Writing user defined function the same way as the oracle functions
Hi guys,.In one of the interviews, I saw the guy asked me to write a function defined by the user who will be the column name and the list of all values.
For example
Name: employees table
Column name: Employee_Name
Employee_name
Scott
Ivgun
Jack
Shane
The query must be in this marker
SELECT col_agg (Employee_name) emp_name of employees;
The output must be
Emp_names
Scott, ivgun, jack, shane
Please let me know if this is possible
Any suggestions will be much appreciated.
Thank you
Ranjan
You certainly could write what a user defined aggregate function if you wish...
for example this function will consolidate channels in a CLOB...
create or replace type clobagg_type as object
(
text clob,
static function ODCIAggregateInitialize(sctx in out clobagg_type) return number,
member function ODCIAggregateIterate(self in out clobagg_type, value in clob) return number,
member function ODCIAggregateTerminate(self in clobagg_type, returnvalue out clob, flags in number) return number,
member function ODCIAggregateMerge(self in out clobagg_type, ctx2 in clobagg_type) return number
);
/
create or replace type body clobagg_type is
static function ODCIAggregateInitialize(sctx in out clobagg_type) return number is
begin
sctx := clobagg_type(null) ;
return ODCIConst.Success ;
end;
member function ODCIAggregateIterate(self in out clobagg_type, value in clob) return number is
begin
self.text := self.text || value ;
return ODCIConst.Success;
end;
member function ODCIAggregateTerminate(self in clobagg_type, returnvalue out clob, flags in number) return number is
begin
returnValue := self.text;
return ODCIConst.Success;
end;
member function ODCIAggregateMerge(self in out clobagg_type, ctx2 in clobagg_type) return number is
begin
self.text := self.text || ctx2.text;
return ODCIConst.Success;
end;
end;
/
create or replace function clobagg(input clob) return clob
deterministic
parallel_enable
aggregate using clobagg_type;
/
SQL> select trim(',' from clobagg(ename||',')) as enames from emp;
ENAMES
-----------------------------------------------------------------------------------
SMITH,ALLEN,WARD,JONES,MARTIN,BLAKE,CLARK,SCOTT,KING,TURNER,ADAMS,JAMES,FORD,MILLER
SQL> ed
Wrote file afiedt.buf
1 with t as
2 (select 'PFL' c1, 0 c2,110 c3 from dual union all
3 select 'LHL', 0 ,111 from dual union all
4 select 'PHL', 1, 111 from dual union all
5 select 'CHL', 2, 111 from dual union all
6 select 'DHL', 0, 112 from dual union all
7 select 'VHL', 1, 112 from dual union all
8 select 'CPHL', 0, 114 from dual union all
9 select 'WDCL', 1, 114 from dual union all
10 select 'AHL' ,2 ,114 from dual union all
11 select 'NFDL', 3, 114 from dual)
12 --
13 -- end of test data
14 --
15 select trim(clobagg(c1||' ')) as c1, c3
16 from (select * from t order by c3, c2)
17 group by c3
18* order by c3
SQL> /
C1 C3
------------------------------ ----------
PFL 110
LHL CHL PHL 111
DHL VHL 112
CPHL AHL NFDL WDCL 114
OK, it's more that a function it uses a type of object that connects in operation internal to the ODCI... but it does what you ask. :)
Tags: Database
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User-defined function removes the expression hooks
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1 REGEXP_REPLACE (SRC_IO_PHONES_A.PHONE, ' ({: digit:{3})\.(:digit:{3})\.(:digit:{4})' 1 (\1)-\2-\3'),)
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So I thought to it thanks to a post of @oraclebase. Another friend of mine has indicated that user in ODI functions develops a sort of pseudo-code and it is not really passing commands to the database. Anyway, my research turned to substitute for the construction of all [: digit:]. This resulted in me find the above post where \d = [0-9]. By replacing all the scoring by \d hooks, the function worked.
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See documentation for more details.]] >
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' xmlns:comp = ' http://www.Oracle.com/xsl/transform/Java/COM.F17.CustomFunction.compressFile "" "
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>
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None of the answers was * exactly * correct, but they gave me enough information to solve the problem.
To implement what I have to code the functions a bit differently.
- BPEL functions are all the IXpathFunction extension classes.
- Mapper functions are not.
- BPEL functions are each separate classes.
- A single class with a method for each desired function mapper functions.
- BPEL classes outcrop in the config file ext-bpel-xpath-functions-config. XML
- The Mapper class is exposed in the config file ext-Mapper-xpath-functions - config.xml
A BPEL class looks like:
public class editCaseNumber implements IXPathFunction { public Object call(IXPathContext context, List args) throws XPathFunctionException { return docOut; } }
A class to map looks like:
public class mapperFunctions { public static String replaceString(String sIn,String sMat,String sRep,String mode){ return finalString; } public static XMLDocumentFragment compressFile(String indoc){ return docOut; } }
(I deleted the code of these to avoid confusion.)
