Particular Request taking more time to complete

Dear All,
We work on 12.0.6 and Sun Solaris 64-bit is the OS. A particular request regularly submitted by a user used to take not more than 30 mins to finish. However for the past 3-4 days this request is running for more than 4-5 hours. I checked if the sid for the request id was being blocked,but nothing of that sort. Also when an advisory was run,it said to gather statistics for certain indexes and tables. Even after doing the same,the request continued for running longer than usual. Please advise me what else shall I look out for,meaning any particular things that I need to watch out for? The user wants the request to finish early but despite all our efforts,we are not able to get a positive workaround.Please advise.

Do you have the statistics collected up to date? Do you run Gather Schema Statistics concurrent program on regular basis?
The request is named "Actual Cost Worker" .Please see these docs.
Poor Performance - Cmcacw - Full Table Scan - Mtl_material_transactions [ID 1121023.1]
ACTUAL COST WORKER PERFORMANCE ISSUE [ID 1068311.1]
Actual Cost Worker Progam Performance Issue [ID 955924.1]
CMCLCW - Layer Cost Worker Performance Drop Significant After Patch 8442125 was Applied [ID 961214.1]
Performance Issue For Periodic Actual Cost Processor [ID 734075.1]
Wil enabling trace have any impact on the system performance as we already face a lot of issues related to performance.No.
Thanks,
Hussein

