Oracle stored functions and where clauses

Hello everybody,
I need to call an Oracle stored function and at the same time do a select on
the result of the query, it works well except when I use a where clause. I
am connecting to Oracle 8.1.7 through OLEDB using the Oracle provider for
OLEDB distributed with this Oracle version.
Here is the query I am doing:
select * from {call MC.SEC.QryTermbases(?, ?) where ID = ?}
If I remove the where clause it works well but I need to use the where. I
know that I could pass the parameter to the procedure instead of doing that
in the select but there are places where I can not do that since the SQL
query is generated dynamically. The code above is just a demo.
Thanks very much for your help,
Jose.

Thanks for answering, it is actually possible to do a select on the return of a function, I have tested it with other than "select *" and it has worked well. What has not worked for me is using a "where" clause. That is "select" without "where" has worked but not with the "where".
I also suspect that it does not work but similar queries work well in MSSQL 2000 and Interbase 6.0 so I thought may be there was a way to do that with Oracle. That is in MSSQL I can treat the result of a function as a normal table and I can do the same thing with a stored procedure that returns a recordset in Interbase.
Thanks again for answering,
Jose.

Similar Messages

Oracle stored ns and where clauses

Hello everybody,
I need to call an Oracle stored function and at the same time do a select on the result of the query, it works well except when I use a where clause. I am connecting to Oracle 8.1.7 through OLEDB using the Oracle provider for
OLEDB distributed with this Oracle version.
Here is the query I am doing:
select * from {call MC.SEC.QryTermbases(?, ?) where ID = ?}
If I remove the where clause it works well but I need to use the where. I know that I could pass the parameter to the procedure instead of doing that in the select but there are places where I can not do that since the SQL
query is generated dynamically. The code above is just a demo.
Thanks very much for your help,
José.

Thanks for answering, it is actually possible to do a select on the return of a function, I have tested it with other than "select *" and it has worked well. What has not worked for me is using a "where" clause. That is "select" without "where" has worked but not with the "where".
I also suspect that it does not work but similar queries work well in MSSQL 2000 and Interbase 6.0 so I thought may be there was a way to do that with Oracle. That is in MSSQL I can treat the result of a function as a normal table and I can do the same thing with a stored procedure that returns a recordset in Interbase.
Thanks again for answering,
Jose.

Clarification on using function in where clause of oracle sql query

I have an issue in regarding function using where clause of sql query..
We are facing performance issue while executing query, so in what ways to improve the performance of the query which i have posted below.
select col ,case when my_function(parameter)
from tab1 a ,tab2 b,tabl3 c
where a.column1=b.column2
and b.column3 =c.column6
and my_function(parameter)>0
Regards
Dinesh
Edited by: wild fire on May 18, 2012 4:15 PM

Dinesh,
remind that when you use a function in the where clause it normally will get started for each record in the table.
So your answer is two-fold:
1. make the function only start when needed by adding a function based index on the table (this will make inserts and updates slower)
2. make the function faster by adding the DETERMINISTIC clause if possible. this will make Oracle "cache" the result of the function.
Regards,
Richard
blog: http://blog.warp11.nl
twitter: @rhjmartens
If this question is answered, please mark the thread as closed and assign points where earned..

Call of constant function in where clause

Hi there,
I want to execute the following query
select a_field
from a_table
where another_field = a_func('10')
where a_func is a stored function and returns a value dependent on its argument. Same argument returns same result. How to see, the argument is a_table-independent (constant), so the result is a constant. How can I prevent oracle from executing a_func for each row of a_table? I know, that the following code works:
select a_field
from a_table
where another_field = (select a_func('10') from dual)
but this less readable and harder to explain to low-level-users in my eyes. Is there any pragma or anything else I can do, so the first statement can executed with a single(!) execution of a_func?
Thanks, ALu.
null

