need help my transcript of analysis! Help

Im trying to scan my transcript in my computer, but when I push scan power button blinks and nothing else happens. no error message on the computer or anything. ?

I would check if the scanner is properly connected to your PC, and may appear in the list of connected devices. I'd also look in the manual of the scanner, it could have some explanation about what the flashing means in reality.

Tags: Windows

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    Active scripting: allowed
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    Other data-->
    Office details: {E9827CAB-B22C-4676-8C2F-F77EDCD000E6}1.9.0027.06.1.7601.2.00010100.1.0.048x 32*-*-*-*-PW48700371-177-0000061-856435S-1-5-21-439732754-3583098255-2330885285HP-PavilionFK869AA-Y2K A6640DPhoenix Technologies, LTD5.2220090507000000.000000 + 000A5E63007018400FA04090409China Standard Time(GMT+08:00)03HPQOEMSLIC-CPC109

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    Windows Activation Technologies-->
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    HrOnline: n/a
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    Diagnostic report (1.9.0027.0):
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    HrOnline: 0xC004C4A2
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    Pressing the F10 key at startup bothers me nowhere. Ditto the key F11.

    I don't like hard disk; This is the data (files, documents, images, etc.) that I want to.
    I contacted HP to order recovery disks, but they are no longer available for my computer.

    Any suggestions would be greatly appreciated!
    Jon

    Update...

    I found a site that offers the following:

    http://www.computersurgeons.com/p-13442-recovery-kit-435422-001-for-HP-model-number-dv6108nr.aspx

    Recovery Kit 435422-001 for HP model dv6108nr number

  • I need help for query AVG

    I need help with a simple query in an ORACLE database. I tried a lot of things that I found on the internet, but none of them worked for me.

    The following query retrieves four lines:

    SELECT sampled_date AS VALUE1, VALUE2 AS result, 0 as value3

    Of asw_lab

    WHERE template_result = 'A' AND analysis = 'B' AND ROWNUM < 5

    ORDER BY sampled_date DESC;

    I would like to calculate a moving average of the last four values with the date of the sample of the last line.

    For example, I have this result for the query above:

    Value1 value2 value3

    01/04/14-16:00 1 0

    01/04/14 15:00 2 0

    01/04/14 14:00 3 0

    01/04/14 13:00 4 0

    I want to extract the below my average/query calculation result:

    Value1 value2 value3

    01/04/14-16:00 2.5 0

    Can you help me create a request to that effect?

    Thank you

    Maybe it's

    Select max (VALUE1) VALUE1, VALUE2 avg (VALUE2), avg (VALUE3) value3

    Of

    (

    SELECT sampled_date AS VALUE1, VALUE2 AS result, 0 as value3

    Of asw_lab

    WHERE template_result = 'A' AND analysis = 'B' AND ROWNUM<>

    )

  • Need help to set a DELETE statement.

    I have a table that contains the records of files. Files come in a bouquet each week. So, we need to delete records from a table to the corresponding fields and load the table with up-to-date data.

    In doing so, the DELETE statement takes a long time. Need help with this setting.

    Here are the details.

    (1) total number of records in the table: 23 million records.
    (2) approximate records deleted each time: 500 K to 1.5 million.
    (3) table is partitioned on a PERIOD key. That is, each partition will have the data for a given period.
    (4) table is not indexed
    (5) removal occurs on a combination of 2 fields (PERIOD + BATCH).

    Here is the query and the plan:

    ===========================================================

    SQL > EXPLAIN PLAN SET STATEMENT_ID = 'TSH' FOR
    2 REMOVE / * + PARALLEL(DETAIL_UNKNOWN,10) * / u DETAIL_UNKNOWN
    3 WHERE u.FLBATCHID = 'PCAFRINTERMAR1105' AND u.N_PER6 = 201214
    4;

    He explained.

