SQL query time-out


Hello Experts,

I received 2 days with a performance thing, but no luck.

We have a custom user who runs specific sqls in an instance both Test and Prod. Prod its < 1 sec for each race to test everything taking more than 5 seconds. To do this, we have created a trigger to get the sqls. But I did not how to go further and compare things with env Prod.

While the generation to explain the plan gives

SQL > SELECT * FROM TABLE (dbms_xplan.display_cursor ('cavskqs3j74qr'));

PLAN_TABLE_OUTPUT
--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
SQL_ID, cavskqs3j74qr, number of children 0

begin XXINT_INV_ITEM_IMPORT.check_item (i_version_number = >: i_version_numb)
o_return_message = >: o_return_message); end;

NOTE: cannot fetch SQL_ID plan: cavskqs3j74qr, CHILD_NUMBER: 0
Check the value of SQL_ID and CHILD_NUMBER;
It could also be that the plan is no longer in the cursor cache (check v$ sql_plan)


11 selected lines.

You will appreciate if someone helps me on the same?

Thank you

Prabhat.

Find out what is in: XXINT_INV_ITEM_IMPORT.check_item

It is a function or a procedure or package, and inside, is the statement that goes wrong.

It is the statement that you will need the execution plan of.

If you have the active trigger (both on the prod and UN-made) you will have a lot of TRC files. This TRC file should mention somewhere

XXINT_INV_ITEM_IMPORT.check_item

Then you TKPROF this trace file, then you should be able to find higher education, even though the total runs only 5 seconds.