Unfortunately Variables do not help in this case. The query-text goes (in one of three uses) into a Delphi-TQuery-Object and after opening it the results are shown. Declaring Variables is not allowed this way. I want a single (very) easy(!) statement to be executed (see the first one above). To explain the use of the function is ok (instead of using any subselect this function calculates), but any subselect- or variable-usage is beyond most of my app-users that want access to the stored data. The solution must be found in declaration of a_func (to put it into a package an restrict it by WNPS, WNDS also did not help ...)
Thanx anyway, ALu.
<BLOCKQUOTE><font size="1" face="Verdana, Arial, Helvetica">quote:</font><HR>Originally posted by Narayan Acharya ([email protected]):
How about defining a variable, assigning it a value by calling the function, then using the variable in the where clause ?
Trust that would work ?
Narayan.<HR></BLOCKQUOTE>
null

Using function in where clause

I have created a function as follows
create or replace FUNCTION get_codes RETURN varchar2 IS
scodes varchar2(50) := 'A1,A2';
BEGIN
scodes := '('''||REPLACE(scodes,',',''',''')||''')';
return scodes;
END;
this function returns ('A1','A2')
now i want to use this in where clause, both below statements fetches no rows
select * from tablea where code in (select get_codes from dual);
select * from tablea where code in get_codes;
but the following will fetch rows
select * from tablea where code in ('A1','A2')
how to use function in where clause
Thanks

Hi,
The code that works:
where code in ('A1','A2')is testing whther code is either of two 2-character strings, A1 or A2.
The ones that don't work, such as:
where code in get_codes;are comparing code to one 9-character string: 'A1','A2', where characters 1, 4, 6 and 9 are single-quotes. (The function can only return one value.)
You can use dynamic SQL to embed that 9-character string in part of your query, where it will be interpreted as two 2-character strrings.
[Oracle Base|http://www.oracle-base.com/articles/misc/DynamicInLists.php] and AskTom have good pages on the subject of dynamic IN-lists.
Of you can use INSTR or LIKE:
where INSTR ( get_codes
, '''' || code || ''''
) > 0

Error while using REMAP_TABLE and WHERE clause together in IMPDP

I am trying to move some records from a very large table to another small table.
I am facing trouble while using REMAP_TABLE and WHERE clause together in IMPDP.
Problem is data filter is not getting applied and all records are getting imported.
here is how I have simulated this. please advice.
CREATE TABLE TSHARRHB.TMP1
A NUMBER,
B NUMBER
begin
Insert into TSHARRHB.TMP1
   (A, B)
Values
   (1, 1);
Insert into TSHARRHB.TMP1
   (A, B)
Values
   (2, 2);
COMMIT;
end;
expdp system/password TABLES=tsharrhb.TMP1 DIRECTORY=GRDP_EXP_DIR DUMPFILE=TMP1.dmp REUSE_DUMPFILES=YES LOGFILE=EXP.log PARALLEL=8
impdp system/password DIRECTORY=GRDP_EXP_DIR DUMPFILE=TMP1.dmp LOGFILE=imp.log PARALLEL=8 QUERY='TSHARRHB.TMP1:"WHERE TMP1.A = 2"' REMAP_TABLE=TSHARRHB.TMP1:TMP3 CONTENT=DATA_ONLY
Import: Release 11.2.0.1.0 - Production on Fri Dec 13 05:13:30 2013
Copyright (c) 1982, 2009, Oracle and/or its affiliates. All rights reserved.
Connected to: Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production
With the Partitioning, Automatic Storage Management, OLAP, Data Mining
and Real Application Testing options
Master table "SYSTEM"."SYS_IMPORT_FULL_01" successfully loaded/unloaded
Starting "SYSTEM"."SYS_IMPORT_FULL_01": system/********@GRD6.RBSG DIRECTORY=GRDP_EXP_DIR DUMPFILE=TMP1.dmp LOGFILE=SSD_93_TABLES_FULL_EXP.log PARALLEL=8 QUERY=TSHARRHB.TMP1:"WHERE TMP1.A = 2" REMAP_TABLE=TSHARRHB.TMP1:TMP3 CONTENT=DATA_ONLY
Processing object type TABLE_EXPORT/TABLE/TABLE_DATA
. . imported "TSHARRHB"."TMP3"                           5.421 KB       2 rows
Job "SYSTEM"."SYS_IMPORT_FULL_01" successfully completed at 05:13:33
here I am expecting only 1 record to get imported but both the records are getting imported. please advice.

