How to query a single partition of a table

Dear Experts,

Please, help me in this issue.

https://community.Oracle.com/thread/3511578

I try to get the number of records in a partition of a table. 11.2.0 Oracle database version

Picture is of size 700 GB.

Table is partitioned on COVERED_LINE_END_DATE using the range.

I want my query to run on particular partition

I created the local partition on COVERED_LINE_END_DATE index

I want to restrict my questions to a single partition, and then I want to use index to get quick results.

Currently my queries takes hours, and same table without partition table works well.

Please suggest me how this partition table.

I always ask this table by using the range of dates, which is quarterly.

so I partiton table quarterly. and then I want to index particular partition.

PLAN_TABLE_OUTPUT
--------------------------------------------------------------------------------
SQL_ID a75mjmfsd873v
--------------------
 select  count(1) FROM X_3_PV_TD_LINE_ITEMS_FF_REL_2 A  WHERE
A.COVERAGE = 'COVERED' AND A.SERIALIZED = 'Y'  AND
A.COVERED_LINE_END_DATE BETWEEN sysdate-30 AND sysdate


Plan hash value: 3089225921


------
| Id  | Operation                               | Name| Rows  | Bytes | Cost (%CPU)| Time     | Pstart| Pstop |    TQ  |IN-OUT| PQ Distrib |
----------------------------------------------------------------------------------------------------------------------------------------------------------------------
|   0 | SELECT STATEMENT                        ||       |       |  1425 (100)|          |       |       |        |      |     |
|   1 |  SORT AGGREGATE                         ||     1 |    21 |            |          |       |       |        |      |     |
|   2 |   PX COORDINATOR                        ||       |       |            |          |       |       |        |      |     |
|   3 |    PX SEND QC (RANDOM)                  | :TQ10000|     1 |    21 |            |          |       |       |  Q1,00 | P->S | QC (RAND)  |
|   4 |     SORT AGGREGATE                      ||     1 |    21 |            |          |       |       |  Q1,00 | PCWP |     |
|   5 |      FILTER                             ||       |       |            |          |       |       |  Q1,00 | PCWC |     |
|   6 |       PX PARTITION LIST ALL             ||  1307 | 27447 |  1425   (1)| 00:00:18 |     1 |     5 |  Q1,00 | PCWC |     |
|   7 |        TABLE ACCESS BY LOCAL INDEX ROWID| X_3_PV_TD_LINE_ITEMS_FF_REL_2|  1307 | 27447 |  1425   (1)| 00:00:18 |   KEY |   KEY |  Q1,00 | PCWP |     |
|   8 |         INDEX RANGE SCAN                | X_3_COVERED_LINE_END_DATE_IDX|  5229 |       |   209   (0)| 00:00:03 |   KEY |   KEY |  Q1,00 | PCWP |     |
----------------------------------------------------------------------------------------------------------------------------------------------------------------------
22 rows selected.

Thanks in advance for your help and your time.

Thus, a query today in February will span two partitions FY14Q3 and FY14Q2 * and * actually access all subparts in each of these two partitions because your query filter to a specific subpartition.

Hemant K Collette

Tags: Database

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    262151 3906766984

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    haraldsiMac: ~ haralddegraaf$

    The Macs listed to install Windows 7 and previous versions on your Mac with Boot Camp - Apple supported support W7. 2015 macs don't support W7.

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    Thank you for visiting the Forums HP's Support and welcome.
    You can find the frequently asked Questions for Windows upgrade 10

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    Best regards;
    Marcel
    I am an employee of HP
    Please click the White Star Kudos to say thank you for helping.
    Please check accept as Solution if my help has solved your problem.

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