Using substr function loses index. Query tune help

Hi
when i use substr function in the join condition it loses index and the query is slow. How to fix this problem or tune this query. These are the lines in the query.
and substr(a.invoice_num,1,9) = l.invoice_num
and substr(c.invoice_num,1,9) = mgr_apprv_lst.user_key
and substr(c.invoice_num,1,9) = pbl_apprv_lst.user_key
select
pap.full_name employe_name,
     k.SEGMENT1 ||'.' ||k.segment2 Cost_Center,
     a.invoice_num Invoice_Number,
     b.item_description Line_Item,
     b.amount Amount,
     cc.trx_id Corporate_Card_Transaction_Id,
     cc.transaction_date Date_Charge_Incurred,
     cc.posted_date Date_Charge_Posted_To_USBank,
     cc.creation_date Date_Posted_To_IExpense,
     a.creation_date Expense_Report_Creation_Date,
     l.report_submitted_date Expense_Report_Submitted_Date,
     mgr_apprv_lst.activity_begin_date Managers_Approval_Begin_Date,
     mgr_apprv_lst.activity_end_date Managers_Approval_End_Date,
     pbl_apprv_lst.activity_begin_date AP_Approval_Begin_Date,
     pbl_apprv_lst.activity_end_date AP_Approval_End_Date,
     e.check_date Payment_Date_To_USBank,
     e.check_number Payment_Number,
     mgr_apprv_lst.activity_result_display_name Managers_Process_Result,
     pbl_apprv_lst.activity_result_display_name AP_Process_Result
from
     ap_checks_all e,
     ap_invoice_payments_all d,
     ap_invoices_all c,
ap_expense_report_headers_all a,
     ap_credit_card_trxns_all cc,
     per_all_people_f pap,
     ap_expense_report_headers_all l,
     ap_expense_report_lines_all b,
     gl_code_combinations k,
     (select ias1.user_key,
     ias1.activity_result_display_name,
     ias1.activity_begin_date,
     ias1.activity_end_date
from wf_item_activity_statuses_v ias1,
(select c1.invoice_num
     from ap_checks_all e1,
     ap_invoice_payments_all d1,
     ap_invoices_all c1
     where trunc(e1.check_date) between nvl(:From_Date, trunc(e1.check_date))
     and nvl(:To_Date, trunc(e1.check_date))
and e1.org_id = 141
and e1.void_date IS null
and d1.check_id = e1.check_id
     and c1.invoice_id = d1.invoice_id) inv_lst1
where ias1.item_type = 'APEXP'
and ias1.user_key = inv_lst1.invoice_num
and ias1.activity_name = 'AP_MANAGER_APPROVAL_PROCESS') mgr_apprv_lst,
(select ias2.user_key,
     ias2.activity_result_display_name,
     ias2.activity_begin_date,
     ias2.activity_end_date
from wf_item_activity_statuses_v ias2,
(select c2.invoice_num
     from ap_checks_all e2,
     ap_invoice_payments_all d2,
     ap_invoices_all c2
     where trunc(e2.check_date) between nvl(:From_Date, trunc(e2.check_date))
     and nvl(:To_Date, trunc(e2.check_date))
and e2.org_id = 141
and e2.void_date IS null
and d2.check_id = e2.check_id
     and c2.invoice_id = d2.invoice_id) inv_lst2
where ias2.item_type = 'APEXP'
and ias2.user_key = inv_lst2.invoice_num
and ias2.activity_name = 'AP_PAYABLES_APPROVAL_PROCESS') pbl_apprv_lst
where
trunc(e.check_date) between nvl(:From_Date, trunc(e.check_date))
and nvl(:To_Date, trunc(e.check_date))
and e.org_id = 141
and e.void_date IS null
and d.check_id = e.check_id
and c.invoice_id = d.invoice_id
and a.invoice_num = c.invoice_num
and a.source = 'CREDIT CARD'
and a.employee_id = nvl(:Emp_id,a.employee_id)
and a.report_header_id = b.report_header_id
and cc.trx_id = b.credit_card_trx_id
and pap.person_id = a.employee_id
and pap.effective_start_date <= trunc(sysdate)
and pap.effective_end_date >= trunc(sysdate)
and k.code_combination_id = b.code_combination_id
and k.segment2 between nvl(:From_Cost_Center,k.segment2)
and nvl(:To_Cost_Center,k.segment2)
and substr(a.invoice_num,1,9) = l.invoice_num
and substr(c.invoice_num,1,9) = mgr_apprv_lst.user_key
and substr(c.invoice_num,1,9) = pbl_apprv_lst.user_key

