | 1
  24. 8 (0)|
  25.  
  26. |* 2 | INDEX RANGE SCAN | MOVIE_VOTES | 17 | |
  27. 2 (0)|
  28.  
  29. --------------------------------------------------------------------------------
  30. --------
  31.  
  32.  
  33. PLAN_TABLE_OUTPUT
  34. --------------------------------------------------------------------------------
  35.  
  36. Predicate Information (identified by operation id):
  37. ---------------------------------------------------
  38.  
  39. 2 - access("VOTES"<2000)
  40.  
  41. Note
  42. -----
  43. - 'PLAN_TABLE' is old version
  44.  
  45. 17 rows selected.
  46.  
  47. SQL> SELECT count(*) FROM movie WHERE votes < 2000;
  48.  
  49. COUNT(*)
  50. ----------
  51. 4150
  52.  
  53.  
  54. SQL> SELECT count(*) FROM movie;
  55.  
  56. COUNT(*)
  57. ----------
  58. 9992
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