    SQL > SET LINESIZE 130
    SQL > SELECT * FROM TABLE (DBMS_XPLAN. DISPLAY ('PLAN_TABLE', 'TSH', 'ALL'));

    PLAN_TABLE_OUTPUT
    ----------------------------------------------------------------------------------------------------
    Hash value of plan: 2400300449

    ----------------------------------------------------------------------------------------------------
    | ID | Operation | Name | Lines | Bytes | Cost (% CPU). Time | Pstart. Pstop |
    ----------------------------------------------------------------------------------------------------
    | 0 | DELETE STATEMENT. 596K | 12 M | 838 (9) | 00:00:12 |
    | 1. REMOVE | DETAIL_UNKNOWN |
    | 2. SIMPLE HASH PARTITION | 596K | 12 M | 838 (9) | 00:00:12 | 6. 6.
    |* 3 | TABLE ACCESS FULL | DETAIL_UNKNOWN | 596K | 12 M | 838 (9) | 00:00:12 |
    ----------------------------------------------------------------------------------------------------


    PLAN_TABLE_OUTPUT
    ----------------------------------------------------------------------------------------------------
    Name of the query block / Alias object (identified by the operation identity card):
    -------------------------------------------------------------

    1 LED$ 1
    3 LED$ 1 / U@DEL$1

    Information of predicates (identified by the operation identity card):
    ---------------------------------------------------

    3 - filter("U".") FLBATCHID '= 'PCAFRINTERMAR1105' AND 'U'." N_PER6 "= 201214)


    PLAN_TABLE_OUTPUT
    ----------------------------------------------------------------------------------------------------
    Projection of the column information (identified by the operation identity card):
    -----------------------------------------------------------

    2 - (cmp = 2, 3) "U". ROWID [ROWID, 10], "U". "N_PER6" [NO.22], 'U' "." " FLBATCHID ' [VARCHAR2, 20].
    3 - « U ». ROWID [ROWID, 10], "U". "N_PER6" [NO.22], 'U' "." " FLBATCHID ' [VARCHAR2, 20].

    27 selected lines.

    ===========================================================

    Need your suggestions on how the query / table can be tuned.

    Hi Anand,

    I wanted to check why your tkprof Watch report two executions of the statement:

    call     count       cpu    elapsed       disk      query    current        rows
------- ------  -------- ---------- ---------- ---------- ----------  ----------
Execute      2   2315.71    2480.17          0       3351     624489      611765

    In fact, it there was only a single execution of the DELETE statement. The trace file begins with a call EXEC of any statement without call analysis

    *** TRACE DUMP CONTINUED FROM FILE XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX_ora_241708.trc ***

EXEC #1:c=20000,e=13996,p=0,cr=0,cu=0,mis=0,r=0,dep=0,og=0,tim=32472879711702
=====================
PARSING IN CURSOR #2 len=68 dep=0 uid=72 oct=42 lid=72 tim=32472883567994 hv=740818757 ad='0'
...

    TKProf aggregates this EXEC call with call EXEC of the DELETE statement because they have the same location of cursor (#1), he thinks it was the same cursor.

    PARSING IN CURSOR #1 len=93 dep=0 uid=72 oct=7 lid=72 tim=32472889974030 hv=1242910589 ad='e5979d80'
DELETE from detail_unknown where n_per6 = 201214 and FLBATCHID = 'PCAFRINTERMAR1105'
END OF STMT
PARSE #1:c=0,e=11462,p=0,cr=0,cu=0,mis=1,r=0,dep=0,og=1,tim=32472889974024
...
EXEC #1:c=2315710000,e=2480213492,p=0,cr=3691,cu=624489,mis=0,r=611765,dep=0,og=1,tim=32475370187626

    So, the question about two executions is closed - there was only a single run.

    The performance - 2315,71 seconds of time processor is absolutely huge for such amount of work. It looks like a bug.

    First, I propose to check the time without compression. If your environment allows this kind of testing try to decompress the partition and re - run on unpacking data DELETION.
    10.2 find the name of the partition

    select partition_name
  from dba_tab_partitions
 where table_name = 'DETAIL_UNKNOWN'
   and partition_position = 6

    After that

    alter table DETAIL_UNKNOWN modify partition  nocompress;
alter table DETAIL_UNKNOWN move partition ;

    and run again the button DELETE.

