Performance issue with query

31%

Hi there are experts,

I have a problem with the performance with a simple SQL I thought cannot be tuned but I just wanted to check with the experts here. We conduct a query to get a connected people ID based on his email from a parts table that is enormous (from Millions of records). The query takes 30 seconds to return a value. Was wondering is there any way to optimize this

The query is

{code}

Select par.party_id

on the other parties, users

where

Lower (Party.email_address) = lower(:USER_EMAIL)

and party.system_reference = to_char (users.person_id)

and users.active_flag = 'yes ';

{code}

The emails are stored upstream and downstream, so the lower functions

Creates an index of function according to the only way?

Thank you

Ryan

ryansun wrote:

Select par.party_id

on the other parties, users

where

Lower (Party.email_address) = lower(:USER_EMAIL)

and party.system_reference = to_char (users.person_id)

and users.active_flag = 'yes ';

Three problems:

  1. par.party_id - 'au' does not exist, must say "party". This can be the actual code because it wouldn't immediately. It would be better to copy and paste the statement SELECT real.
  2. Lower (Party.email_address) - you want to use an index on that column, but you can't because you apply the LOWER function to it. You need an index based on a function, namely the LOWEST or case-insensitive sorting assistance. See linguistic sorting and string search
  3. Party.system_reference = to_char (users.person_id) - a time what you get the party line, you will then seek the line users according to person_id. here you have another function! There is a problem with your data model: you should have a column specific person_id_reference in PARTS with a foreign key constraint, using the same data type to avoid conversions. To work around the problem, try to_number (party.system_reference) = users.person_id. It will use the index on person_id (which I assume you have).

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    )

    and cn. STATUS ('FINISHED', 'CANCEL', 'TIMEOUT', 'ERROR')

    and CAST (cn. END_TS AS DATE) > = TO_DATE ('2014-05-06 00:00:00 ',' ' YYYY-MM-DD HH24:MI:SS)

    and CAST (cn. END_TS AS DATE) < = TO_DATE ('2014-05-06 23:59:59 ',' ' YYYY-MM-DD HH24:MI:SS)

    and cn.ID between the 20141999999999999 AND 20141800000000000

    and rq.ID between the 20141999999999999 AND 20141800000000000

    ) main_req

    On tsk.parent_context_id = main_req.context_id

    and tsk. DTYPE in ('ANALYSIS_TASK', 'DECISION_TASK')

    and tsk.ID between $$ LOW_ID1 AND $$ HIGH_ID1

    ) task

    We rb.task_id = task.ID

    and rb.ID between $$ LOW_ID1 AND $$ HIGH_ID1

    and RB. TYPE is not null

    and RB. TYPE IN

    (

    'bgc.dar.vap.resolution.advice ',' bgc.dar.e2etest.execution ',' bgc.tbf.repair.vap', ' bgc.dar.e2etest ',.

    'bgc.dar.e2etest.intermediate.execution ',' bgc.cbm ',' bgc.dar.e2etest.preparation', ' bgc.chc.polling '.

    )

    UNION

    SELECT

    RB.ID,

    RB. DTYPE,

    RB. Version

    RB. TYPE,

    RB. CREATION_TS,

    RB. TASK_ID,

    RB. Color

    RB. GLOBAL_RESULT,

    TASK. MAIN_REQ_TYPE

    Of

    PAS_RESULTBLOCK RB

    Join

    (

    Select tsk.ID, tsk. TYPE, main_req_type main_req.

    of tsk PAS_REQUEST

    Join

    (

    Select cn.id as context_id, rq. TYPE main_req_type

    of PAS_REQUEST rq

    Cn PAS_CONTEXT

    where rq.id = cn.request_id

    and rq. DTYPE = "MAINREQUEST."

    and rq. TYPE in

    (

    'bgc.dar.vap.resolution.advice ',' bgc.dar.e2etest.execution ',' bgc.tbf.repair.vap', ' bgc.dar.e2etest ',.

    'bgc.dar.e2etest.intermediate.execution ',' bgc.cbm ',' bgc.dar.e2etest.preparation', ' bgc.chc.polling '.

    )

    and cn. STATUS ('FINISHED', 'CANCEL', 'TIMEOUT', 'ERROR')

    and CAST (cn. END_TS AS DATE) > = TO_DATE ('2014-05-06 00:00:00 ',' ' YYYY-MM-DD HH24:MI:SS)

    and CAST (cn. END_TS AS DATE) < = TO_DATE ('2014-05-06 23:59:59 ',' ' YYYY-MM-DD HH24:MI:SS)

    and cn.ID between the 20141999999999999 AND 20141800000000000

    and rq.ID between the 20141999999999999 AND 20141800000000000

    ) main_req

    On tsk.parent_context_id = main_req.context_id

    and tsk. DTYPE in ('ANALYSIS_TASK', 'DECISION_TASK')

    and tsk.ID between $$ LOW_ID1 AND $$ HIGH_ID1

    ) task

    We rb.task_id = task.ID

    and rb.ID between $$ LOW_ID1 AND $$ HIGH_ID1

    and RB. TYPE is null

    -4th query

    SELECT
    RI.ID,
    UII DTYPE,
    UII Version
    UII RESULTBLOCK_ID,
    RI.NAME,
    UII VALUE,
    UII UNIT,
    UII Color
    UII LOB_ID,
    UII CREATION_TS,
    UII SEQUENCE,
    UII DETAILLEVEL,
    RES_BLK. MAIN_REQ_TYPE
    Of
    RI PAS_RESULTITEM
    Join
    (
    Select
    rb.ID, rb. TYPE rb_type, task. TYPE as the task_type, task. pas_resultblock rb main_req_type
    Join
    (
    Select tsk.ID, tsk. TYPE, main_req_type main_req.
    of tsk PAS_REQUEST
    Join
    (
    Select cn.id as context_id, rq. TYPE main_req_type
    of PAS_REQUEST rq
    Cn PAS_CONTEXT
    where rq.id = cn.request_id
    and rq. DTYPE = "MAINREQUEST."
    and rq. TYPE in
    (
    'bgc.dar.vap.resolution.advice ',' bgc.dar.e2etest.execution ',' bgc.tbf.repair.vap', ' bgc.dar.e2etest ',.
    'bgc.dar.e2etest.intermediate.execution ',' bgc.cbm ',' bgc.dar.e2etest.preparation', ' bgc.chc.polling '.
    )
    and cn. STATUS ('FINISHED', 'CANCEL', 'TIMEOUT', 'ERROR')
    and CAST (cn. END_TS AS DATE) > = TO_DATE ('2014-05-06 00:00:00 ',' ' YYYY-MM-DD HH24:MI:SS)
    and CAST (cn. END_TS AS DATE) < = TO_DATE ('2014-05-06 23:59:59 ',' ' YYYY-MM-DD HH24:MI:SS)
    and cn.ID between the 20141999999999999 AND 20141800000000000
    and rq.ID between the 20141999999999999 AND 20141800000000000
    ) main_req
    On tsk.parent_context_id = main_req.context_id
    and tsk. DTYPE in ('ANALYSIS_TASK', 'DECISION_TASK')
    and tsk.ID between the 20141999999999999 AND 20141800000000000
    ) task
    We rb.task_id = task.ID
    and rb.ID between the 20141999999999999 AND 20141800000000000
    and RB. TYPE IN
    (
    'bgc.dar.vap.resolution.advice ',' bgc.dar.e2etest.execution ',' bgc.tbf.repair.vap', ' bgc.dar.e2etest ',.
    'bgc.dar.e2etest.intermediate.execution ',' bgc.cbm ',' bgc.dar.e2etest.preparation', ' bgc.chc.polling '.
    )
    ) res_blk
    On ri.resultblock_id = res_blk.ID
    where IN RI.NAME
    (
    'bgc.dar.vap.resolution.advice ',' bgc.dar.e2etest.execution ',' bgc.tbf.repair.vap', ' bgc.dar.e2etest ',.
    'bgc.dar.e2etest.intermediate.execution ',' bgc.cbm ',' bgc.dar.e2etest.preparation', ' bgc.chc.polling '.
    )
    and RI.ID between the 20141999999999999 AND 20141800000000000
    and RI.NAME is not null
    UNION

