Regarding partition table..pls help

I am creating a table
as
CREATE TABLE T3
PARTITION BY RANGE(CREATED)
(PARTITION T1 VALUES LESS THAN (TO_DATE('01-APR-2006','DD-MON-YYYY')),
PARTITION T2 VALUES LESS THAN (TO_DATE('01-JUN-2006','DD-MON-YYYY')))
AS SELECT * FROM T1
am getting error :
ORA-14400: inserted partition key does not map to any partition
since am new to the partitioning concepts, pls help.
Thanks.

Oups :-)
I referenced the source table name (T1) instead on the newly partitionned table (T3) fromyour original post, sory :)
The select should read:
SELECT *
FROM T3 PARTITION (T3);
Thinking of that, you should give another name to the partition in order to avoid confusion!
Yoann.

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    AND (:i_person                                                IS NULL
    OR active_person_code                                          = :i_person)
    AND (:i_element                                               IS NULL
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    AND sc.month            = 'MAY'
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    AND (:i_subject_option IS NULL
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    AND (:i_lvl            IS NULL
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    AND (:i_component      IS NULL
    OR sc.component         = :i_component)
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    PLAN_TABLE_OUTPUT                                                                                                                                                                                                                                                                                           
    Plan hash value: 2770926248                                                                                                                                                                                                                                                                                 
    | Id  | Operation                            | Name                          | Rows  | Bytes | Cost (%CPU)| Time     | Pstart| Pstop |                                                                                                                                                                      
    |   0 | SELECT STATEMENT                     |                               |     1 |   369 |  2601  (28)| 00:00:23 |       |       |                                                                                                                                                                      
    |   1 |  WINDOW BUFFER                       |                               |     1 |   369 |  2601  (28)| 00:00:23 |       |       |                                                                                                                                                                      
    |*  2 |   TABLE ACCESS BY LOCAL INDEX ROWID  | IBIS_AUDIT                    |     1 |   294 |  2601  (28)| 00:00:23 |   181 |   181 |                                                                                                                                                                      
    |   3 |    NESTED LOOPS                      |                               |     1 |   369 |  2601  (28)| 00:00:23 |       |       |                                                                                                                                                                      
    |   4 |     SORT UNIQUE                      |                               |     1 |    75 |    44   (0)| 00:00:01 |       |       |                                                                                                                                                                      
    |*  5 |      TABLE ACCESS BY INDEX ROWID     | SUBJECT_COMPONENT             |     1 |    75 |    44   (0)| 00:00:01 |       |       |                                                                                                                                                                      
    |*  6 |       INDEX RANGE SCAN               | SUBJECT_COMPONENT_ASSESS_TYPE |  1131 |       |     8   (0)| 00:00:01 |       |       |                                                                                                                                                                      
    |   7 |     PARTITION RANGE SINGLE           |                               |       |       |            |          |    37 |    37 |                                                                                                                                                                      
    |   8 |      PARTITION LIST SINGLE           |                               |       |       |            |          |   KEY |   KEY |                                                                                                                                                                      
    |   9 |       BITMAP CONVERSION TO ROWIDS    |                               |       |       |            |          |       |       |                                                                                                                                                                      
    |  10 |        BITMAP AND                    |                               |       |       |            |          |       |       |                                                                                                                                                                      
    |  11 |         BITMAP CONVERSION FROM ROWIDS|                               |       |       |            |          |       |       |                                                                                                                                                                      
    |* 12 |          INDEX RANGE SCAN            | IBIS_AUDIT_SCHOOL             | 21826 |       |    33   (4)| 00:00:01 |   181 |   181 |                                                                                                                                                                      
    |  13 |         BITMAP CONVERSION FROM ROWIDS|                               |       |       |            |          |       |       |                                                                                                                                                                      
    |* 14 |          INDEX RANGE SCAN            | IBIS_AUDIT_PAPER              | 21826 |       |    84   (4)| 00:00:01 |   181 |   181 |                                                                                                                                                                      
    Predicate Information (identified by operation id):                                                                                                                                                                                                                                                         
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    12 - access("SCHOOL"='000008')                                                                                                                                                                                                                                                                            
    14 - access("SC"."PAPER_CODE"="IA"."PAPER_CODE")                                                                                                                                                                                                                                                          
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