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SQL> CREATE TABLE T_NEW (ID, TIME) PARTITION BY RANGE (TIME) 
  2  (PARTITION P1 VALUES LESS THAN (TO_DATE('2004-7-1', 'YYYY-MM-DD')), 
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  4  PARTITION P3 VALUES LESS THAN (TO_DATE('2005-7-1', 'YYYY-MM-DD')), 
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  6  AS SELECT ID, TIME from T; 
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SQL> RENAME T TO T_OLD; 
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