    Select
    RI.ID,
    UII DTYPE,
    UII Version
    UII RESULTBLOCK_ID,
    RI.NAME,
    UII VALUE,
    UII UNIT,
    UII Color
    UII LOB_ID,
    UII CREATION_TS,
    UII SEQUENCE,
    UII DETAILLEVEL,
    RES_BLK. MAIN_REQ_TYPE
    of pas_resultitem ri
    Join
    (
    Select
    rb.ID, rb. TYPE rb_type, task. TYPE as the task_type, task. pas_resultblock rb main_req_type
    Join
    (
    Select tsk.ID, tsk. TYPE, main_req_type main_req.
    of tsk PAS_REQUEST
    Join
    (
    Select cn.id as context_id, rq. TYPE main_req_type
    of PAS_REQUEST rq
    Cn PAS_CONTEXT
    where rq.id = cn.request_id
    and rq. DTYPE = "MAINREQUEST."
    and rq. TYPE in
    (
    'bgc.dar.vap.resolution.advice ',' bgc.dar.e2etest.execution ',' bgc.tbf.repair.vap', ' bgc.dar.e2etest ',.
    'bgc.dar.e2etest.intermediate.execution ',' bgc.cbm ',' bgc.dar.e2etest.preparation', ' bgc.chc.polling '.
    )
    and cn. STATUS ('FINISHED', 'CANCEL', 'TIMEOUT', 'ERROR')
    and CAST (cn. END_TS AS DATE) > = TO_DATE ('2014-05-06 00:00:00 ',' ' YYYY-MM-DD HH24:MI:SS)
    and CAST (cn. END_TS AS DATE) < = TO_DATE ('2014-05-06 23:59:59 ',' ' YYYY-MM-DD HH24:MI:SS)
    and cn.ID between the 20141999999999999 AND 20141800000000000
    and rq.ID between the 20141999999999999 AND 20141800000000000
    ) main_req
    On tsk.parent_context_id = main_req.context_id
    and tsk. DTYPE in ('ANALYSIS_TASK', 'DECISION_TASK')
    and tsk.ID between the 20141999999999999 AND 20141800000000000
    ) task
    We rb.task_id = task.ID
    and rb.ID between the 20141999999999999 AND 20141800000000000
    ) res_blk
    On ri.resultblock_id = res_blk.ID
    where RI.ID between 20141800000000000 20141999999999999 AND
    and RI.NAME is null

    -REQUEST OF 5HT

    SELECT

    TSK.ID,

    TSK. Version

    TSK. DTYPE,

    TSK. CASE_ID,

    TSK. TYPE,

    TSK. CORRELATION_ID,

    TSK. INITIATOR,

    TSK. EXECUTOR,

    TSK. CATEGORY,

    TSK. PARENT_CONTEXT_ID,

    TSK. CREATION_TS,

    MAIN_REQ. MAIN_REQ_TYPE

    Of

    TSK PAS_REQUEST

    Join

    (

    Select cn.id as context_id, rq. TYPE main_req_type

    of PAS_REQUEST rq

    Cn PAS_CONTEXT

    where rq.id = cn.request_id

    and rq. DTYPE = "MAINREQUEST."

    and rq. TYPE in

    (

    'bgc.dar.vap.resolution.advice ',' bgc.dar.e2etest.execution ',' bgc.tbf.repair.vap', ' bgc.dar.e2etest ',.

    'bgc.dar.e2etest.intermediate.execution ',' bgc.cbm ',' bgc.dar.e2etest.preparation', ' bgc.chc.polling '.

    )

    and cn. STATUS ('FINISHED', 'CANCEL', 'TIMEOUT', 'ERROR')

    and CAST (cn. END_TS AS DATE) > = TO_DATE ('2014-05-06 00:00:00 ',' ' YYYY-MM-DD HH24:MI:SS)

    and CAST (cn. END_TS AS DATE) < = TO_DATE ('2014-05-06 23:59:59 ',' ' YYYY-MM-DD HH24:MI:SS)

    and cn.ID between the 20141999999999999 AND 20141800000000000

    and rq.ID between the 20141999999999999 AND 20141800000000000

    ) main_req

    On tsk.parent_context_id = main_req.context_id

    and tsk. DTYPE in ('ANALYSIS_TASK', 'DECISION_TASK')

    and tsk.ID between $$ LOW_ID1 AND $$ HIGH_ID1

    UNION

    Select

    MREQ.ID,

    MREQ. Version

    MREQ. DTYPE,

    MREQ. CASE_ID,

    MREQ. TYPE,

    MREQ. CORRELATION_ID,

    MREQ. INITIATOR,

    MREQ. EXECUTOR,

    MREQ. CATEGORY,

    MREQ. PARENT_CONTEXT_ID,

    MREQ. CREATION_TS,

    MREQ. TYPE

    of PAS_REQUEST mreq

    Cn PAS_CONTEXT

    where mreq.id = cn.request_id

    and mreq. DTYPE = "MAINREQUEST."

    and mreq. TYPE in

    (

    'bgc.dar.vap.resolution.advice ',' bgc.dar.e2etest.execution ',' bgc.tbf.repair.vap', ' bgc.dar.e2etest ',.

    'bgc.dar.e2etest.intermediate.execution ',' bgc.cbm ',' bgc.dar.e2etest.preparation', ' bgc.chc.polling '.