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    |   4 |     NESTED LOOPS OUTER                                 |                   |    39M|    69G|       |   483M  (1)|215:41:04 |
    |   5 |      NESTED LOOPS OUTER                                |                   |    39M|    68G|       |   483M  (1)|215:41:04 |
    |   6 |       NESTED LOOPS OUTER                               |                   |    39M|    67G|       |   483M  (1)|215:41:04 |
    |   7 |        NESTED LOOPS OUTER                              |                   |    39M|    66G|       |   406M  (1)|181:17:50 |
    |   8 |         NESTED LOOPS OUTER                             |                   |    39M|    65G|       |   343M  (1)|153:12:57 |
    |   9 |          NESTED LOOPS OUTER                            |                   |    39M|    64G|       |   311M  (1)|139:04:56 |
    |  10 |           NESTED LOOPS OUTER                           |                   |    39M|    63G|       |   185M  (1)| 82:37:56 |
    |  11 |            NESTED LOOPS OUTER                          |                   |    39M|    54G|       |   108M  (1)| 48:11:29 |
    |  12 |             NESTED LOOPS OUTER                         |                   |    39M|    53G|       |   108M  (1)| 48:11:29 |
    |  13 |              NESTED LOOPS OUTER                        |                   |    39M|    51G|       |    76M  (1)| 34:03:51 |
    |  14 |               NESTED LOOPS OUTER                       |                   |    39M|    49G|       |    76M  (1)| 34:03:51 |
    |  15 |                NESTED LOOPS OUTER                      |                   |    39M|    46G|       |    76M  (1)| 34:03:51 |
    |  16 |                 NESTED LOOPS OUTER                     |                   |    39M|    44G|       |    76M  (1)| 34:03:51 |
    |  17 |                  NESTED LOOPS OUTER                    |                   |    39M|    40G|       |    65M  (1)| 29:25:49 |
    |  18 |                   NESTED LOOPS OUTER                   |                   |    39M|    39G|       |    65M  (1)| 29:25:49 |
    |  19 |                    NESTED LOOPS OUTER                  |                   |    39M|    38G|       |    65M  (1)| 29:25:49 |
    |  20 |                     NESTED LOOPS OUTER                 |                   |    39M|    34G|       |    65M  (1)| 29:17:44 |
    |  21 |                      NESTED LOOPS OUTER                |                   |    39M|    32G|       |    65M  (1)| 29:17:08 |
    |  22 |                       NESTED LOOPS OUTER               |                   |    39M|    31G|       |    65M  (1)| 29:09:04 |
    |  23 |                        NESTED LOOPS OUTER              |                   |    39M|    30G|       |  2043K  (9)| 00:54:42 |
    |  24 |                         NESTED LOOPS OUTER             |                   |    39M|    30G|       |  2043K  (9)| 00:54:42 |
    |  25 |                          NESTED LOOPS OUTER            |                   |    39M|    25G|       |  2015K  (7)| 00:53:57 |
    |  26 |                           NESTED LOOPS OUTER           |                   |    39M|    22G|       |  2015K  (7)| 00:53:57 |
    |  27 |                            NESTED LOOPS OUTER          |                   |    39M|    16G|       |  2015K  (7)| 00:53:57 |
    |* 28 |                             TABLE ACCESS FULL          | S_INVOICE         |    39M|     9G|       |  2015K  (7)| 00:53:57 |
    |  29 |                             TABLE ACCESS BY INDEX ROWID| S_PROJ            |     1 |   188 |       |     1   (0)| 00:00:01 |
    |* 30 |                              INDEX UNIQUE SCAN         | S_PROJ_P1         |     1 |       |       |     1   (0)| 00:00:01 |
    |  31 |                            TABLE ACCESS BY INDEX ROWID | S_PAYMENT_TERM    |     1 |   156 |       |     1   (0)| 00:00:01 |
    |* 32 |                             INDEX UNIQUE SCAN          | S_PAYMENT_TERM_P1 |     1 |       |       |     1   (0)| 00:00:01 |
    |  33 |                           TABLE ACCESS BY INDEX ROWID  | S_INSCLM_ELMNT    |     1 |    77 |       |     1   (0)| 00:00:01 |
    |* 34 |                            INDEX UNIQUE SCAN           | S_INSCLM_ELMNT_P1 |     1 |       |       |     1   (0)| 00:00:01 |
    |  35 |                          TABLE ACCESS BY INDEX ROWID   | S_INS_CLAIM       |     1 |   134 |       |     1   (0)| 00:00:01 |
    |* 36 |                           INDEX UNIQUE SCAN            | S_INS_CLAIM_P1    |     1 |       |       |     1   (0)| 00:00:01 |
    |  37 |                         TABLE ACCESS BY INDEX ROWID    | S_PERIOD          |     1 |    19 |       |     1   (0)| 00:00:01 |
    |* 38 |                          INDEX UNIQUE SCAN             | S_PERIOD_P1       |     1 |       |       |     1   (0)| 00:00:01 |
    |  39 |                        TABLE ACCESS BY INDEX ROWID     | S_USER            |     1 |    25 |       |     2   (0)| 00:00:01 |
    |* 40 |                         INDEX UNIQUE SCAN              | S_USER_U2         |     1 |       |       |     1   (0)| 00:00:01 |
    |  41 |                       TABLE ACCESS BY INDEX ROWID      | S_ORDER_TNTX      |     1 |    26 |       |     2   (0)| 00:00:01 |
    |* 42 |                        INDEX UNIQUE SCAN               | S_ORDER_TNTX_P1   |     1 |       |       |     1   (0)| 00:00:01 |
    |  43 |                      TABLE ACCESS BY INDEX ROWID       | S_DEPOSIT_TNT     |     1 |    45 |       |     1   (0)| 00:00:01 |
    |* 44 |                       INDEX UNIQUE SCAN                | S_DEPOSIT_TNT_P1  |     1 |       |       |     1   (0)| 00:00:01 |
    |  45 |                     TABLE ACCESS BY INDEX ROWID        | S_ORDER           |     1 |   101 |       |     2   (0)| 00:00:01 |
    |* 46 |                      INDEX UNIQUE SCAN                 | S_ORDER_P1        |     1 |       |       |     1   (0)| 00:00:01 |
    |  47 |                    TABLE ACCESS BY INDEX ROWID         | S_INVLOC          |     1 |    47 |       |     1   (0)| 00:00:01 |
    |* 48 |                     INDEX UNIQUE SCAN                  | S_INVLOC_P1       |     1 |       |       |     1   (0)| 00:00:01 |