The strange thing compared to your output is that I get an error when I have table prefix in the query block:
Connected to: Oracle Database 11g Enterprise Edition Release 11.2.0.4.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
Master table "SYSTEM"."SYS_IMPORT_FULL_01" successfully loaded/unloaded
Starting "SYSTEM"."SYS_IMPORT_FULL_01": system/******** DUMPFILE=TMP1.dmp LOGFILE=imp.log PARALLEL=8 QUERY=SYSADM.TMP1:"WHERE TMP1.A = 2" REMAP_TABLE=SYSADM.TMP1:TMP3 CONTENT=DATA_ONLY
Processing object type TABLE_EXPORT/TABLE/TABLE_DATA
ORA-31693: Table data object "SYSADM"."TMP3" failed to load/unload and is being skipped due to error:
ORA-38500: Unsupported operation: Oracle XML DB not present
Job "SYSTEM"."SYS_IMPORT_FULL_01" completed with 1 error(s) at Fri Dec 13 10:39:11 2013 elapsed 0 00:00:03
And if I remove it, it works:
Connected to: Oracle Database 11g Enterprise Edition Release 11.2.0.4.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
Master table "SYSTEM"."SYS_IMPORT_FULL_01" successfully loaded/unloaded
Starting "SYSTEM"."SYS_IMPORT_FULL_01": system/******** DUMPFILE=TMP1.dmp LOGFILE=imp.log PARALLEL=8 QUERY=SYSADM.TMP1:"WHERE A = 2" REMAP_TABLE=SYSADM.TMP1:TMP3 CONTENT=DATA_ONLY
Processing object type TABLE_EXPORT/TABLE/TABLE_DATA
. . imported "SYSADM"."TMP3"                             5.406 KB       1 out of 2 rows
Job "SYSTEM"."SYS_IMPORT_FULL_01" successfully completed at Fri Dec 13 10:36:50 2013 elapsed 0 00:00:01
Nicolas.
PS: as you can see, I'm on 11.2.0.4, I do not have 11.2.0.1 that you seem to use.

Can't have aggregate function in WHERE clause clause

Dear all,
I've created object in BO XI 3.1 Designer with following criterias:
http://img4.imageshack.us/img4/833/20111201124314.th.jpg
It is a simple number - 1,2,3,4,5.
Now I need to use this object as a criteria for WHERE function in another object.
http://img607.imageshack.us/img607/1543/20111201124717.th.jpg
I receive an error "Can't have aggregate function in WHERE clause <clause>"
How can I overcome this?
P.S. I'm sorry in advance if such topic already exist - I didn't found one.
Edited by: Ashot Antonyan on Dec 1, 2011 9:50 AM
Edited by: Ashot Antonyan on Dec 1, 2011 9:51 AM

Hi,
You will have to use Sub query to achieve this. Give more details on what is available and what you need then i could help you out with the complete solution.
Thanks,
Ravichandra K