    )

    and cn. STATUS ('FINISHED', 'CANCEL', 'TIMEOUT', 'ERROR')

    and CAST (cn. END_TS AS DATE) > = TO_DATE ('2014-05-06 00:00:00 ',' ' YYYY-MM-DD HH24:MI:SS)

    and CAST (cn. END_TS AS DATE) < = TO_DATE ('2014-05-06 23:59:59 ',' ' YYYY-MM-DD HH24:MI:SS)

    and cn.ID between the 20141999999999999 AND 20141800000000000

    and mreq.ID between the 20141999999999999 AND 20141800000000000

    Tips will be may not be necessary (proportional to the cardinalities need)


    Select pc.id, pc.dtype, pc.version, pc.external_ref, pc.creation_ts, rq.type

    from pas_case

    as_request rq,

    CN pas_context

    where rq.case_id = pc.id

    and rq.id = cn.request_id

    and rq.dtype = 'MAINREQUEST. '

    and rq.type in ('bgc.dar.vap.resolution.advice ',' bgc.dar.e2etest.execution', ' bgc.tbf.repair.vap',

    'bgc.dar.e2etest ',' bgc.dar.e2etest.intermediate.execution', ' bgc.cbm ',.

    'bgc.dar.e2etest.preparation ','bgc.chc.polling '.

    )

    and cn.status in ('FINISHED', 'CANCEL', 'TIMEOUT', 'ERROR')

    and cn.creation_ts > = to_timestamp ('2014-05-06 00:00:00 ',' yyyy-mm-dd hh24:mi:ss')

    and cn.creation_ts<= to_timestamp('2014-05-06="" 23:59:59.999999','yyyy-mm-dd="">

    -2nd request

    with

    main_request as

    (select / * + materialize * /)

    CN.ID as context_id, rq.type as main_req_type

    of pas_request rq

    Join

    CN pas_context

    On rq.id = cn.request_id

    and rq.dtype = 'MAINREQUEST. '

    and rq.type in ('bgc.dar.vap.resolution.advice ',' bgc.dar.e2etest.execution', ' bgc.chc.polling',

    'bgc.tbf.repair.vap ',' bgc.dar.e2etest', ' bgc.dar.e2etest.intermediate.execution ',.

    'bgc.cbm ','bgc.dar.e2etest.preparation '.

    )

    and cn.status in ('FINISHED', 'CANCEL', 'TIMEOUT', 'ERROR')

    and cn.end_ts > = to_timestamp ('2014-05-06 00:00:00 ',' yyyy-mm-dd hh24:mi:ss')

    and cn.end_ts<= to_timestamp('2014-05-06="" 23:59:59.999999','yyyy-mm-dd="">

    and cn.id between 20141800000000000 and 20141999999999999

    and rq.id between 20141800000000000 and 20141999999999999

    )

    Select ra.id, ra.version, ra.request_id, ra.name, ra.value, ra.lob_id, ra.dtype, ra.creation_ts, task.main_req_type

    of pas_requestattribute ra

    Join

    (select tsk.id, tsk.type, main_req.main_req_type

    from pas_request tsk

    Join

    main_request main_req

    On tsk.parent_context_id = main_req.context_id

    and tsk.dtype in ('ANALYSIS_TASK', 'DECISION_TASK')

    and tsk.id between $$ low_id1 and $$ high_id1

    ) task

    We ra.request_id = task.id

    and ra.id between $$ low_id1 and $$ high_id1

    Union

    Select ra.id, ra.version, ra.request_id, ra.name, ra.value, ra.lob_id, ra.dtype, ra.creation_ts, main_req.type

    of pas_requestattribute ra

    Join

    main_request main_req

    On ra.request_id = main_req.context_id

    -3rd request

    Select rb.id, rb.dtype, rb.version, rb.type, rb.creation_ts, rb.task_id, rb.color, rb.global_result, task.main_req_type

    of pas_resultblock rb

    Join

    (select tsk.id, tsk.type, main_req.main_req_type

    from pas_request tsk

    Join

    (select cn.id as context_id, rq.type as main_req_type

    of pas_request rq

    Join

    CN pas_context

    On rq.id = cn.request_id

    and rq.dtype = 'MAINREQUEST. '

    and rq.type in ('bgc.dar.vap.resolution.advice ','bgc.dar.e2etest.execution ',

    'bgc.tbf.repair.vap ','bgc.dar.e2etest ',.

    'bgc.dar.e2etest.intermediate.execution ','bgc.cbm ',.

    'bgc.dar.e2etest.preparation ','bgc.chc.polling '.

    )

    and cn.status in ('FINISHED', 'CANCEL', 'TIMEOUT', 'ERROR')

    and cn.end_ts > = to_timestamp ('2014-05-06 00:00:00 ',' yyyy-mm-dd hh24:mi:ss')

    and cn.end_ts<= to_timestamp('2014-05-06="" 23:59:59.999999','yyyy-mm-dd="">

    and cn.id between 20141800000000000 and 20141999999999999

    and rq.id between 20141800000000000 and 20141999999999999

    ) main_req

    On tsk.parent_context_id = main_req.context_id

    and tsk.dtype in ('ANALYSIS_TASK', 'DECISION_TASK')

    and tsk.id between $$ low_id1 and $$ high_id1

    ) task

    We rb.task_id = task.id

    and rb.id between $$ low_id1 and $$ high_id1

    where the type is null

    or (type is not null

    type in ('bgc.dar.vap.resolution.advice ',' bgc.dar.e2etest.execution ', ' bgc.tbf.repair.vap',

    'bgc.dar.e2etest ',' bgc.dar.e2etest.intermediate.execution', ' bgc.cbm ',.

    'bgc.dar.e2etest.preparation ','bgc.chc.polling '.

    )

    )

    -4th query

    Select ri.id, ri.dtype, ri.version, ri.resultblock_id, ri.name, ri.value, ri.unit, ri.color, ri.lob_id.

    RI.creation_ts, RI. Sequence, RI. DetailLevel, res_blk.main_req_type

    of pas_resultitem ri

    Join

    (select rb.id, rb.type as rb_type, task.type as task_type, task.main_req_type)

    of pas_resultblock rb

    Join

    (select main_req_type, tsk.id, tsk.type, main_req.)

    from pas_request tsk

    Join

    (select cn.id as context_id, rq.type as main_req_type

    of pas_request rq

    Join

    CN pas_context

    On rq.id = cn.request_id

    and rq.dtype = 'MAINREQUEST. '

    and rq.type in ('bgc.dar.vap.resolution.advice ','bgc.dar.e2etest.execution ',

    'bgc.tbf.repair.vap ','bgc.dar.e2etest ',.

    'bgc.dar.e2etest.intermediate.execution ','bgc.cbm ',.

    'bgc.dar.e2etest.preparation ','bgc.chc.polling '.

    )

    and cn.status in ('FINISHED', 'CANCEL', 'TIMEOUT', 'ERROR')

    and cn.end_ts > = to_timestamp ('2014-05-06 00:00:00 ',' yyyy-mm-dd hh24:mi:ss')

    and cn.end_ts<= to_timestamp('2014-05-06="" 23:59:59.999999','yyyy-mm-dd="">

    and cn.id between 20141800000000000 and 20141999999999999

    and rq.id between 20141800000000000 and 20141999999999999

    ) main_req

    On tsk.parent_context_id = main_req.context_id

    and tsk.dtype in ('ANALYSIS_TASK', 'DECISION_TASK')

    and tsk.id between 20141800000000000 and 20141999999999999

    ) task

    We rb.task_id = task.id

    and rb.id between 20141800000000000 and 20141999999999999

    and rb.type in ('bgc.dar.vap.resolution.advice ',' bgc.dar.e2etest.execution', ' bgc.tbf.repair.vap',

    'bgc.dar.e2etest ',' bgc.dar.e2etest.intermediate.execution', ' bgc.cbm ',.