    |  49 |                   TABLE ACCESS BY INDEX ROWID          | S_DOC_QUOTE       |     1 |    21 |       |     1   (0)| 00:00:01 |
    |* 50 |                    INDEX UNIQUE SCAN                   | S_DOC_QUOTE_P1    |     1 |       |       |     1   (0)| 00:00:01 |
    |* 51 |                  TABLE ACCESS FULL                     | S_ORG_EXT_TNTX    |     1 |    94 |       |     0   (0)| 00:00:01 |
    |  52 |                 TABLE ACCESS BY INDEX ROWID            | S_PTY_PAY_PRFL    |     1 |    74 |       |     1   (0)| 00:00:01 |
    |* 53 |                  INDEX UNIQUE SCAN                     | S_PTY_PAY_PRFL_P1 |     1 |       |       |     1   (0)| 00:00:01 |
    |  54 |                TABLE ACCESS BY INDEX ROWID             | S_ADDR_PER        |     1 |    84 |       |     2   (0)| 00:00:01 |
    |* 55 |                 INDEX UNIQUE SCAN                      | S_ADDR_PER_P1     |     1 |       |       |     1   (0)| 00:00:01 |
    |  56 |               TABLE ACCESS BY INDEX ROWID              | S_ADDR_PER        |     1 |    57 |       |     1   (0)| 00:00:01 |
    |* 57 |                INDEX UNIQUE SCAN                       | S_ADDR_PER_P1     |     1 |       |       |     1   (0)| 00:00:01 |
    |  58 |              TABLE ACCESS BY INDEX ROWID               | S_ORG_EXT         |     1 |    32 |       |     1   (0)| 00:00:01 |
    |* 59 |               INDEX UNIQUE SCAN                        | S_ORG_EXT_U3      |     1 |       |       |     1   (0)| 00:00:01 |
    |  60 |             TABLE ACCESS BY INDEX ROWID                | S_ORG_EXT         |     1 |    32 |       |     1   (0)| 00:00:01 |
    |* 61 |              INDEX UNIQUE SCAN                         | S_ORG_EXT_U3      |     1 |       |       |     1   (0)| 00:00:01 |
    |  62 |            TABLE ACCESS BY INDEX ROWID                 | S_ORG_EXT         |     1 |   256 |       |     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_ACCNT_POSTN     |     1 |    32 |       |     3   (0)| 00:00:01 |
    |* 65 |            INDEX RANGE SCAN                            | S_ACCNT_POSTN_U1  |     1 |       |       |     2   (0)| 00:00:01 |
    |  66 |          TABLE ACCESS BY INDEX ROWID                   | S_POSTN           |     1 |    21 |       |     1   (0)| 00:00:01 |
    |* 67 |           INDEX UNIQUE SCAN                            | S_POSTN_U2        |     1 |       |       |     1   (0)| 00:00:01 |
    |  68 |         TABLE ACCESS BY INDEX ROWID                    | S_USER            |     1 |    25 |       |     2   (0)| 00:00:01 |
    |* 69 |          INDEX UNIQUE SCAN                             | S_USER_U2         |     1 |       |       |     1   (0)| 00:00:01 |
    |  70 |        TABLE ACCESS BY INDEX ROWID                     | S_ORG_EXT         |     1 |    32 |       |     2   (0)| 00:00:01 |
    |* 71 |         INDEX UNIQUE SCAN                              | S_ORG_EXT_U3      |     1 |       |       |     1   (0)| 00:00:01 |
    |  72 |       TABLE ACCESS BY INDEX ROWID                      | S_ASSET           |     1 |    24 |       |     2   (0)| 00:00:01 |
    |* 73 |        INDEX UNIQUE SCAN                               | S_ASSET_P1        |     1 |       |       |     2   (0)| 00:00:01 |
    |  74 |      TABLE ACCESS BY INDEX ROWID                       | S_CON_ADDR        |     1 |    36 |       |     3   (0)| 00:00:01 |
    |* 75 |       INDEX RANGE SCAN                                 | S_CON_ADDR_U1     |     1 |       |       |     2   (0)| 00:00:01 |
    |* 76 |     INDEX UNIQUE SCAN                                  | S_PARTY_P1        |     1 |    12 |       |     1   (0)| 00:00:01 |
    |  77 |    TABLE ACCESS BY INDEX ROWID                         | S_ORG_EXT_X       |     1 |    37 |       |     2   (0)| 00:00:01 |
    |* 78 |     INDEX RANGE SCAN                                   | S_ORG_EXT_X_U1    |     1 |       |       |     2   (0)| 00:00:01 |
    Predicate Information (identified by operation id):
      28 - filter("T27"."INVC_TYPE_CD"=:1)
      30 - access("T27"."PROJ_ID"="T8"."ROW_ID"(+))
      32 - access("T27"."PAYMENT_TERM_ID"="T23"."ROW_ID"(+))
      34 - access("T27"."ELEMENT_ID"="T26"."ROW_ID"(+))
      36 - access("T26"."INSCLM_ID"="T14"."ROW_ID"(+))
      38 - access("T27"."BL_PERIOD_ID"="T20"."ROW_ID"(+))
      40 - access("T27"."LAST_UPD_BY"="T15"."PAR_ROW_ID"(+))
      42 - access("T27"."ORDER_ID"="T18"."ROW_ID"(+))
      44 - access("T18"."PR_DEPOSIT_ID"="T21"."ROW_ID"(+))
      46 - access("T27"."ORDER_ID"="T4"."ROW_ID"(+))
      48 - access("T4"."SRC_INVLOC_ID"="T3"."ROW_ID"(+))
      50 - access("T4"."QUOTE_ID"="T12"."ROW_ID"(+))
      51 - filter("T12"."BU_ID"="T19"."PAR_ROW_ID"(+))
      53 - access("T27"."PER_PAY_PRFL_ID"="T2"."ROW_ID"(+))
      55 - access("T27"."BL_ADDR_ID"="T1"."ROW_ID"(+))
      57 - access("T27"."BL_ADDR_ID"="T22"."ROW_ID"(+))
      59 - access("T8"."BU_ID"="T5"."PAR_ROW_ID"(+))
      61 - access("T27"."REMIT_ORG_EXT_ID"="T16"."PAR_ROW_ID"(+))
      63 - access("T27"."ACCNT_ID"="T25"."PAR_ROW_ID"(+))
      65 - access("T25"."ROW_ID"="T13"."OU_EXT_ID"(+) AND "T25"."PR_POSTN_ID"="T13"."POSITION_ID"(+))
      67 - access("T13"."POSITION_ID"="T6"."PAR_ROW_ID"(+))
      69 - access("T6"."PR_EMP_ID"="T11"."PAR_ROW_ID"(+))
      71 - access("T25"."BU_ID"="T10"."PAR_ROW_ID"(+))
      73 - access("T3"."CG_ASSSET_ID"="T17"."ROW_ID"(+))
      75 - access("T27"."BL_ADDR_ID"="T9"."ADDR_PER_ID"(+) AND "T27"."ACCNT_ID"="T9"."ACCNT_ID"(+))
           filter("T27"."ACCNT_ID"="T9"."ACCNT_ID"(+))
      76 - access("T13"."POSITION_ID"="T7"."ROW_ID"(+))
      78 - access("T27"."ACCNT_ID"="T24"."PAR_ROW_ID"(+))
    117 rows selected.SQL> EXPLAIN PLAN FOR
    2 SELECT * FROM SIEBEL.S_INVOICE T27 WHERE T27.INVC_TYPE_CD=:1;
    Explained.
    SQL> SELECT * FROM TABLE(DBMS_XPLAN.DISPLAY);
    PLAN_TABLE_OUTPUT
    Plan hash value: 1810797629
    | Id  | Operation         | Name      | Rows  | Bytes | Cost (%CPU)| Time     |
    |   0 | SELECT STATEMENT  |           |    39M|     9G|  2016K  (8)| 00:53:59 |
    |*  1 |  TABLE ACCESS FULL| S_INVOICE |    39M|     9G|  2016K  (8)| 00:53:59 |
    Predicate Information (identified by operation id):
       1 - filter("T27"."INVC_TYPE_CD"=:1)
    13 rows selected.Edited by: KODS on Feb 13, 2013 1:08 PM