Tags: Oracle Applications

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    Reference table1.jpg

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    Reference table2.jpg

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    Reference table3.jpg

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| Id  | Operation                                         | Name           | Rows  | Bytes | Cost (%CPU)| Time     |
--------------------------------------------------------------------------------------------------------------------
|   0 | SELECT STATEMENT                                  |                | 54117 |    92M|  4435K  (1)| 01:58:43 |
|   1 |  NESTED LOOPS OUTER                               |                | 54117 |    92M|  4435K  (1)| 01:58:43 |
|   2 |   NESTED LOOPS OUTER                              |                | 54117 |    87M|  4261K  (1)| 01:54:04 |
|   3 |    NESTED LOOPS OUTER                             |                | 54117 |    86M|  4154K  (1)| 01:51:13 |
|   4 |     NESTED LOOPS OUTER                            |                | 54117 |    85M|  4111K  (1)| 01:50:03 |
|   5 |      NESTED LOOPS OUTER                           |                | 54117 |    84M|  3980K  (1)| 01:46:33 |
|   6 |       NESTED LOOPS OUTER                          |                | 54117 |    83M|  3937K  (1)| 01:45:24 |
|   7 |        NESTED LOOPS OUTER                         |                | 54117 |    81M|  3763K  (1)| 01:40:44 |
|   8 |         NESTED LOOPS OUTER                        |                | 54117 |    81M|  3751K  (1)| 01:40:25 |
|   9 |          NESTED LOOPS OUTER                       |                | 54117 |    80M|  3621K  (1)| 01:36:57 |
|  10 |           NESTED LOOPS OUTER                      |                | 54117 |    73M|  3515K  (1)| 01:34:07 |
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|  14 |               NESTED LOOPS OUTER                  |                | 54117 |    66M|  3410K  (1)| 01:31:18 |
|  15 |                NESTED LOOPS OUTER                 |                | 54117 |    64M|  3324K  (1)| 01:28:59 |
|  16 |                 NESTED LOOPS OUTER                |                | 54117 |    62M|  3237K  (1)| 01:26:40 |
|  17 |                  NESTED LOOPS                     |                | 54117 |    57M|  3106K  (1)| 01:23:10 |
|  18 |                   NESTED LOOPS OUTER              |                |    71 | 43665 |   381   (2)| 00:00:01 |
|  19 |                    NESTED LOOPS OUTER             |                |    71 | 42316 |   323   (2)| 00:00:01 |
|  20 |                     NESTED LOOPS OUTER            |                |    71 | 41322 |   322   (2)| 00:00:01 |
|  21 |                      NESTED LOOPS                 |                |    71 | 24708 |   265   (3)| 00:00:01 |
|  22 |                       NESTED LOOPS                |                |    77 |  2772 |   141   (4)| 00:00:01 |
|* 23 |                        TABLE ACCESS FULL          | S_VOD_VER      |    75 |  1350 |    72   (7)| 00:00:01 |
|  24 |                        TABLE ACCESS BY INDEX ROWID| S_VOD          |     1 |    18 |     1   (0)| 00:00:01 |
|* 25 |                         INDEX UNIQUE SCAN         | S_VOD_P1       |     1 |       |     1   (0)| 00:00:01 |
|  26 |                       TABLE ACCESS BY INDEX ROWID | S_PROD_INT     |     1 |   312 |     2   (0)| 00:00:01 |
|* 27 |                        INDEX RANGE SCAN           | S_PROD_INT_F9  |     1 |       |     1   (0)| 00:00:01 |
|  28 |                      TABLE ACCESS BY INDEX ROWID  | S_PROD_LN      |     1 |   234 |     1   (0)| 00:00:01 |
|* 29 |                       INDEX UNIQUE SCAN           | S_PROD_LN_P1   |     1 |       |     1   (0)| 00:00:01 |
|  30 |                     TABLE ACCESS BY INDEX ROWID   | S_CTLG_CAT     |     1 |    14 |     1   (0)| 00:00:01 |
|* 31 |                      INDEX UNIQUE SCAN            | S_CTLG_CAT_P1  |     1 |       |     1   (0)| 00:00:01 |