    What is the operating system on the server?

  • Need help in the interpretation of a file of Trace 10053

    Hello

    I need help to interpret an event 10053 (optimizer Trace) trace file

    Everything that happens on AIX with Oracle 11.2.0.2

    It is not obvious to me why the optimizer chooses the path with the highest cost.
    But I found the following quote in the trace file, which is probably the answer, but I did not understand what circumstances allow the optimizer to say such things:


    New AP rejected: guess used for New, but not for the current best

    So, it was the short story, now the witch for a long time one quote of the trace file

    Here the query directly in the trace file. I can't modify this query, even a hint is not feasible, so I need to understand the incorrect path to avoid it.
    **************************
Automatic degree of parallelism (ADOP)
**************************
Automatic degree of parallelism is disabled: Parameter.

PM: Considering predicate move-around in query block SEL$1 (#0)
**************************
Predicate Move-Around (PM)
**************************
OPTIMIZER INFORMATION

******************************************
----- Current SQL Statement for this session (sql_id=0zdbb3hzztdaf) -----
explain plan for
SELECT
  aktl_aend,
  aktl_akgrnr,
  aktl_akgrpos,
  aktl_akh,
  aktl_alterart,
  aktl_anz_in,
  aktl_anz_nach,
  aktl_artrab,
  aktl_beg,
  aktl_belart1,
  aktl_belart2,
  aktl_belnr1,
  aktl_belnr2,
  aktl_bestkz,
  aktl_bestmg1,
  aktl_bestmg1_alt,
  aktl_bestmg2,
  aktl_bestmg2_alt,
  aktl_eindat,
  aktl_ek,
  aktl_ekdat1,
  aktl_ekdat2,
  aktl_ekkopie,
  aktl_ekn,
  aktl_eknorm,
  aktl_ek_alt,
  aktl_end,
  aktl_fbdarst,
  aktl_fbd_alt,
  aktl_fbseite,
  aktl_fbs_alt,
  aktl_fbtxt,
  aktl_info_werbeabt,
  aktl_info_wgm,
  aktl_kaek,
  aktl_kaekn,
  aktl_kaek_alt,
  aktl_kombiart,
  aktl_ldat1,
  aktl_ldat2,
  aktl_lf,
  aktl_lf_alt,
  aktl_mgfk,
  aktl_mg_p,
  aktl_mg_r,
  aktl_mindmg,
  aktl_neudat,
  aktl_nnek,
  aktl_nnekn,
  aktl_pabw,
  aktl_pic,
  aktl_plan_menge,
  aktl_plan_menge_hela,
  aktl_plan_stueck,
  aktl_plan_stueck_hela,
  aktl_plan_woche,
  aktl_plan_woche_hela,
  aktl_rdat,
  aktl_ro_p,
  aktl_ro_r,
  aktl_seite,
  aktl_sigkz,
  aktl_sokoeur,
  aktl_sokoeur_alt,
  aktl_sokopr,
  aktl_sokopr_alt,
  aktl_sort_vorab,
  aktl_stat,
  aktl_text,
  aktl_txtbau,
  aktl_txtbaukz,
  aktl_um_p,
  aktl_um_r,
  aktl_user,
  aktl_vk,
  aktl_vkn,
  aktl_vk_alt,
  aktl_zen,
  akt_at_at_no,
  akt_at_at_se_se_ag_ag_no,
  akt_at_at_se_se_ag_ag_wg,
  akt_at_at_se_se_no,
  ROWID,
  rownum,
  uid,
  USER,
  vid
FROM
  akt
WHERE
  (
    aktl_stat <> :"SYS_B_0"
  )
AND
  (
    aktl_zen = :"SYS_B_1"
  )
AND
  (
    aktl_akh BETWEEN :"SYS_B_2" AND :"SYS_B_3"
  AND
    (
      (
        akt_at_at_se_se_ag_ag_wg   = :"SYS_B_4"