Help:alternate for calling function in where clause

Hi ,
In below query i'm calling function in where clause to avoid COMPLETE status records,due to this query taking 700 secs to return result.If i'm remove below function condition it's returning results with in 5 secs.Can you some one advice to any alternate idea for this?
WHERE mark_status != 'COMPLETE'
SELECT assessment_school,
subject,
subject_option,
lvl,
component,mark_status,
mark_status
NULL AS grade_status,
NULL AS sample_status,
:v_year,
:v_month,
:v_formated_date,
:v_type,
cand_lang
FROM
(SELECT assessment_school,
    subject,
    subject_option,
    lvl,
    programme,
    component,
    paper_code,
    cand_lang,
    mark_entry.get_ia_entry_status(:v_year, :v_month, assessment_school, subject_option, lvl, cand_lang, component, paper_code) AS mark_status
FROM
    (SELECT DISTINCT ccr.assessment_school,
      ccr.subject,
      ccr.subject_option,
      ccr.lvl,
      ccr.programme,
      ccr.language AS cand_lang,
      ccr.paper_code,
      ccr.component
    FROM candidate_component_reg ccr
    WHERE ccr.split_session_year = :v_year
    AND ccr.split_session_month = :v_month
    AND EXISTS
      (SELECT 1
      FROM IBIS.subject_component sc
      WHERE sc.year          = ccr.split_session_year
      AND sc.month           = ccr.split_session_month
      AND sc.paper_code      = ccr.paper_code
      AND sc.assessment_type = 'INTERNAL'
      AND sc.subject_option NOT LIKE '%self taught%'
      AND sc.component NOT IN ('PERFORMANCE PRODUCTION','PRESENTATION WORK','REFLECTIVE PROJECT','SPECIAL SYLLABUS INT. ASSESSMENT')
    AND NVL(ccr.withdrawn,'N') = 'N'
    AND ccr.mark_status       != 'COMPLETE'
    AND EXISTS
      (SELECT 1
      FROM school s
      WHERE s.school_code   = ccr.assessment_school
      AND s.training_school = 'N'
WHERE mark_status != 'COMPLETE';

One thing you can test quickly is to put the function call in it's own select ...from dual.
This might make a difference.
However, only you can check this, I don't have your tables or data.
So, what happens if you use:
    paper_code,
    cand_lang,
(select mark_entry.get_ia_entry_status(:v_year, :v_month, assessment_school, subject_option, lvl, cand_lang, component, paper_code) from dual ) AS mark_status
FROM
    (SELECT DISTINCT ccr.assessment_school, --<< is the DISTINCT really needed?
      ccr.subject,
      ccr.subject_option,
...Also, try to find out the purpose of that above DISTINCT, is it really needed or is there some join missing?

Using round off function in where clause

Hi All,
I'm trying to use round off function in where clause, I seek help in completing this script.
WITH CR_Details AS
(Select
request_id,
parent_request_id,
fcpt.user_concurrent_program_name Request_Name, phase_code, status_code,
round((fcr.actual_completion_date - fcr.actual_start_date),3) * 24 * 60 as Run_Time,
round(avg(round(to_number(actual_start_date - fcr.requested_start_date),3) * 1440),2) wait_time,
fu.User_Name Requestor,
fcr.argument_text parameters,
to_char (fcr.requested_start_date, 'MM/DD HH24:mi:SS') requested_start,
to_char(actual_start_date, 'MM/DD/YY HH24:mi:SS') ACT_START,
to_char(actual_completion_date, 'MM/DD/YY HH24:mi:SS') ACT_COMP,
fcr.completion_text
From
apps.fnd_concurrent_requests fcr,
apps.fnd_concurrent_programs fcp,
apps.fnd_concurrent_programs_tl fcpt,
apps.fnd_user fu
Where 1=1
and fcr.concurrent_program_id = fcp.concurrent_program_id
and fcp.concurrent_program_id = fcpt.concurrent_program_id
and fcr.program_application_id = fcp.application_id
and fcp.application_id = fcpt.application_id
and fcr.requested_by = fu.user_id
and fcpt.language = 'US'
and fcr.actual_start_date like sysdate )
     select crd.*
     from CR_Details crd
     where Run_time <> '0'
     AND wait_time <> '0'
GROUP BY
crd.request_id,
crd.parent_request_id,
crd.fcpt.user_concurrent_program_name,
crd.requested_start_date,
crd.User_Name,
crd.argument_text,
crd.actual_completion_date,
crd.actual_start_date,
crd.phase_code,
crd.status_code,
crd.resubmit_interval,
crd.completion_text,
crd.resubmit_interval,
crd.resubmit_interval_unit_code,
crd.description
Not sure about the GROUPBY function referencing the "crd." .