|  32 |                    TABLE ACCESS BY INDEX ROWID    | S_CTLG_CAT     |     1 |    19 |     1   (0)| 00:00:01 |
|* 33 |                     INDEX UNIQUE SCAN             | S_CTLG_CAT_P1  |     1 |       |     1   (0)| 00:00:01 |
|* 34 |                   TABLE ACCESS BY INDEX ROWID     | S_ASSET        |   760 |   375K| 43753   (1)| 00:01:11 |
|* 35 |                    INDEX RANGE SCAN               | S_ASSET_U2     | 55873 |       |   312   (3)| 00:00:01 |
|  36 |                  TABLE ACCESS BY INDEX ROWID      | S_ASSET_OM     |     1 |    94 |     2   (0)| 00:00:01 |
|* 37 |                   INDEX RANGE SCAN                | S_ASSET_OM_U1  |     1 |       |     2   (0)| 00:00:01 |
|  38 |                 TABLE ACCESS BY INDEX ROWID       | S_CONTACT      |     1 |    39 |     2   (0)| 00:00:01 |
|* 39 |                  INDEX UNIQUE SCAN                | S_CONTACT_P1   |     1 |       |     1   (0)| 00:00:01 |
|  40 |                TABLE ACCESS BY INDEX ROWID        | S_ADDR_PER     |     1 |    29 |     2   (0)| 00:00:01 |
|* 41 |                 INDEX UNIQUE SCAN                 | S_ADDR_PER_P1  |     1 |       |     1   (0)| 00:00:01 |
|  42 |               TABLE ACCESS BY INDEX ROWID         | S_ORG_EXT      |     1 |    32 |     1   (0)| 00:00:01 |
|* 43 |                INDEX UNIQUE SCAN                  | S_ORG_EXT_U3   |     1 |       |     1   (0)| 00:00:01 |
|  44 |              TABLE ACCESS BY INDEX ROWID          | S_ORG_EXT      |     1 |    32 |     1   (0)| 00:00:01 |
|* 45 |               INDEX UNIQUE SCAN                   | S_ORG_EXT_U3   |     1 |       |     1   (0)| 00:00:01 |
|  46 |             TABLE ACCESS BY INDEX ROWID           | S_ORG_EXT      |     1 |    32 |     1   (0)| 00:00:01 |
|* 47 |              INDEX UNIQUE SCAN                    | S_ORG_EXT_U3   |     1 |       |     1   (0)| 00:00:01 |
|  48 |            TABLE ACCESS BY INDEX ROWID            | S_ORG_EXT      |     1 |    36 |     2   (0)| 00:00:01 |
|* 49 |             INDEX UNIQUE SCAN                     | S_ORG_EXT_U3   |     1 |       |     1   (0)| 00:00:01 |
|  50 |           TABLE ACCESS BY INDEX ROWID             | S_ORG_EXT      |     1 |   139 |     2   (0)| 00:00:01 |
|* 51 |            INDEX UNIQUE SCAN                      | S_ORG_EXT_U3   |     1 |       |     1   (0)| 00:00:01 |
|  52 |          TABLE ACCESS BY INDEX ROWID              | S_ORG_EXT_X    |     1 |    16 |     2   (0)| 00:00:01 |
|* 53 |           INDEX RANGE SCAN                        | S_ORG_EXT_X_U1 |     1 |       |     2   (0)| 00:00:01 |
|* 54 |         INDEX UNIQUE SCAN                         | S_PARTY_P1     |     1 |    12 |     1   (0)| 00:00:01 |
|  55 |        TABLE ACCESS BY INDEX ROWID                | S_ASSET_BU     |     1 |    34 |     3   (0)| 00:00:01 |
|* 56 |         INDEX RANGE SCAN                          | S_ASSET_BU_U1  |     1 |       |     2   (0)| 00:00:01 |
|* 57 |       INDEX UNIQUE SCAN                           | S_PARTY_P1     |     1 |    12 |     1   (0)| 00:00:01 |
|  58 |      TABLE ACCESS BY INDEX ROWID                  | S_ASSET        |     1 |    37 |     2   (0)| 00:00:01 |
|* 59 |       INDEX UNIQUE SCAN                           | S_ASSET_P1     |     1 |       |     2   (0)| 00:00:01 |
|  60 |     TABLE ACCESS BY INDEX ROWID                   | S_PROD_INT     |     1 |    16 |     1   (0)| 00:00:01 |
|* 61 |      INDEX UNIQUE SCAN                            | S_PROD_INT_P1  |     1 |       |     1   (0)| 00:00:01 |
|  62 |    TABLE ACCESS BY INDEX ROWID                    | S_ORG_EXT      |     1 |    14 |     2   (0)| 00:00:01 |
|* 63 |     INDEX UNIQUE SCAN                             | S_ORG_EXT_U3   |     1 |       |     1   (0)| 00:00:01 |
|  64 |   TABLE ACCESS BY INDEX ROWID                     | S_ASSET_X      |     1 |    93 |     3   (0)| 00:00:01 |
|* 65 |    INDEX RANGE SCAN                               | S_ASSET_X_U1   |     1 |       |     2   (0)| 00:00:01 |
--------------------------------------------------------------------------------------------------------------------