Hi
If I understood correctly your logic, and if the columns involved are of type varchar2, you can use the like operator:
and a.invoice_num like l.invoice_num || '%'
and c.invoice_num like mgr_apprv_lst.user_key || '%'
and c.invoice_num like pbl_apprv_lst.user_key || '%'In this case, Oracle will be able to use the indexes. If they are numeric, you need to do something like:
and a.invoice_num between l.invoice_num * 1000000
and l.invoice_num * 1000000 + 999999I hope this makes sense...
Luis

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HI,
Good Day to All..
I'd like to use function based indexes on following column(to_char(ps.user_pc_id)).
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TO_CHAR Expression - Performance
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DTYLER_APP@pssdev2> alter table dt_fbi add constraint dt_fbi_uk unique(id) using index dt_fbi_idx;
alter table dt_fbi add constraint dt_fbi_uk unique(id) using index dt_fbi_idx
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DTYLER_APP@pssdev2> alter table dt_fbi add constraint dt_fbi_uk unique(TO_CHAR(id)) using index dt_fbi_idx;
alter table dt_fbi add constraint dt_fbi_uk unique(TO_CHAR(id)) using index dt_fbi_idx
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ERROR at line 1:
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alter table dt_fbi add constraint dt_fbi_uk unique(id) using index dt_fbi_idx
ERROR at line 1:
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BANNER
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PL/SQL Release 10.2.0.4.0 - Production
CORE    10.2.0.4.0      Production
TNS for Linux: Version 10.2.0.4.0 - Production
NLSRTL Version 10.2.0.4.0 - Production
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Can I use table function inside Dynamic query ?

Dear Gurus,
I have following code
DECLARE
TYPE CRITERIA_LIST_TABLE AS TABLE OF VARCHAR2(20);
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Thanking in advance
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Try:
DECLARE
TYPE CRITERIA_LIST_TABLE AS TABLE OF VARCHAR2(20);
OtherNoList CRITERIA_LIST_TABLE; /* CRITERIA_LIST_TABLE is index by table*/
QUERY_STRING VARCHAR2(4000);
BEGIN
OtherNoList := CRITERIA_LIST_TABLE();
SELECT DISTINCT REGEXP_SUBSTR('1,5,6,4', '[^\,]+',1, LEVEL ) BULK COLLECT INTO OtherNoList
FROM DUAL
CONNECT BY LEVEL <= REGEXP_COUNT('1,5,6,4', '\,') + 1 ;
QUERY_STRING := 'INSERT INTO TAB1 (C1,C2) '||
'SELECT C1,'||
'C2 '||
'FROM TAB1 ,'||
'TABLE( '||
'CAST (:OtherNoList AS CRITERIA_LIST_TABLE) '||
') OTHRNOS '||
'WHERE TAB1.C1 = OTHRNOS.COLUMN_VALUE ';
DBMS_OUTPUT.PUT_LINE('Query String is '||QUERY_STRING);
EXECUTE IMMEDIATE QUERY_STRING using OtherNoList;
END;p.s. not tested
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Error in using aggregate function in Outer Query in Siebel Analytics

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Using substring function with error

Hi Guys,
I have a source field with 1200 characters which need to map to multiple target segments for 132 count of this source field.
This is not a mandatory field so it sometimes come without any value.
I am using substring function to breakout the string for every 132 characters and mapped to the target segments.
There are two problems, first it seems that if source is blank, there will be error.
Second, if source field come with only eg. 300 characters, error will also occurs.
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H Rahul,
I have tried your quote but face some syntax error as follows
Function calculate, Line 6:
cannot find symbol symbol : method length() location: class java.lang.String[] j = input.length();
Function calculate, Line 26:
cannot find symbol symbol : method subString(int,int) location: class java.lang.String[]
result.addValue(input.subString(0,EndIndex));                                      ^
Function calculate, Line 34:
cannot find symbol symbol : method subString(int,int) location: class java.lang.String[]                result.addValue(input.subString(StartIndex,EndIndex));                                              ^
Function calculate, Line 40:
cannot find symbol symbol : method subString(int,int) location: class java.lang.String[]                result.addValue(input.subString(StartIndex,EndIndex));                                              ^ Note: /usr/sap/D03/DVEBMGS00/j2ee/cluster/server0/./temp/classpath_resolver/Mapd66a3a60002911e09ba9e41f132d6b68/source/com/sap/xi/tf/_MM_MT_COMS_TO_ZME_CRE_CHG_CONTRACT_.java uses or overrides a deprecated API. Note: Recompile with -Xlint:deprecation for details. Note: /usr/sap/D03/DVEBMGS00/j2ee/cluster/server0/./temp/classpath_resolver/Mapd66a3a60002911e09ba9e41f132d6b68/source/com/sap/xi/tf/_MM_MT_COMS_TO_ZME_CRE_CHG_CONTRACT_.java uses unchecked or unsafe operations. Note: Recompile with -Xlint:unchecked for details. 4 errors