Hi,
The best thing for you to do is start over. Start as small as possible, then take baby steps.
Pick one of the tables; fcr perhaps, and write a query that just uses that table, like this:
SELECT    *
FROM       apps.fnd_concurrent_requests     fcr
WHERE       fcr.actual_start_date          >= TRUNC (SYSDATE)
AND       fcr.actual_start_dt          < TRUNC (SYSDATE) + 1
;(I think this is what you meant to do when you said "... LIKE SYSDATE".)
Make sure this little query gets credible results. When that tiny query is working perfectly, add another line or two. You can cut and paste code from what you posted, if that helps you.
If you get stuck, post the last version of your code that worked perfectly, and the latest version (only a line or two bigger) that has the problem. Describe what the problem is. If you get an error, post the complete error message. In any event, post CREATE TABLE and INSERT statements for all the tables and columns needed to run the query, and the results you want to get from that query.
When you post any code, format it, so that how the code looks on the screen gives some clues about how it is working.
When you post any formatted text on this site, type these 6 characters:
\(small letters only, inside curly brackets) before and after each section of formatted text, to preserve spacing.
If you going to use the AVG function in the sub-query, then you probably need to do a GROUP BY in the sub-query.
If you're not using any aggregate functions (like AVG) in the main query, then you probably don't want to do a GROUP BY in the main query.
I know this is a lot of work. I'm sorry. If there was an easier way, I wouldn't ask you to do all this.

My function in where clause? help me please.

hello friends, I need to call my function in where clause as dummy example below:
declare
name_ table1.name%type;
function return_id(id number) return number is
begin
return 1;
end return_id;
begin
select name into name_
from table1
where id = return_id(table1.id);
end;
raise exception: 'the function doesn't used in where clause'. why????

-- CREATING A FUNCTION AVAILABLE THROUGH A PACKAGE SPEC.
SQL> ed
Wrote file afiedt.buf
1 create package mypackage is
2    function myfunc(p_val NUMBER) RETURN NUMBER;
3* end;
SQL> /
Package created.
SQL> ed
Wrote file afiedt.buf
1 create or replace package body mypackage is
2    function myfunc(p_val NUMBER) RETURN NUMBER IS
3    begin
4      RETURN (p_val*p_val)-1;
5    end;
6* end;
SQL> /
Package body created.
SQL> declare
2    v_myval NUMBER := 2;
3 begin
4    select mypackage.myfunc(v_myval)
5    into   v_myval
6    from   dual;
7    dbms_output.put_line(v_myval);
8    select mypackage.myfunc(v_myval)
9    into   v_myval
10    from   dual;
11    dbms_output.put_line(v_myval);
12 end;
13 /
3
8
PL/SQL procedure successfully completed.
-- CREATING A STANDALONE DATABASE FUNCTION.
SQL> create or replace function myfunc2(p_val number) return number is
2 begin
3    return (p_val*2)+1;
4 end;
5 /
Function created.
SQL> ed
Wrote file afiedt.buf
1 declare
2    v_myval NUMBER := 2;
3 begin
4    select myfunc2(v_myval)
5    into    v_myval
6    from dual;
7    dbms_output.put_line(v_myval);
8    select myfunc2(v_myval)
9    into    v_myval
10    from dual;
11    dbms_output.put_line(v_myval);
12* end;
SQL> /
5
11
PL/SQL procedure successfully completed.
-- CREATING A LOCAL FUNCTION IN THE ANONYMOUS PL/SQL BLOCK
SQL> ed
Wrote file afiedt.buf
1 declare
2    v_myval NUMBER := 2;
3    function myfunc3(p_val number) return number is
4    begin
5      return (p_val*p_val*p_val);
6    end;
7 begin
8    select myfunc3(v_myval)
9    into    v_myval
10    from dual;
11    dbms_output.put_line(v_myval);
12    select myfunc3(v_myval)
13    into    v_myval
14    from dual;
15    dbms_output.put_line(v_myval);
16* end;
SQL> /
select myfunc3(v_myval)
ERROR at line 8:
ORA-06550: line 8, column 10:
PLS-00231: function 'MYFUNC3' may not be used in SQL
ORA-06550: line 8, column 10:
PL/SQL: ORA-00904: : invalid identifier
ORA-06550: line 8, column 3:
PL/SQL: SQL Statement ignored
ORA-06550: line 12, column 10:
PLS-00231: function 'MYFUNC3' may not be used in SQL
ORA-06550: line 12, column 10:
PL/SQL: ORA-00904: : invalid identifier
ORA-06550: line 12, column 3:
PL/SQL: SQL Statement ignored
SQL>As you can see (and as previously mentioned by someone else) the function has to be available to the SQL engine either via a datavbase package or as a database function. If you declare the function locally within the anonymous PL/SQL block then the function only exists in the scope of that PL/SQL block and thus when your SQL statement is sent to the SQL engine for execution, the SQL engine can't see it.
;)