      AND akt_at_at_se_se_ag_ag_no = :"SYS_B_5"
      )
    )
  )
ORDER BY
  akt_at_at_se_se_ag_ag_wg ASC,
  akt_at_at_se_se_ag_ag_no ASC,
  aktl_akh ASC,
  aktl_akgrnr ASC,
  aktl_akgrpos ASC,
  aktl_kombiart ASC,
  akt_at_at_se_se_no ASC,
  akt_at_at_no ASC
*******************************************
    And here's the strange part.
    As far as I know, in this quotation that the optimizer realizes, that there is a better path than the AKT_INDEX, but he ignores it.
    ***************************************
BASE STATISTICAL INFORMATION
***********************
Table Stats::
  Table: AKT  Alias: AKT
    #Rows: 14006583  #Blks:  477882  AvgRowLen:  281.00  ChainCnt:  570341.00
Index Stats::
  Index: AKTL_UMNUM  Col#: 44
    LVLS: 2  #LB: 60137  #DK: 64171  LB/K: 1.00  DB/K: 179.00  CLUF: 11535830.00
  Index: AKT_INDEX  Col#: 2 3 4 5 1 6
    LVLS: 3  #LB: 83897  #DK: 13955093  LB/K: 1.00  DB/K: 1.00  CLUF: 11889950.00
  Index: AKT_INDEX010  Col#: 54 56
    LVLS: 2  #LB: 37453  #DK: 392568  LB/K: 1.00  DB/K: 5.00  CLUF: 1127943.00
  Index: AKT_INDEX011  Col#: 55 57
    LVLS: 2  #LB: 33967  #DK: 2102  LB/K: 65.00  DB/K: 869.00  CLUF: 449507.00
  Index: AKT_INDEX012  Col#: 2 3 4 5 6
    LVLS: 2  #LB: 66503  #DK: 2506277  LB/K: 1.00  DB/K: 5.00  CLUF: 13420693.00
  Index: FK_AKH_AKTL_AKH  Col#: 1 6
    LVLS: 2  #LB: 35870  #DK: 184651  LB/K: 1.00  DB/K: 6.00  CLUF: 1131183.00
  Index: KEY_AKT  Col#: 1 2 3 4 5 6
    LVLS: 2  #LB: 82467  #DK: 13793510  LB/K: 1.00  DB/K: 1.00  CLUF: 11691370.00
Access path analysis for AKT
***************************************
SINGLE TABLE ACCESS PATH 
  Single Table Cardinality Estimation for AKT[AKT] 
  Column (#6): 
    NewDensity:0.000000, OldDensity:0.000000 BktCnt:4202816, PopBktCnt:4202810, PopValCnt:133, NDV:139
  Column (#6): AKTL_ZEN(
    AvgLen: 4 NDV: 139 Nulls: 0 Density: 0.000000 Min: 1 Max: 61044
    Histogram: Freq  #Bkts: 139  UncompBkts: 4202816  EndPtVals: 139
  Column (#2): 
    NewDensity:0.129575, OldDensity:0.000000 BktCnt:4201875, PopBktCnt:4201875, PopValCnt:2, NDV:2
  Column (#2): AKT_AT_AT_SE_SE_AG_AG_WG(
    AvgLen: 3 NDV: 2 Nulls: 0 Density: 0.129575 Min: 6 Max: 7
    Histogram: Freq  #Bkts: 2  UncompBkts: 4201875  EndPtVals: 2
  Column (#3): 
    NewDensity:0.000000, OldDensity:0.000000 BktCnt:4197711, PopBktCnt:4197711, PopValCnt:52, NDV:52
  Column (#3): AKT_AT_AT_SE_SE_AG_AG_NO(
    AvgLen: 3 NDV: 52 Nulls: 0 Density: 0.000000 Min: 6 Max: 99
    Histogram: Freq  #Bkts: 52  UncompBkts: 4197711  EndPtVals: 52
  Column (#85): SYS_STUF1FT2E0X6B6C$__BGEZQRHS(
    AvgLen: 12 NDV: 5571 Nulls: 0 Density: 0.000180 Min: 2117233 Max: 9997926970
  Column (#84): 
    NewDensity:0.000000, OldDensity:0.000000 BktCnt:4201269, PopBktCnt:4201265, PopValCnt:71, NDV:75
  Column (#84): SYS_STULHCKPI#FOQE1JMOOXNGSFB0(
    AvgLen: 12 NDV: 75 Nulls: 0 Density: 0.000000 Min: 157628517 Max: 9982459671