    'bgc.dar.e2etest.preparation ','bgc.chc.polling '.

    )

    ) res_blk

    On ri.resultblock_id = res_blk.id

    and ri.id between 20141800000000000 and 20141999999999999

    where ri.name is null

    or (ri.name is not null

    and ri.name in ('bgc.dar.vap.resolution.advice ',' bgc.dar.e2etest.execution', ' bgc.tbf.repair.vap',

    'bgc.dar.e2etest ',' bgc.dar.e2etest.intermediate.execution', ' bgc.cbm ',.

    'bgc.dar.e2etest.preparation ','bgc.chc.polling '.

    )

    )

    -5th application

    with

    main_request as

    (select / * + materialize * / )

    mreq.ID, mreq.version, mreq.dtype, mreq.case_id, mreq.type, mreq.correlation_id, mreq. Initiator, mreq. Executor,

    mreq. Category, mreq.parent_context_id, mreq.creation_ts, mreq.type

    of pas_request mreq

    Join

    CN pas_context

    On mreq.id = cn.request_id

    and mreq.dtype = 'MAINREQUEST. '

    and mreq.type in ('bgc.dar.vap.resolution.advice ',' bgc.dar.e2etest.execution', ' bgc.tbf.repair.vap',

    'bgc.dar.e2etest ',' bgc.dar.e2etest.intermediate.execution', ' bgc.cbm ',.

    'bgc.dar.e2etest.preparation ','bgc.chc.polling '.

    )

    and cn.status in ('FINISHED', 'CANCEL', 'TIMEOUT', 'ERROR')

    and cn.end_ts > = to_timestamp ('2014-05-06 00:00:00 ',' yyyy-mm-dd hh24:mi:ss')

    and cn.end_ts<= to_timestamp('2014-05-06="" 23:59:59.999999','yyyy-mm-dd="">

    and cn.id between 20141800000000000 and 20141999999999999

    and mreq.id between 20141800000000000 and 20141999999999999

    )

    Select tsk.id, tsk.version, tsk.dtype, tsk.case_id, tsk.type, tsk.correlation_id, tsk.initiator, tsk.executor,

    TSK. Category, tsk.parent_context_id, tsk.creation_ts, main_req.main_req_type

    from pas_request tsk

    Join

    main_request main_req

    On tsk.parent_context_id = main_req.id

    and tsk.dtype in ('ANALYSIS_TASK', 'DECISION_TASK')

    and tsk.id between $$ low_id1 and $$ high_id1

    Union

    SELECT id, version, dtype, case_id, type, correlation_id, initiator, executor,

    category, type parent_context_id, creation_ts

    of main_request

    Concerning

    Etbin

  • Performance issue with Sub query

    Hi all

    I have a requirement as there are two tables.

    Columns in the table T1

    -----------------------------------

    enter_time TIMESTAMP - partitioned column

    loc_num INDEX of index column-

    Table T2

    ---------------------------

    number of loc_num

    VARCHAR2 (20) type1

    VARCHAR2 (20) type2

    Table T1 is to have 30,00000 files

    Table T2 is to have 4 records

    There is no application between T1 and T2.

    Try to get one day date of the T2 based on the results of query sub.

    Query:

    SELECT * FROM T1

    WHEN trunc (enter_time) = July 22, 15 '

    and loc_num IN (select loc_num FROM T2 where = "XYZ" type1 and type2 = "PPP");

    I tried with the sup of CO-RELEATED query, but it takes more than 30 minutes.

    Do you have any idea to rewrite the query to make it faster in this scénarion.

    Thanks in advance.

    Kind regards

    Sanjib


    Hello

    Columns in the table T1

    -----------------------------------

    enter_time TIMESTAMP - partitioned column

    loc_num INDEX of index column-

    Table T2

    ---------------------------

    number of loc_num

    VARCHAR2 (20) type1

    VARCHAR2 (20) type2

    Table T1 is to have 30,00000 files

    Table T2 is to have 4 records

    Do you have any idea to rewrite the query to make it faster in this scénarion.

    Implementation plan would be useful here.

    Assuming that enter_time is indexed, you can remove this trunc function.

    select * from t1
where enter_time  >=  to_date('07/22/2015', 'mm/dd/yyyy')
  and enter_time  <   to_date('07/22/2015', 'mm/dd/yyyy') + 1
  and loc_num     in  (
    select loc_num from t2 where type1='XYZ' and type2='PPP'
  )

  • Performance issue with connection of a level query

    Hi I have a problem with connection by level in oracle.

    My table is:


    J_USER_CALENDAR
    --------------------------

    USER_NAME FROM_DATE TO TO_DATE COMMENTS
    -------------------------------------------------------------------------------------------------
    Comment1 5 November 09 uma Shankar 2 November 09
    Veera 11 November 09 13 November 09 Comment2
    Commnet3 17 December 09 uma Shankar 15 December 09
    Vinod 20 October 09 21 October 09 Comments4


    The table above is the calendar of user authorization.

    Now I need to view the users who are on leave between November 1, 2009 to November 30, 2009

    The output should look like:


    USER_NAME FROM_DATE COMMENTS
    ---------------------------------------------------------------------------------
    Comment1 2 November 09 uma Shankar
    Comment1 3 November 09 uma Shankar
    Comment1 4 November 09 uma Shankar
    Comment1 5 November 09 uma Shankar
    Comment2 Veera 11 November 09
    Comment2 Veera 12 November 09
    Comment2 Veera 13 November 09

    For this, I tried with the following query, but it takes too long to run.
    Select FROM_DATE, user_name, comments from (SELECT distinct FROM_DATE, user_name,
    Comments FROM (SELECT (LEVEL) + FROM_DATE-1 FROM_DATE, TO_DATE, FIRST_NAME |) » '|| LAST_NAME
    user_name, COMMENTS OF J_USER_CALENDAR
    where
    and J_USER_CALENDAR.IS_DELETED = 0
    CONNECT BY LEVEL < = TO_DATE - FROM_DATE + 1) has) where ("FROM_DATE = 1st November 2009 ' or FROM_DATE = November 30, 2009")
    or FROM_DATE between November 1, 2009 "-November 30, 2009") order of from_Date, lower (user_name)

    Please help me.

    Thanks in advance.

    Kind regards
    Phanikanth

    I have not tried to analyze the SQL statement.