    Dear Ivan,
    Please find the details below.
    select * from dba_indexes where index_name = 'S_INVOICE_U1';
    OWNER                          INDEX_NAME                     INDEX_TYPE                  TABLE_OWNER                    TABLE_NAME                     TABLE_TYPE  UNIQUENESS COMPRESSION PREFIX_LENGTH TABLESPACE_NAME                INI_TRANS MAX_TRANS INITIAL_EXTENT NEXT_EXTENT MIN_EXTENTS MAX_EXTENTS PCT_INCREASE PCT_THRESHOLD INCLUDE_COLUMN FREELISTS FREELIST_GROUPS PCT_FREE LOGGING BLEVEL LEAF_BLOCKS DISTINCT_KEYS AVG_LEAF_BLOCKS_PER_KEY AVG_DATA_BLOCKS_PER_KEY CLUSTERING_FACTOR STATUS   NUM_ROWS SAMPLE_SIZE LAST_ANALYZED DEGREE                                   INSTANCES                                PARTITIONED TEMPORARY GENERATED SECONDARY BUFFER_POOL USER_STATS DURATION        PCT_DIRECT_ACCESS ITYP_OWNER                     ITYP_NAME                      PARAMETERS                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               GLOBAL_STATS DOMIDX_STATUS DOMIDX_OPSTATUS FUNCIDX_STATUS JOIN_INDEX IOT_REDUNDANT_PKEY_ELIM DROPPED
    SIEBEL                         S_INVOICE_U1                   NORMAL                      SIEBEL                         S_INVOICE                      TABLE       UNIQUE     DISABLED                  CRMSBL_AEM_INDEX                       2       255          65536                       1  2147483645                                                                           10 NO           3      902796     196739390                       1                       1         125598294 VALID    196739390   196739390 10-02-13      1                                        1                                        NO          N         N         N         DEFAULT     NO                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  YES                                                       NO         NO                      NO     
    select * from dba_ind_columns where index_name = 'S_INVOICE_U1' order by column_position;
    INDEX_OWNER                    INDEX_NAME                     TABLE_OWNER                    TABLE_NAME                     COLUMN_NAME                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      COLUMN_POSITION COLUMN_LENGTH CHAR_LENGTH DESCEND
    SIEBEL                         S_INVOICE_U1                   SIEBEL                         S_INVOICE                      INVC_NUM                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       1           200          50 ASC    
    SIEBEL                         S_INVOICE_U1                   SIEBEL                         S_INVOICE                      INVC_TYPE_CD                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   2           120          30 ASC    
    SIEBEL                         S_INVOICE_U1                   SIEBEL                         S_INVOICE                      CONFLICT_ID                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    3            60          15 ASC    