    Histogram: Freq  #Bkts: 75  UncompBkts: 4201269  EndPtVals: 75
  Column (#4): 
    NewDensity:0.000001, OldDensity:0.000000 BktCnt:4201338, PopBktCnt:4201338, PopValCnt:69, NDV:69
  Column (#4): AKT_AT_AT_SE_SE_NO(
    AvgLen: 3 NDV: 69 Nulls: 0 Density: 0.000001 Min: 1 Max: 98
    Histogram: Freq  #Bkts: 69  UncompBkts: 4201338  EndPtVals: 69
  Column (#5): AKT_AT_AT_NO(
    AvgLen: 4 NDV: 7466 Nulls: 0 Density: 0.000134 Min: 1 Max: 9964
  Column (#1): AKTL_AKH(
    AvgLen: 5 NDV: 16307 Nulls: 0 Density: 0.000061 Min: 14 Max: 543136
  Column (#55): 
    NewDensity:0.000001, OldDensity:0.000000 BktCnt:4203610, PopBktCnt:4203610, PopValCnt:5, NDV:5
  Column (#55): AKTL_BELART2(
    AvgLen: 3 NDV: 5 Nulls: 0 Density: 0.000001
    Histogram: Freq  #Bkts: 5  UncompBkts: 4203610  EndPtVals: 5
  Column (#57): 
    NewDensity:0.000002, OldDensity:0.000001 BktCnt:254, PopBktCnt:253, PopValCnt:1, NDV:2102
  Column (#57): AKTL_BELNR2(
    AvgLen: 3 NDV: 2102 Nulls: 0 Density: 0.000002 Min: 0 Max: 9902670
    Histogram: HtBal  #Bkts: 254  UncompBkts: 254  EndPtVals: 2
  Column (#54): 
    NewDensity:0.000088, OldDensity:0.000000 BktCnt:4204429, PopBktCnt:4204429, PopValCnt:6, NDV:6
  Column (#54): AKTL_BELART1(
    AvgLen: 3 NDV: 6 Nulls: 0 Density: 0.000088
    Histogram: Freq  #Bkts: 6  UncompBkts: 4204429  EndPtVals: 6
  Column (#56): 
    NewDensity:0.000000, OldDensity:0.000001 BktCnt:254, PopBktCnt:223, PopValCnt:1, NDV:392568
  Column (#56): AKTL_BELNR1(
    AvgLen: 3 NDV: 392568 Nulls: 0 Density: 0.000000 Min: 0 Max: 9904026
    Histogram: HtBal  #Bkts: 254  UncompBkts: 254  EndPtVals: 32
  ColGroup (#5, Index) AKT_INDEX
    Col#: 1 2 3 4 5 6    CorStregth: 8702149.74
  ColGroup (#3, Index) AKT_INDEX012
    Col#: 2 3 4 5 6    CorStregth: 2971.37
  ColGroup (#1, VC) SYS_STUF1FT2E0X6B6C$__BGEZQRHS
    Col#: 2 3 6    CorStregth: 2.59
  ColGroup (#4, Index) FK_AKH_AKTL_AKH
    Col#: 1 6    CorStregth: 12.28
  ColGroup (#7, Index) AKT_INDEX010
    Col#: 54 56    CorStregth: 6.00
  ColGroup (#6, Index) AKT_INDEX011
    Col#: 55 57    CorStregth: 5.00
  ColGroup (#2, VC) SYS_STULHCKPI#FOQE1JMOOXNGSFB0
    Col#: 2 3    CorStregth: 1.39
  ColGroup Usage:: PredCnt: 3  Matches Full: #2  Partial:  Sel: 0.0133
  Column (#34): 
    NewDensity:0.000000, OldDensity:0.000000 BktCnt:4199313, PopBktCnt:4199311, PopValCnt:9, NDV:11
  Column (#34): AKTL_STAT(
    AvgLen: 2 NDV: 11 Nulls: 0 Density: 0.000000
    Histogram: Freq  #Bkts: 11  UncompBkts: 4199313  EndPtVals: 11
  Table: AKT  Alias: AKT
    Card: Original: 14006583.000000  Rounded: 3  Computed: 3.05  Non Adjusted: 3.05
  Access Path: TableScan
    Cost:  131075.91  Resp: 131075.91  Degree: 0
      Cost_io: 129428.00  Cost_cpu: 16864951683
      Resp_io: 129428.00  Resp_cpu: 16864951683
kkofmx: index filter:"AKT"."AKTL_ZEN"=TO_NUMBER(:B1)