Predicate Information (identified by operation id):
---------------------------------------------------

  23 - filter("T9"."VER_NUM"=TO_NUMBER(:1))
  25 - access("T3"."ROW_ID"="T9"."VOD_ID")
  27 - access("T14"."CFG_MODEL_ID"="T3"."OBJECT_NUM")
  29 - access("T14"."PR_PROD_LN_ID"="T7"."ROW_ID"(+))
  31 - access("T14"."CG_PR_CTLG_CAT_ID"="T16"."ROW_ID"(+))
  33 - access("T16"."PAR_CAT_ID"="T10"."ROW_ID"(+))
  34 - filter("T23"."PAR_ASSET_ID" IS NULL AND "T23"."SERIAL_NUM" IS NOT NULL OR "T23"."X_PHONE_NUMBER" IS
              NOT NULL AND "T23"."PAR_ASSET_ID" IS NOT NULL)
  35 - access("T23"."PROD_ID"="T14"."ROW_ID")
  37 - access("T23"."ROW_ID"="T8"."PAR_ROW_ID"(+))
  39 - access("T23"."OWNER_CON_ID"="T11"."ROW_ID"(+))
  41 - access("T23"."PER_ADDR_ID"="T20"."ROW_ID"(+))
  43 - access("T23"."RTNG_DLR_ID"="T1"."PAR_ROW_ID"(+))
  45 - access("T23"."DLR_ID"="T4"."PAR_ROW_ID"(+))
  47 - access("T23"."PREF_SRV_DLR_ID"="T17"."PAR_ROW_ID"(+))
  49 - access("T23"."BILL_ACCNT_ID"="T18"."PAR_ROW_ID"(+))
  51 - access("T23"."OWNER_ACCNT_ID"="T21"."PAR_ROW_ID"(+))
  53 - access("T23"."OWNER_ACCNT_ID"="T6"."PAR_ROW_ID"(+))
  54 - access("T23"."PR_CON_ID"="T12"."ROW_ID"(+))
  56 - access("T23"."ROW_ID"="T15"."ASSET_ID"(+) AND "T23"."BU_ID"="T15"."BU_ID"(+))
  57 - access("T15"."BU_ID"="T13"."ROW_ID"(+))
  59 - access("T23"."ROOT_ASSET_ID"="T19"."ROW_ID"(+))
  61 - access("T19"."PROD_ID"="T2"."ROW_ID"(+))
  63 - access("T15"."BU_ID"="T5"."PAR_ROW_ID"(+))
  65 - access("T23"."ROW_ID"="T22"."PAR_ROW_ID"(+))

Note
-----
   - dynamic sampling used for this statement

105 rows selected.

    Hello

    It is not necessary to display the trace file - everything is clear from the plans that you have posted. The optimizer is the selectivity calculation assuming the absence of correlation between the columns. You can do these calculations that yourself and you see that if the entries are correct and if the hypothesis of lack of correlation is also correct, then the results should be correct, too. Since they are not, it's one of two things: optimizer stats are wrong, or the columns are in fact related.

    First of all check the optimizer statistics: i.e. take NUM_ROWS and NUM_NULLS of DBA_TAB_COL_STATISTICS and compare them with the actual rowcounts. If they are correct (in a reasonable error margin), then it means that the columns are correlated, and the optimizer will need additional assistance to obtain right of cardinalities.

    Best regards
    Nikolai

  • Efficient SQL query

    Hello
    I need to write an efficient query because the query about 4 checks to be made on the lines before you return one row. Here's a sample script in query to create the table:

    CREATE TABLE "myschema". "" Complaint. "
    (
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    "ReplyTime' NUMBER,-it would be in a few minutes
    "CREATION_TIME' TIMESTAMP (6).
    NUMBER OF 'STATUS ',.
    "TYPE" NUMBER


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    2. If no line found for 1 check then
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    and back to the line that has more big differene in - ve (it is the line which expired first)

    3. If now the found line to check then the 2
    rank next where STATUS = 22

    4. If no line found to check then the 3
    calculate a difference in time for all of the lines as: time_difference (CREATION_TIME - ReplyTime)
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    Kindly help me in this task.

    Thank you.

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    I have the suggestion of Daniel while avoiding reserved words and now I see an error in copy/paste complaint_ casetypestatus when 22 then 22 end check3

    @2
    Bilal already you made in the right direction, anyway: as many others pointed out that you can not combine functions of the group the way which you intend to so using functions analytical has been the only issue keeping all lines and the calculation of the required amounts and charges in the query internal to combine in the outer query.
    complaint_type case when 11 11 then end keeps only the 11 complaint_type all other complaint_type null values
    Max (case complaint_type when 11 11 then complete) on check1_max (order by NULL rows between unbounded preceding and following unbounded), calculates the global maximum of the expression (in all the rows of the table)

    @3
    I used systimestamp - (creation_time + reply_time / 60/24) just to produce a positive or negative number as your time_difference (CREATION_TIME - ReplyTime) somehow confused me (timestamp less number gives timestamp if positive or negative is not an appropriate question) so the above expression as used so far is something you know how (re) set. Other required clarification/explanation at this stage.

    @4
    If the fraction of the second precision is not necessary using the date data type should be sufficient (environmental CAR you cannot rule out dealing with the events with the same timestamp) and what is the thrown error using systimestamp

    Concerning

    Etbin

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