    Here is a test set in place:

    CREATE TABLE T1(
  USERNAME VARCHAR2(30),
  FROM_DATE DATE,
  TO_DATE DATE,
  COMMENTS VARCHAR2(100));

INSERT INTO T1 VALUES ('Uma Shankar', '02-Nov-09','05-Nov-09','Comment1');
INSERT INTO T1 VALUES ('Veera','11-Nov-09','13-Nov-09','Comment2');
INSERT INTO T1 VALUES ('Uma Shankar','15-Dec-09','17-Dec-09','Commnet3');
INSERT INTO T1 VALUES ('Vinod','20-Oct-09','21-Oct-09','Comments4');
INSERT INTO T1 VALUES ('Mo','20-Oct-09','05-NOV-09','Comments4');

COMMIT;

    Note that I have included an additional line, when the person starts their vacation in the previous month and ends in November.

    You could approach the problem like this:
    Assume that you want to appear every day in a given month:

    SELECT
  TO_DATE('01-NOV-2009','DD-MON-YYYY')+(ROWNUM-1) MONTH_DAY
FROM
  DUAL
CONNECT BY
  LEVEL<=ADD_MONTHS(TO_DATE('01-NOV-2009','DD-MON-YYYY'),1)-TO_DATE('01-NOV-2009','DD-MON-YYYY');

    Note that the above attempts to calculate the number of days in the month of November - if we know that the month has a certain number of days, 30 for example, you can rewrite the CONNECT BY clause like this:

    CONNECT BY
  LEVEL<=30

    Now, he must pick up lines of interest to the table:

    SELECT
  *
FROM
  T1 T
WHERE
  (T.FROM_DATE BETWEEN TO_DATE('01-NOV-2009','DD-MON-YYYY') AND TO_DATE('30-NOV-2009','DD-MON-YYYY')
    OR T.TO_DATE BETWEEN TO_DATE('01-NOV-2009','DD-MON-YYYY') AND TO_DATE('30-NOV-2009','DD-MON-YYYY'));

USERNAME        FROM_DATE TO_DATE   COMMENTS
--------------- --------- --------- ----------
Uma Shankar     02-NOV-09 05-NOV-09 Comment1
Veera           11-NOV-09 13-NOV-09 Comment2
Mo              20-OCT-09 05-NOV-09 Comments4

    If join us then both sets of results, we have the following query:

    SELECT
  *
FROM
  T1 T,
  (SELECT
    TO_DATE('01-NOV-2009','DD-MON-YYYY')+(ROWNUM-1) MONTH_DAY
  FROM
    DUAL
  CONNECT BY
    LEVEL<=ADD_MONTHS(TO_DATE('01-NOV-2009','DD-MON-YYYY'),1)-TO_DATE('01-NOV-2009','DD-MON-YYYY')) V
WHERE
  (T.FROM_DATE BETWEEN TO_DATE('01-NOV-2009','DD-MON-YYYY') AND TO_DATE('30-NOV-2009','DD-MON-YYYY')
    OR T.TO_DATE BETWEEN TO_DATE('01-NOV-2009','DD-MON-YYYY') AND TO_DATE('30-NOV-2009','DD-MON-YYYY'))
  AND V.MONTH_DAY BETWEEN T.FROM_DATE AND T.TO_DATE
ORDER BY
  USERNAME,
  MONTH_DAY;

USERNAME        FROM_DATE TO_DATE   COMMENTS   MONTH_DAY
--------------- --------- --------- ---------- ---------
Mo              20-OCT-09 05-NOV-09 Comments4  01-NOV-09
Mo              20-OCT-09 05-NOV-09 Comments4  02-NOV-09
Mo              20-OCT-09 05-NOV-09 Comments4  03-NOV-09
Mo              20-OCT-09 05-NOV-09 Comments4  04-NOV-09
Mo              20-OCT-09 05-NOV-09 Comments4  05-NOV-09
Uma Shankar     02-NOV-09 05-NOV-09 Comment1   02-NOV-09
Uma Shankar     02-NOV-09 05-NOV-09 Comment1   03-NOV-09
Uma Shankar     02-NOV-09 05-NOV-09 Comment1   04-NOV-09
Uma Shankar     02-NOV-09 05-NOV-09 Comment1   05-NOV-09
Veera           11-NOV-09 13-NOV-09 Comment2   11-NOV-09
Veera           11-NOV-09 13-NOV-09 Comment2   12-NOV-09
Veera           11-NOV-09 13-NOV-09 Comment2   13-NOV-09

    Charles Hooper
    IT Manager/Oracle DBA
    K & M-making Machine, Inc.

  • Performance issues with dynamic action (PL/SQL)

    Hello!


    I have problems of perfomance with dynamic action that is triggered on click of a button.

    I have 5 drop-down lists to select the columns that users want filter, 5 drop-down lists to select an operation and 5 boxes of input values.

    After that, it has a filter button that submits just the page based on the selected filters.

    This part works fine, the data are filtered almost instantly.

    After that, I have 3 selectors 3 boxes where users put the values they wish to update the filtered rows and column

    There is a update button that calls the dynamic action (a procedure which is written below).

    It should be in a straight line, the issue of performance might be the decoding section, because I need to cover the case when the user wants to set a null (@), and when it won't update the 3 columns, but less (he leaves ").

    That's why P99_X_UC1 | ' = decode(' ||) P99_X_UV1 |', "«,» | P99_X_UC1 ||',''@'',null,'|| P99_X_UV1 |')

    However, when I click finally on the button update, my browser freezes and nothing happens on the table.

    Can anyone help me solve this problem and improve the speed of the update?

    Kind regards

    Ivan

    PS The procedure code is below:

    create or replace

    DWP PROCEDURE. PROC_UPD

    (P99_X_UC1 in VARCHAR2,

    P99_X_UV1 in VARCHAR2,

    P99_X_UC2 in VARCHAR2,

    P99_X_UV2 in VARCHAR2,

    P99_X_UC3 in VARCHAR2,

    P99_X_UV3 in VARCHAR2,

    P99_X_COL in VARCHAR2,

    P99_X_O in VARCHAR2,

    P99_X_V in VARCHAR2,

    P99_X_COL2 in VARCHAR2,

    P99_X_O2 in VARCHAR2,

    P99_X_V2 in VARCHAR2,

    P99_X_COL3 in VARCHAR2,

    P99_X_O3 in VARCHAR2,

    P99_X_V3 in VARCHAR2,

    P99_X_COL4 in VARCHAR2,

    P99_X_O4 in VARCHAR2,

    P99_X_V4 in VARCHAR2,

    P99_X_COL5 in VARCHAR2,

    P99_X_O5 in VARCHAR2,

    P99_X_V5 in VARCHAR2,

    P99_X_CD in VARCHAR2,

    P99_X_VD in VARCHAR2

    ) IS

    l_sql_stmt varchar2 (32600);

    nom_table_p varchar2 (30): = ' DWP. IZV_SLOG_DET';

    BEGIN

    l_sql_stmt: = "update". nom_table_p | 'set '.