  • Bulk Collect taking more time. Please suggest .

    I am working on oracle 11g
    I have one normal insert proc
    CREATE OR REPLACE PROCEDURE test2
    AS
         BEGIN
         INSERT INTO first_table
         (citiversion, financialcollectionid,
         dataitemid, dataitemvalue,
         unittypeid, financialinstanceid,
         VERSION, providerid, user_comment,
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         latestflag, finalflag, filename,
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         SELECT citiversion, financialcollectionid,
         dataitemid, dataitemvalue, unittypeid,
         new_fi, VERSION, providerid,
         user_comment, userid,
         insert_timestamp, latestflag,
         finalflag, filename, '', nmflag,1
         FROM secon_table
         WHERE financialinstanceid = 1
    AND changeflag = 'A'
    AND processed_flg = 'N';
         END test2;
    To impove performance i have normal insert into convert it to bulk collect :
    CREATE OR REPLACE PROCEDURE test
    AS
    BEGIN
         DECLARE
         CURSOR get_cat_fin_collection_data(n_instanceid NUMBER) IS
         SELECT citiversion,
         financialcollectionid,
         dataitemid,
         dataitemvalue,
         unittypeid,
         new_fi,
         VERSION,
         providerid,
         user_comment,
         userid,
         insert_timestamp,
         latestflag,
         finalflag,
         filename,
         nmflag,
                   1
         FROM secon_table
         WHERE financialinstanceid = n_instanceid
    AND changeflag = 'A'
    AND processed_flg = 'N';
         TYPE data_array IS TABLE OF get_cat_fin_collection_data%ROWTYPE;
         l_data data_array;
         BEGIN
         OPEN get_cat_fin_collection_data(1);
         LOOP
         FETCH get_cat_fin_collection_data BULK COLLECT
         INTO l_data limit 100;
         FORALL i IN 1 .. l_data.COUNT
         INSERT INTO first_table VALUES l_data (i);
    EXIT WHEN l_data.count =0;
         END LOOP;
         CLOSE get_cat_fin_collection_data;
         END;
         END test;
    But bulk collect is taking more time.
    below is the timings
    SQL> set timing on
    SQL> exec test
    PL/SQL procedure successfully completed
    Executed in 16.703 seconds
    SQL> exec test2
    PL/SQL procedure successfully completed
    Executed in 9.406 seconds
    SQL> rollback;
    Rollback complete
    Executed in 2.75 seconds
    SQL> exec test
    PL/SQL procedure successfully completed
    Executed in 16.266 seconds
    SQL> rollback;
    Rollback complete
    Executed in 2.812 seconds
    Normal insert :- 9.4 second
    Bulk insert:- 16.266 seconds
    I am processing 1 lakh rows.
    Can you please tell me the reason why bulk collect is taking more time. ? According to my knowledge it should take less time.
    Please suggect do i need to check any parameter?
    Please help.
    Edited by: 976747 on Feb 4, 2013 1:12 AM

    >
    Can you please tell me the reason why bulk collect is taking more time. ? According to my knowledge it should take less time.
    Please suggect do i need to check any parameter?In that case, your knowledge is flawed.
    Pure SQL is almost always faster than PL/SQL.
    If your Insert into Select is executing slow, then it is probably because the Select statement is taking long to execute. How many rows are being Selected and Inserted from your query?
    You might also consider tuning the Select statement. For more information on Posting a Tuning request, read {message:id=3292438} and post the relevant information.