How can we use DECODE function in where clause.

Hi Guys,
I have to use DECODE function in where clause.
like below
select * from tab1,tab2
where a.tab1 = b.tab2
and decode(code, 'a','approved')
in this manner its not accepting?
Can any one help me on this or any other aproach?
Thanks
-LKR

>
I am looking for to decode the actual db value something in different for my report.
like if A then Accepted
elseif R then Rejected
elseif D then Denied
these conditions I have to check in where clause.
>
what are you trying to do?
may be you are looking for
select * from tab1,tab2
where a.tab1 = b.tab2
and
   (decode(:code, 'A','Accepted') = <table_column>
    or
    decode(:code, 'R','Rejected') = <table_column>
   or
    decode(:code, 'D','Denied') = <table_column>
   )

Case function in where clause

i insert the below rows in a table cash_book.
PRJ_CODE PRJ_NAME
1203 SHIFA
1203 SHIFA
1203 SHIFA
1202 FATIMA
1202 FATIMA
1203 SHIFA
if i select 1202 code then return 1202 code rows, if i select 1203 then returns 1203 code rows, if i select other than both values then returns all rows. how can i define in one query with use (case or decode function) in where clause ??

perhaps something like this:
create table test
as
select 1200 + rownum prj_code
from dual
connect by level <= 10;
select * from test;
PRJ_CODE
      1201
      1202
      1203
      1204
      1205
      1206
      1207
      1208
      1209
      1210
var v_PRJ_CODE number
exec :v_PRJ_CODE := 1200;
select *
from test
where PRJ_CODE = :v_PRJ_CODE
    or 1 = case when :v_PRJ_CODE in (1202, 1203) then 0 else 1 end;
PRJ_CODE
      1201
      1202
      1203
      1204
      1205
      1206
      1207
      1208
      1209
      1210
exec :v_PRJ_CODE := 1203;
select *
from test
where PRJ_CODE = :v_PRJ_CODE
    or 1 = case when :v_PRJ_CODE in (1202, 1203) then 0 else 1 end;
PRJ_CODE
      1203Regards
Martin

Qualifying Expression and WHERE CLAUSE Extension

I would like to know the exact difference between 'Qualifying Expression and WHERE CLAUSE Extension'. Since both are meant to contain some CONDITION that would facilitate the Edit Check's success, So I am sometimes a bit confused with these too as to when to use what.
Can someone help Please??

As you can tell from my previous posts (requests!) - I'm a newbie to OC.
From the documentation - it appears that both Qualifying expression and Where Clause work the same way but the way they execute is different.
Qualifying expression is applied after the fetch (key fields and question response data from DCM cursor i.e., after the cursor fetches the data) and Where clause filters before QG fetch.
HTH

Oracle stored function

Does anybody know how to call Oracle stored function from asp

This webpage covers this topic
http://support.microsoft.com/support/kb/articles/Q174/9/81.ASP
Regards Padraic

Difference of 'Specify Fragmentation Content' and 'where clause Filter ' ?

What is the difference of ‘Specify Fragmentation Content’ and ‘where clause Filter ‘
As per my understanding Both looks like limit the data ?

'Specify Fragmentation Content’ is for Union-ing tables, e.g. one table has data for 2008 while other has 2005-2007, so 'Specify Fragmentation Content’ tells server where to go look for data.
'Where clause Filter' is for limiting data from the table, e.g. where status = 'Funded'

Oracle stored functions and where clauses

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