kkofmx: index filter:"AKT"."AKTL_AKH">=TO_NUMBER(:B1)

kkofmx: index filter:"AKT"."AKTL_AKH"<=TO_NUMBER(:B1)

kkofmx: index filter:"AKT"."AKTL_ZEN"=TO_NUMBER(:B1)

kkofmx: index filter:"AKT"."AKTL_ZEN"=TO_NUMBER(:B1)

kkofmx: index filter:"AKT"."AKTL_ZEN"=TO_NUMBER(:B1)

kkofmx: index filter:"AKT"."AKT_AT_AT_SE_SE_AG_AG_WG"=TO_NUMBER(:B1)

kkofmx: index filter:"AKT"."AKT_AT_AT_SE_SE_AG_AG_NO"=TO_NUMBER(:B1)

  ColGroup Usage:: PredCnt: 2  Matches Full: #2  Partial:  Sel: 0.0133
  ColGroup Usage:: PredCnt: 3  Matches Full: #2  Partial:  Sel: 0.0133
  ColGroup Usage:: PredCnt: 3  Matches Full: #2  Partial:  Sel: 0.0133
  Access Path: index (RangeScan)
    Index: AKT_INDEX
    resc_io: 1128.00  resc_cpu: 45259416
    ix_sel: 0.013333  ix_sel_with_filters: 0.000000 
 ***** Logdef predicate Adjustment ****** 
 Final IO cst 0.00 , CPU cst 150.00
 ***** End Logdef Adjustment ****** 
 ***** Logdef predicate Adjustment ****** 
 Final IO cst 0.00 , CPU cst 151.08
 ***** End Logdef Adjustment ****** 
 ***** Logdef predicate Adjustment ****** 
 Final IO cst 0.00 , CPU cst 151.13
 ***** End Logdef Adjustment ****** 
    Cost: 567.59  Resp: 567.59  Degree: 1
  ColGroup Usage:: PredCnt: 2  Matches Full: #2  Partial:  Sel: 0.0133
  ColGroup Usage:: PredCnt: 3  Matches Full: #2  Partial:  Sel: 0.0133
  ColGroup Usage:: PredCnt: 3  Matches Full: #2  Partial:  Sel: 0.0133
  Access Path: index (skip-scan)
    SS sel: 0.000096  ANDV (#skips): 7466.000000
    SS io: 7466.000000 vs. index scan io: 887.000000
    Skip Scan rejected
  Access Path: index (RangeScan)
    Index: AKT_INDEX012
    resc_io: 2177.00  resc_cpu: 54677577
    ix_sel: 0.013333  ix_sel_with_filters: 0.000096 
 ***** Logdef predicate Adjustment ****** 
 Final IO cst 0.00 , CPU cst 150.00
 ***** End Logdef Adjustment ****** 
    Cost: 1092.54  Resp: 1092.54  Degree: 1