How to use Substring function with Case statement.

Hello Everyone,
I have one requirement where I have to use substring function on the field for report criteria.
E.G.
I have Branch Name Field where I have all branch names information, Now some of the branch names are too big with some extension after the name .
now i want to substing it but the character length varies for each branch.
so is there any way where we can use case statement where we can define that if branch name character are exceeding some value then substing it with this length.

Try something like this:
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Hi,
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From: DOE, JOHN Added the following entry to work history:
A1S#0.25#
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Please help! Thanks!

There are ticket details in the text - I replaced certain letters with x, o, or a. I thought you would need the total number of characters in the text.
0.25#"
DOE, JOHN A Xddxd xxx xxllxwOIg xIxxI xx wxxk xOXxxxI:
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select a1.*, test_pkg.test_function(section_id) record_id
from (
select project_id, student_id, max(se.section_id) section_id
from college c, students s, sections se, zone z
where c.college_id in (121, 123, 124)
and s.student_id = c.student_id
and s.section_id = z.response_id
and z.section_id = s.section_id
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right now i use the inner query to populate the table and then use a cursor to update the
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NOTE: May be the joins are wrong, i just manipulated them.....
using oracle 10g
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from college c, students s, (select /*+ NO_MERGE */ section_id, test_pkg.test_function(section_id) as record_id from sections) se, zone z
where c.college_id in (121, 123, 124)
and s.student_id = c.student_id
and s.section_id = z.response_id
and z.section_id = s.section_id
[pre]
as you said in your original post, the joins are not all correct (there is NO join to the sections table in your query....i'd assume there should be one.
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Thanks & Best Regards,

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Using a function module in a search help.

People,
I make a function module for a search help. Into the function module I call a function 'K_GROUP_SELECT' that show me a screen to make another search but I don't know how can I put the value that this function return me in the field that the user click the button of the search help in my program.
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Thanks!
FUNCTION Z_GROUP_SELECT_ZFINCOKOH1_B.
*"*"Local Interface:
*" TABLES
*"      SHLP_TAB TYPE SHLP_DESCT
*"      RECORD_TAB STRUCTURE SEAHLPRES
*" CHANGING
*"     VALUE(CALLCONTROL) LIKE DDSHF4CTRL STRUCTURE DDSHF4CTRL
*"     VALUE(SHLP) TYPE SHLP_DESCR
tables: setheader.
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CONSTANTS:
              CLASS         TYPE SETCLASS VALUE '0103',
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              KOKRS         TYPE TKA01-KOKRS VALUE 'BPPR',
              KTOPL         TYPE TKA01-Ktopl VALUE 'CAPI'.
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*PERFORM k_group_select USING: CLASS, FIELD_NAME, KOKRS, KTOPL.
CALL FUNCTION 'K_GROUP_SELECT'
EXPORTING
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   SEARCHFLD_INPUT          = 'X'
   SEARCHFLD_REQUIRED       = 'X'
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   START_ROW                = 5
   TABLE                    = 'CCSS'
   TYPELIST                 = 'BS'
   UPDUSER                  = '*'
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   KTOPL                    = KTOPL
IMPORTING
   SET_NAME                 = setname
EXCEPTIONS
   NO_SET_PICKED            = 1
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Carlos, Please see the following program. It is working well in my system. The only difference is that I've implemented you function module as a subroutine instead of in a FM.   You can see that it will return the selected value back to the screen field.
report zrich_0002 .
data: setname type setheader-setname.
parameters: p_val type setheader-setname.
data: dynfields type table of dynpread with header line.
data: return type table of ddshretval with header line.
at selection-screen on value-request for p_val.
perform f4_help.
p_val = setname.
start-of-selection.
*       FORM f4_help                                                  *
form f4_help.
constants: class type setclass value '0103',
             field_name    type rgsbs-field value '*',
             kokrs type tka01-kokrs value 'BPPR',
             ktopl type tka01-ktopl value 'CAPI'.
call function 'K_GROUP_SELECT'
       exporting
            buttons            = 'X'
            class              = class
            cruser             = '*'
            field_name         = field_name
            searchfld          = '    '
            searchfld_input    = 'X'
            searchfld_required = 'X'
            set                = '*'
            start_column       = 10
            start_row          = 5
            table              = 'CCSS'
            typelist           = 'BS'
            upduser            = '*'
            kokrs              = kokrs
            ktopl              = ktopl
       importing
            set_name           = setname
       exceptions
            no_set_picked      = 1
            others             = 2.
endform.
REgards,
Rich HEilman