    || P99_X_UC1 | ' = decode(' ||) P99_X_UV1 |', "«,» | P99_X_UC1 ||',''@'',null,'|| P99_X_UV1 |'),'

    || P99_X_UC2 | ' = decode(' ||) P99_X_UV2 |', "«,» | P99_X_UC2 ||',''@'',null,'|| P99_X_UV2 |'),'

    || P99_X_UC3 | ' = decode(' ||) P99_X_UV3 |', "«,» | P99_X_UC3 ||',''@'',null,'|| P99_X_UV3 |') where ' |

    P99_X_COL | » '|| P99_X_O | » ' || P99_X_V | «and» |

    P99_X_COL2 | » '|| P99_X_O2 | » ' || P99_X_V2 | «and» |

    P99_X_COL3 | » '|| P99_X_O3 | » ' || P99_X_V3 | «and» |

    P99_X_COL4 | » '|| P99_X_O4 | » ' || P99_X_V4 | «and» |

    P99_X_COL5 | » '|| P99_X_O5 | » ' || P99_X_V5 | «and» |

    P99_X_CD |       ' = '         || P99_X_VD;

    -dbms_output.put_line (l_sql_stmt);

    EXECUTE IMMEDIATE l_sql_stmt;

    END;

    Hello Ivan,.

    I don't think that the decoding is relevant performance. Perhaps the update is suspended because another transaction has changes that are uncommitted to any of the affected rows or where clause is not quite selective and has a huge amount of documents to update.

    In addition - and I may be wrong, because I only have a portion of your app - the code here looks like you've got a guy here huge sql injection vulnerability. Perhaps you should consider re - write your logic in the static sql. If this is not possible, you must make sure that the entered user contains only allowed values, for example by P99_X_On white list (i.e. to ensure that they contain only values known as 'is', ')<', ...),="" and="" by="" using="" dbms_assert.enquote_name/enquote_literal="" on="" the="" other="" p99_x_nnn="">

    Kind regards

    Christian

  • Performance issues with adapter Jena

    Hello

    I run the following query using Jena Adapater 11.2.0.3:
    SELECT * WHERE {
   :g :hasNode   ?node .
   OPTIONAL {
       ?node    :location   ?loc .
   } 
}
    I expect that this results in a single sdo_rdf_match+ query, but the log messages show that there is 1 sdo_rdf_match+ request for results of the *: g: hasNode? node * part and for each result of recoveries, another sdo_rdf_match+ query is issued.

    The master query:
    Final clause = SELECT ... FROM table(sdo_rdf_match('(<..#g> <..#hasNode> ?node)', sdo_rdf_models('model'), ...,'  ALLOW_DUP=T '))
    Internal queries issued to look like an option:
    Final clause = SELECT ... FROM table(sdo_rdf_match('(<..#MyNode1> <..#location> ?loc)', sdo_rdf_models('model'), ...,'  ALLOW_DUP=T '))
Final clause = SELECT ... FROM table(sdo_rdf_match('(<..#MyNode2> <..#location> ?loc)', sdo_rdf_models('model'), ...,'  ALLOW_DUP=T '))
(hundreds more...)
    It takes like 10 seconds to run, however, with a single SEM_MATCH+ call of the SPARQL query above, it takes less than a second.

    Am I missing any special installation to make it work as expected?

    Hello

    You must use the API of attachment and set a flag 'true' to indicate the use of the virtual model.

    String [] modelNames = {'model_B'};
    String [] rulebaseNames = {};

    Piece attached attachment = Attachment.createInstance (modelNames, rulebaseNames,
    InferenceMaintenanceMode.NO_UPDATE, QueryOptions.ALLOW_QUERY_VALID_AND_DUP);
    Chart GraphOracleSem = new GraphOracleSem (oracle, "model_A", room attached, true);

    Thank you

    Zhe Wu

  • Performance issue with the Update statement

    Oracle 10204

    I have a problem related to updaing one performance table.
    only 5000 lines should be updated.
    Hir are some details on the tables/M.V concerned:
    TABLE_NAME     LAST_ANALYZED          NUM_ROWS     SAMPLE_SIZE
PS_RF_INST_PROD     1/20/2010 1:14:22 AM     7194402          7194402
BL_TMP_INTRNT     1/27/2010 9:08:54 AM     885445          885445
NAP_INTERNET     1/25/2010 11:47:02 AM     7053990          560777
    I tried to run the update with two options:
    1. with the plan than oracle choose.
    2. with notes I added.
    In both cases I he collapsed after more than an hour.

    Can any one suggest how to speed it up?

    Below are for the two option tkprof.
    Please note that beside the defualt statistics on those tables i also gathered statistics on two column level as followed:
BEGIN
  SYS.DBMS_STATS.GATHER_TABLE_STATS (
      OwnName        => 'B'
     ,TabName        => 'BL_TMP_INTRNT'
    ,Estimate_Percent  => 100
    ,Degree            => 8
    ,Cascade           => TRUE
    ,No_Invalidate     => FALSE);
END;
/

exec dbms_stats.gather_table_stats('B' , 'BL_TMP_INTRNT', cascade=>TRUE, method_opt=>'for columns SERVICE_UID size 254');
exec dbms_stats.gather_table_stats('B' , 'BL_TMP_INTRNT', cascade=>TRUE, method_opt=>'for columns FIX_IP_USER size 254');
    Plan 1
    UPDATE BL_TMP_INTRNT A
   SET A.FIX_IP_USER =
          (SELECT C.PRODUCT_ID
             FROM NAP_INTERNET B, PS_RF_INST_PROD C
            WHERE B.INST_PROD_ID = A.SERVICE_UID
              AND B.SETID = 'SHARE'
              AND C.INST_PROD_ID = B.NAP_SURF_UID)
 WHERE A.TERM_DESC LIKE '%ip%'

call     count       cpu    elapsed       disk      query    current        rows
------- ------  -------- ---------- ---------- ---------- ----------  ----------
Parse        1      0.03       0.02          0          0          0           0
Execute      1   1166.64    4803.78   17989002   18792167        117           0
Fetch        0      0.00       0.00          0          0          0           0
------- ------  -------- ---------- ---------- ---------- ----------  ----------
total        2   1166.67    4803.81   17989002   18792167        117           0

Misses in library cache during parse: 1
Optimizer mode: FIRST_ROWS
Parsing user id: 13