  • Which statement is taking more time in a block?

    Hi,
    I have a plsql block with thousands of sql statements in it, line by line.
    My query is how can i know which particular sql statement is taking more time.
    Thanks,
    VInod

    910575 wrote:
    This is not the answer i expected.Having a 1000 SQLs statements in a single PL/SQL does not make any sense. Fact.
    This is not how one modularise software. And modularisation is a critically important fundamental.
    Each SQL means I/O. I/O is the single most expensive database operation. More I/O means slower performance.
    So why is a 1000+ SQL statements needed? Do these pull data into PL/SQL? If so, why? What does PL/SQL do with the data returned by these SQLs? Do the SQLs use bind variables? Can the SQLs be combined? What are the business requirements that need to be met?
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    Performance is a result of a sound design and proper implementation of this design into programming language code. It is not focusing on a single line of code and saying that is the problem and need to be fixed. The problem can be in the design. Can be in how that was written. And not in a single line of code.
    And seeing that you have 1000+ SQL statements in a single PL/SQL block - that IS an indication of a basic design flaw.

  • Source System Extraction taking more time

    Hi All,
    I Have an Issue, please help me out in this.
    We have two source systems in our process. One is working fine. We dont have any issue with that. But another source system taking more time to extract the data in the source system than usual. From few days only we are facing this problem. Record count is also normal. I am unable find root cause for this, please help me out regarding this issue.
    It is Full update. We are using Custom program to extract the data. It is running daily.
    Thanks in Advance.
    Regards,
    Suresh
    Edited by: sureshd on Jul 14, 2011 6:04 PM
    Edited by: sureshd on Jul 14, 2011 6:05 PM

    When a long running job is running in the source system side you can trace it through ST05. Simultaneously you can monitor the screen of SM50/SM66 to see what are the tables being accessed during the job.
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  • Transport released it taking more time

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    STOP  tp_getprots          TRP Q      20100423155240              BIPLAB       sapprd 20100423155222     
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    Shashi

  • INSTR() function is taking more time

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    Hi,
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    Fetch 0 0.00 0.00 0 0 0 0
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    ---------------------------------------- Waited ---------- ------------
    reliable message 1 0.00 0.00
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    Regards,

    user12121524 wrote:
    CREATE  INDEX ITEM_CATEGORIES_N2_BD9 ON ITEM_CATEGORIES_BD9(CATEGORY_SET_ID,
    SR_CATEGORY_ID,ORGANIZATION_ID,SR_INSTANCE_ID) PARALLEL  TABLESPACE MSCX
    STORAGE(  INITIAL 40960 NEXT 33554432 PCTINCREASE 0) PCTFREE 10 INITRANS 11
    MAXTRANS 255
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    Parse        1      0.00       0.00          0          3          0           0
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    Fetch        0      0.00       0.00          0          0          0           0
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    reliable message                                1        0.00          0.00
    enq: KO - fast object checkpoint                1        0.01          0.01
    PX Deq: Join ACK                                6        0.00          0.00
    PX Deq Credit: send blkd                      112        0.00          0.01
    PX qref latch                                   7        0.00          0.00
    PX Deq: Parse Reply                             3        0.00          0.00
    PX Deq: Execute Reply                         604        1.96        364.42
    log file sync                                   1        0.00          0.00
    PX Deq: Signal ACK                              1        0.00          0.00
    latch: session allocation                       2        0.00          0.00
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    Regards
    Jonathan Lewis
    http://jonathanlewis.wordpress.com
    http://www.jlcomp.demon.co.uk
    To post code, statspack/AWR report, execution plans or trace files, start and end the section with the tag {noformat}{noformat} (lowercase, curly brackets, no spaces) so that the text appears in fixed format.
    "Science is more than a body of knowledge; it is a way of thinking"
    Carl Sagan

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    Dear All,
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    Edited by: Prashanth Deshmukh on Mar 13, 2009 10:54 AM
    Edited by: Prashanth Deshmukh on Mar 13, 2009 10:55 AM

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