Using custom functions in a query

Hi, I have a query in a PLSQL procedure where some of the fields are data retreived from custom functions,
i. e.
select a, b, funcThatNeedsA(a), funcThatNeedsB(b)
from xxxx
where ...
but I also could use those functions by making a loop to a cursor
i. e.
cursor c_data is select a, b from xxxx where ...
for r_data in c_data loop
l_a = funcThatNeedsA(r_data.a);
l_b = funcThatNeedsB(r_data.b);
end loop;
So, my question is: what is more efficient, to use the functions directly in the query or in a loop of a cursor?

the overhead of calling your functions will not change based on using them in a loop vs a cursor. the concern is the performance of ANY loop vs not using a loop at all. so what else are you doing in the loop? does it really need to be in a loop? for example, this
insert into a select * from b
is faster than
for rec in (select * from b) loop insert into a values(rec); end loop;

Cannot use MAX function in PS Query

I am trying to use Query to select the max ( effdt ) from a table.
First, I use the 'Criteria' page to have
(1) Expression 1 = A.EFFDT - Effective Date, (2) Condition type = equal to, (3) Expression 2 = Subquery
Then the Subquery is:
(1) In the 'Field' page, I choose field E.EFFDT - Effective Date, (2) then click on 'EDIT', (3) then click on 'Max', (4) then click on 'OK' button
I then get this message: 'This field is an aggregate field but is being used in non-having criteria.(139,136). The query may fail if this is not corrected'
And as i try run anyway this query, i get this message:
SQL error. Stmt #: 5653 Error Position: 349 Return: 934 - ORA-00934: group function is not allowed here
A SQL error occurred. Please consult your system log for details.
Error in running query because of SQL Error, Code=934, Message=ORA-00934: group function is not allowed here (50,380)
NOTE: This max sql would work if i run using SqlPlus
How can i get Query to use max( effdt ) ?
Any clue anyone ? THANKS

Yes Using it as MAX is OK.
Problem is once you use it as MAX of a field, it wouln't allow this field for you to use it anymore.
A workaround i found that helped is to use the expression let's say 'MAX( a.JOB )' and use this as field.
This way, the system will allow me to use the JOBCODE field.
Thank you for all your helps as it leads me to the soln.

Error while using substring function

Hi,
I am getting the below error while using this query.
Substr("Fin Account".ASSET_NUM, instr(Fin Account".ASSET_NUM, ':')+1)
(nQSError: 10058] A general error has occurred. [nQSError: 27002] Near <(>: Syntax error [nQSError: 26012] . (HY000)
Please help me..
Edited by: user10441472 on Jun 24, 2009 12:49 PM

Substr("Fin Account".ASSET_NUM, 1, instr(Fin Account".ASSET_NUM, ':')+1)
or
Substr("Fin Account".ASSET_NUM, instr(Fin Account".ASSET_NUM, ':')+1,50)
i think you should use 3 parameters, did you try that if it would work?
additionally check what is the default format of your data: go to column properties -> data format; if its text then ok; otherwise you will have to cast the number to char; in such a case the above could be:
Substr(cast("Fin Account".ASSET_NUM as char(20)), 1, instr(cast(Fin Account".ASSET_NUM as char(20)), ':')+1)
or
Substr(cast("Fin Account".ASSET_NUM as char(20)), instr(cast(Fin Account".ASSET_NUM as char(20)), ':')+1,50)
Edited by: UserMB on Jun 25, 2009 6:17 AM

Using substr function loses index. Query tune help

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