Rows     Row Source Operation
-------  ---------------------------------------------------
      0  UPDATE  BL_TMP_INTRNT (cr=0 pr=0 pw=0 time=2 us)
     46   TABLE ACCESS FULL BL_TMP_INTRNT (cr=586400 pr=22228 pw=0 time=15333652 us)
     15   HASH JOIN  (cr=18170453 pr=17931639 pw=0 time=3991064192 us)
     46    MAT_VIEW ACCESS FULL NAP_INTERNET (cr=5659886 pr=5655436 pw=0 time=988162557 us)
329499624    MAT_VIEW ACCESS FULL PS_RF_INST_PROD (cr=12545734 pr=12311281 pw=0 time=2636471644 us)
    plan 2
    UPDATE BL_TMP_INTRNT A
   SET A.FIX_IP_USER =
          (SELECT /*+ index(b NAP_INTERNET_PK) index(c PS_RF_INST_PROD_PK)*/ C.PRODUCT_ID
             FROM NAP_INTERNET B, PS_RF_INST_PROD C
            WHERE B.INST_PROD_ID = A.SERVICE_UID
              AND B.SETID = 'SHARE'
              AND C.INST_PROD_ID = B.NAP_SURF_UID)
 WHERE A.TERM_DESC LIKE '%ip%'

call     count       cpu    elapsed       disk      query    current        rows
------- ------  -------- ---------- ---------- ---------- ----------  ----------
Parse        1      0.02       0.02          0          0          0           0
Execute      1   4645.25    4613.70      95783   39798095        735           0
Fetch        0      0.00       0.00          0          0          0           0
------- ------  -------- ---------- ---------- ---------- ----------  ----------
total        2   4645.27    4613.73      95783   39798095        735           0

Misses in library cache during parse: 1
Optimizer mode: FIRST_ROWS
Parsing user id: 13

Rows     Row Source Operation
-------  ---------------------------------------------------
      0  UPDATE  BL_TMP_INTRNT (cr=0 pr=0 pw=0 time=1 us)
    473   TABLE ACCESS FULL BL_TMP_INTRNT (cr=10461 pr=10399 pw=0 time=4629385 us)
    408   MAT_VIEW ACCESS BY INDEX ROWID PS_RF_INST_PROD (cr=39776109 pr=85381 pw=0 time=4605125045 us)
   1350    NESTED LOOPS  (cr=39784584 pr=84974 pw=0 time=4601874262 us)
    470     MAT_VIEW ACCESS BY INDEX ROWID NAP_INTERNET (cr=23569112 pr=50472 pw=0 time=2544364336 us)
    470      INDEX FULL SCAN NAP_INTERNET_PK (cr=23568642 pr=50005 pw=0 time=2540300981 us)(object id 11027362)
    408     INDEX FULL SCAN PS_RF_INST_PROD_PK (cr=16215472 pr=34502 pw=0 time=2057500175 us)(object id 10980137)


Elapsed times include waiting on following events:
  Event waited on                             Times   Max. Wait  Total Waited
  ----------------------------------------   Waited  ----------  ------------
  db file scattered read                       1300        0.50          4.27
  db file sequential read                     85707        0.51         29.88
  latch: cache buffers chains                     1        0.00          0.00
  log file sync                                   1        0.00          0.00
  SQL*Net break/reset to client                   1        0.00          0.00
  SQL*Net message to client                       1        0.00          0.00
  SQL*Net message from client                     1       14.73         14.73
********************************************************************************

    The problem in your update statement that is the query in your set clause is executed many times that there are lines in BL_TMP_INTRNT of 'intellectual property' in their column of term_desc. You mentioned there are about 5000, then the query joining NAP_INTERNET with PS_RF_ISNT_PROD is begun 5000 times.
    The trick is to join only once, be updated using join views - provided that it is preserved - key or by using the merge statement.

    Here is an example:

    SQL> create table bl_tmp_intrnt (fix_ip_user,service_uid,term_desc)
  2  as
  3   select level
  4        , level
  5        , 'aipa'
  6     from dual
  7  connect by level <= 5000
  8  /

Tabel is aangemaakt.

SQL> create table nap_internet (inst_prod_id,setid,nap_surf_uid)
  2  as
  3   select level
  4        , 'SHARE'
  5        , level
  6     from dual
  7  connect by level <= 10
  8  /

Tabel is aangemaakt.

SQL> create table ps_rf_inst_prod (product_id,inst_prod_id)
  2  as
  3   select level
  4        , level
  5     from dual
  6  connect by level <= 10
  7  /

Tabel is aangemaakt.

SQL> exec dbms_stats.gather_table_stats(user,'bl_tmp_intrnt')

PL/SQL-procedure is geslaagd.

SQL> exec dbms_stats.gather_table_stats(user,'nap_internet')

PL/SQL-procedure is geslaagd.

SQL> exec dbms_stats.gather_table_stats(user,'ps_rf_inst_prod')

PL/SQL-procedure is geslaagd.

SQL> set serveroutput off
SQL> update ( select a.fix_ip_user
  2                , c.product_id
  3             from bl_tmp_intrnt a
  4                , nap_internet b
  5                , ps_rf_inst_prod c
  6            where a.term_desc like '%ip%'
  7              and a.service_uid = b.inst_prod_id
  8              and b.setid = 'SHARE'
  9              and b.nap_surf_uid = c.inst_prod_id
 10         )
 11     set fix_ip_user = product_id
 12  /
   set fix_ip_user = product_id
       *
FOUT in regel 11:
.ORA-01779: cannot modify a column which maps to a non key-preserved table

    Join is one key kept in the case of b.inst_prod_id and c.inst_prod_id are unique. Please refer to the documentation for more information here: http://download.oracle.com/docs/cd/B19306_01/server.102/b14231/views.htm#sthref3055

    SQL> alter table nap_internet add primary key (inst_prod_id)
  2  /

Tabel is gewijzigd.

SQL> alter table ps_rf_inst_prod add primary key (inst_prod_id)
  2  /

Tabel is gewijzigd.

SQL> update /*+ gather_plan_statistics */
  2         ( select a.fix_ip_user
  3                , c.product_id
  4             from bl_tmp_intrnt a
  5                , nap_internet b
  6                , ps_rf_inst_prod c
  7            where a.term_desc like '%ip%'
  8              and a.service_uid = b.inst_prod_id
  9              and b.setid = 'SHARE'
 10              and b.nap_surf_uid = c.inst_prod_id
 11         )
 12     set fix_ip_user = product_id
 13  /

10 rijen zijn bijgewerkt.

SQL> select * from table(dbms_xplan.display_cursor(null,null,'allstats last'))
  2  /

PLAN_TABLE_OUTPUT
--------------------------------------------------------------------------------------------------------------------------------------
SQL_ID  c7nqbxwzpyq5p, child number 0
-------------------------------------
update /*+ gather_plan_statistics */        ( select a.fix_ip_user               , c.product_id            from bl_tmp_intrnt
a               , nap_internet b               , ps_rf_inst_prod c           where a.term_desc like '%ip%'             and
a.service_uid = b.inst_prod_id             and b.setid = 'SHARE'             and b.nap_surf_uid = c.inst_prod_id        )
set fix_ip_user = product_id