  Access Path: index (RangeScan)
    Index: FK_AKH_AKTL_AKH
    resc_io: 201.00  resc_cpu: 15070140
    ix_sel: 0.004500  ix_sel_with_filters: 0.000032 
    Cost: 101.24  Resp: 101.24  Degree: 1
New AP rejected: guess used for New but not for Current Best
  ColGroup Usage:: PredCnt: 3  Matches Full: #2  Partial:  Sel: 0.0133
  ColGroup Usage:: PredCnt: 3  Matches Full: #2  Partial:  Sel: 0.0133
  Access Path: index (RangeScan)
    Index: KEY_AKT
    resc_io: 380.00  resc_cpu: 15131385
    ix_sel: 0.004500  ix_sel_with_filters: 0.000000 
 ***** Logdef predicate Adjustment ****** 
 Final IO cst 0.00 , CPU cst 150.00
 ***** End Logdef Adjustment ****** 
    Cost: 191.20  Resp: 191.20  Degree: 1
New AP rejected: guess used for New but not for Current Best
  ****** trying bitmap/domain indexes ******


  Access Path: index (IndexOnly)
    Index: FK_AKH_AKTL_AKH
    resc_io: 164.00  resc_cpu: 13914716
    ix_sel: 0.004500  ix_sel_with_filters: 0.000032 
    Cost: 82.68  Resp: 82.68  Degree: 0
    SORT ressource         Sort statistics
      Sort width:         612 Area size:     1048576 Max Area size:   107366400
      Degree:               1
      Blocks to Sort: 1 Row size:     21 Total Rows:            252
      Initial runs:   1 Merge passes:  0 IO Cost / pass:          0
      Total IO sort cost: 0      Total CPU sort cost: 10324700
      Total Temp space used: 0
  ColGroup Usage:: PredCnt: 2  Matches Full: #2  Partial:  Sel: 0.0133
  ColGroup Usage:: PredCnt: 2  Matches Full: #2  Partial:  Sel: 0.0133
  ColGroup Usage:: PredCnt: 2  Matches Full: #2  Partial:  Sel: 0.0133
  Access Path: index (IndexOnly)
    Index: AKT_INDEX
    resc_io: 1122.00  resc_cpu: 45203856
    ix_sel: 0.013333  ix_sel_with_filters: 0.013333 
    Cost: 563.21  Resp: 563.21  Degree: 0
    SORT ressource         Sort statistics
      Sort width:         612 Area size:     1048576 Max Area size:   107366400
      Degree:               1
      Blocks to Sort: 481 Row size:     21 Total Rows:         186754
      Initial runs:   2 Merge passes:  1 IO Cost / pass:        262
      Total IO sort cost: 743      Total CPU sort cost: 169417045
      Total Temp space used: 3015000
  Bitmap nodes:
    Used FK_AKH_AKTL_AKH
      Cost = 83.692016, sel = 0.000018
    Not used AKT_INDEX
      Cost = 1940.139796, sel = 0.013333
  ****** finished trying bitmap/domain indexes ******
  Best:: AccessPath: IndexRange
  Index: AKT_INDEX
         Cost: 567.59  Degree: 1  Resp: 567.59  Card: 3.05  Bytes: 0

***************************************
    So my question, of course, why not make the path through FK_AKH_AKTL_AKH?

    THX in advance

    Joerg

    Published by: Joerg on September 23, 2011 17:05

    The bind variable you made are non-peekable, because the example you did evidence "explain plan" - which means that the optimizer uses is standard figures assumed that for "between: bind1 and: bind2 ', on the other hand, as predicates" column =: channels3 "can legally be estimated according to the density of the column.

    This means that you probably searching for the case described in a blog post that I wrote some time ago:
    http://jonathanlewis.WordPress.com/2010/09/07/CBO-surprise-3/

    Concerning
    Jonathan Lewis

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