Plan hash value: 1745632149

---------------------------------------------------------------------------------------------------------------------------------------
| Id  | Operation                      | Name            | Starts | E-Rows | A-Rows |   A-Time   | Buffers |  OMem |  1Mem | Used-Mem |
---------------------------------------------------------------------------------------------------------------------------------------
|   1 |  UPDATE                        | BL_TMP_INTRNT   |      1 |        |      0 |00:00:00.01 |      32 |       |       |          |
|   2 |   NESTED LOOPS                 |                 |      1 |     10 |     10 |00:00:00.01 |      21 |       |       |          |
|   3 |    MERGE JOIN                  |                 |      1 |     10 |     10 |00:00:00.01 |       9 |       |       |          |
|*  4 |     TABLE ACCESS BY INDEX ROWID| NAP_INTERNET    |      1 |     10 |     10 |00:00:00.01 |       2 |       |       |          |
|   5 |      INDEX FULL SCAN           | SYS_C00132995   |      1 |     10 |     10 |00:00:00.01 |       1 |       |       |          |
|*  6 |     SORT JOIN                  |                 |     10 |    250 |     10 |00:00:00.01 |       7 |   267K|   256K|  237K (0)|
|*  7 |      TABLE ACCESS FULL         | BL_TMP_INTRNT   |      1 |    250 |   5000 |00:00:00.01 |       7 |       |       |          |
|   8 |    TABLE ACCESS BY INDEX ROWID | PS_RF_INST_PROD |     10 |      1 |     10 |00:00:00.01 |      12 |       |       |          |
|*  9 |     INDEX UNIQUE SCAN          | SYS_C00132996   |     10 |      1 |     10 |00:00:00.01 |       2 |       |       |          |
---------------------------------------------------------------------------------------------------------------------------------------

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

   4 - filter("B"."SETID"='SHARE')
   6 - access("A"."SERVICE_UID"="B"."INST_PROD_ID")
       filter("A"."SERVICE_UID"="B"."INST_PROD_ID")
   7 - filter("A"."TERM_DESC" LIKE '%ip%')
   9 - access("B"."NAP_SURF_UID"="C"."INST_PROD_ID")

32 rijen zijn geselecteerd.

SQL> rollback
  2  /

Rollback is voltooid.

    And it's your current statement. Please note the number of 5000 in the column begins:

    SQL> UPDATE /*+ gather_plan_statistics */ BL_TMP_INTRNT A
  2     SET A.FIX_IP_USER =
  3            (SELECT C.PRODUCT_ID
  4               FROM NAP_INTERNET B, PS_RF_INST_PROD C
  5              WHERE B.INST_PROD_ID = A.SERVICE_UID
  6                AND B.SETID = 'SHARE'
  7                AND C.INST_PROD_ID = B.NAP_SURF_UID)
  8   WHERE A.TERM_DESC LIKE '%ip%'
  9  /

5000 rijen zijn bijgewerkt.

SQL> select * from table(dbms_xplan.display_cursor(null,null,'allstats last'))
  2  /

PLAN_TABLE_OUTPUT
--------------------------------------------------------------------------------------------------------------------------------------
SQL_ID  f1qtnpa0nmbh8, child number 0
-------------------------------------
UPDATE /*+ gather_plan_statistics */ BL_TMP_INTRNT A    SET A.FIX_IP_USER =           (SELECT
C.PRODUCT_ID              FROM NAP_INTERNET B, PS_RF_INST_PROD C             WHERE B.INST_PROD_ID
= A.SERVICE_UID               AND B.SETID = 'SHARE'               AND C.INST_PROD_ID =
B.NAP_SURF_UID)  WHERE A.TERM_DESC LIKE '%ip%'

Plan hash value: 3190675455

-----------------------------------------------------------------------------------------------------------
| Id  | Operation                     | Name            | Starts | E-Rows | A-Rows |   A-Time   | Buffers |
-----------------------------------------------------------------------------------------------------------
|   1 |  UPDATE                       | BL_TMP_INTRNT   |      1 |        |      0 |00:00:00.10 |    5076 |
|*  2 |   TABLE ACCESS FULL           | BL_TMP_INTRNT   |      1 |    250 |   5000 |00:00:00.01 |       7 |
|   3 |   NESTED LOOPS                |                 |   5000 |      1 |     10 |00:00:00.02 |      24 |
|*  4 |    TABLE ACCESS BY INDEX ROWID| NAP_INTERNET    |   5000 |      1 |     10 |00:00:00.01 |      12 |
|*  5 |     INDEX UNIQUE SCAN         | SYS_C00132995   |   5000 |      1 |     10 |00:00:00.01 |       2 |
|   6 |    TABLE ACCESS BY INDEX ROWID| PS_RF_INST_PROD |     10 |     10 |     10 |00:00:00.01 |      12 |
|*  7 |     INDEX UNIQUE SCAN         | SYS_C00132996   |     10 |      1 |     10 |00:00:00.01 |       2 |
-----------------------------------------------------------------------------------------------------------

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

   2 - filter("A"."TERM_DESC" LIKE '%ip%')
   4 - filter("B"."SETID"='SHARE')
   5 - access("B"."INST_PROD_ID"=:B1)
   7 - access("C"."INST_PROD_ID"="B"."NAP_SURF_UID")

29 rijen zijn geselecteerd.

    Kind regards
    Rob.

  • Performance issue with the point of SHUTTLE with 2000 records

    Hello

    I have a FORM with a SHUTTLE item based on a LOV which is to have about 2000 records.
    When I submit this page (CREATE/APPLY the CHANGES), ask it something about 3-4 seconds to submit.

    When I delete the SHUTTLE of the form point, the sending process is very fast... say 1 sec...
    so it takes more time when we have a SHUTTLE point with 2000 records.

    So, how do I fix this perfomance?... any suggestions?


    Thank you
    Deepak

    Deepak,

    When you have more number of records to select the list, Select Multi, elements of the shuttle, then it will take more time to render the page. In most cases, you cannot remove it.

    Check the performance of the underlying query LOV. If it is a complex query, no doubt, you can see his plan to explain and you can enter.

    Alternatively, you can move this deadline to the popup page. I want to say, create a custom page to pop up and provide multi select such items from the shuttle on this page. Allow the user to select the point of shuttle options in the popup page and return values selected to main page shape :)

    See you soon,.
    Hari

  • Performance issue with 2.5 "HDD + NAND MQ01ABD100H

    Hello everyone.

    I use this car for several days.
    The problem is that player has lower estimate in the Windows system assessment tool then my old drive (WD500BEVT).

    I run the benchmark in HDTune Pro and I get very bad result in n of the speed to the beginning of the trial. Overall performance is also much lower then I read in the comments.

    Can you help me with this problem?
    I am running Windows 7 64-bit teacher, all the drivers are installed, my laptop is A.c.e.r 5820TG (i5 - 450 M, 4 GB of DDR3 memory, ATi HD5650). Only a few days ago, is original and SP1.

    Thans for all help.

    I am attaching a link to a screenshot
    http://imagizer.imageshack.us/v2/640x480q90/585/j5nl.PNG

    Hello

    According to the [page specifications MQ01ABDxxxH | http://storage.toshiba.eu/cms/en/hdd/solid_state_hybrid_drives/product_detail.jsp?productid=525], the HYBRID 2.5 INCH SATA DRIVE supports SATA III

    For best performance, your laptop should also supports the SATA III HARD disk controller.
    In the event that your laptop does not support SATA III, performance may be lower due to the limitation of HARD disk controller.

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