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soa-xpath-functions xmlns="http://xmlns.oracle.com/soa/config/xpath" xmlns:map="http://www.oracle.com/XSL/Transform/java/com.f17.customfunction.mapperFunctions" version="11.1.1" resourceBundle="oracle.tip.tools.ide.common.resource.IDEMessageBundle" >
com.f17.customfunction.mapperFunctions.compressFile Compresses large strings for DB storage
USE: map:compresFile(string)
Returns XML document fragment containing HEX binary string:
<compressedFile$gt;[outPut]</compressedFile> See documentation for details.]]>com.f17.customfunction.mapperFunctions.replaceString Exposes replaceFirst and replaceAll java functions
USE: map:replaceString(String,String,String,String)
String to edit,
regular expression,
replacement string mode
1 = all
2 = first occurance
See documentation for details.]]> -
any user defined function in the rule set by the user
Hello
I wonder if I can use a function defined by the user in a rule set by the user in oracle sem... I've seen examples of user defined function the used in sparql query filter clause in this guide to dev... However, I don't know if I can define a function in oracle database SEM. and use it in the body rule or the head. For example, I want to define a function of the length that allow to calculate the difference between two dates. So, I want to set a rule as follows: event1: d1 and event1 has_start_date: has_end_date d2 and duration (24, d1, d2) then event1:date_satisfiable 'yes '. Oracle supports this type of rule? Thank you very much.
Hong
Salvation Hong,
User-defined in 12 c inference can be a good choice for your condition. Please see the following document.
Defined by the user and querying inference
Thank you
Zhe Wu
-
Hi, experts,
I wrote a sql query to get the amount after calculation.
It runs correctly, and no error returned.SELECT A.FORM_NO, C.SKUCODE, B.QUANTITY * ( CASE WHEN TO_NUMBER(TO_CHAR(A.START_DATE,'YYYY')) = 2008 AND TO_NUMBER(TO_CHAR(A.END_DATE,'YYYY')) = 2008 THEN TO_NUMBER(TO_CHAR(A.END_DATE,'MM')) - TO_NUMBER(TO_CHAR(A.START_DATE,'MM')) +1 WHEN TO_NUMBER(TO_CHAR(A.START_DATE,'YYYY')) = 2008 AND TO_NUMBER(TO_CHAR(A.END_DATE,'YYYY')) > 2008 THEN 12- TO_NUMBER(TO_CHAR(A.START_DATE,'MM')) + 1 WHEN TO_NUMBER(TO_CHAR(A.START_DATE,'YYYY')) < 2008 AND TO_NUMBER(TO_CHAR(A.END_DATE,'YYYY')) = 2008 THEN TO_NUMBER(TO_CHAR(A.END_DATE,'MM')) WHEN TO_NUMBER(TO_CHAR(A.START_DATE,'YYYY')) < 2008 AND TO_NUMBER(TO_CHAR(A.END_DATE,'YYYY')) > 2008 THEN 12 ELSE 0 END )/((TO_NUMBER(TO_CHAR(A.END_DATE,'YYYY')) - TO_NUMBER(TO_CHAR(A.START_DATE,'YYYY'))) *12 + TO_NUMBER(TO_CHAR(A.END_DATE,'MM')) - TO_NUMBER(TO_CHAR(A.START_DATE,'MM')) + 1 ) AS QUAN FROM FORM_TBL A, QUANTITY_TBL B, SKU_TBL C WHERE A.FORMNO = B.FORMNO AND B.SKU = C.SKU;
I would change for a user-defined function.
BUT IT CANNOT BE COMPILIED.create or replace function get_quantity (pi_year number, pi_year_diff number, pi_form_no varchar2, pi_skucode varchar2) return number is po_quantity number; begin SELECT ( B.QUANTITY * ( CASE WHEN TO_NUMBER(TO_CHAR(A.START_DATE,'YYYY')) = (pi_year + pi_year_diff) AND TO_NUMBER(TO_CHAR(A.END_DATE,'YYYY')) = (pi_year + pi_year_diff) THEN TO_NUMBER(TO_CHAR(A.END_DATE,'MM')) - TO_NUMBER(TO_CHAR(A.START_DATE,'MM')) +1 WHEN TO_NUMBER(TO_CHAR(A.START_DATE,'YYYY')) = (pi_year + pi_year_diff) AND TO_NUMBER(TO_CHAR(A.END_DATE,'YYYY')) > (pi_year + pi_year_diff) THEN 12- TO_NUMBER(TO_CHAR(A.START_DATE,'MM')) + 1 WHEN TO_NUMBER(TO_CHAR(A.START_DATE,'YYYY')) < (pi_year + pi_year_diff) AND TO_NUMBER(TO_CHAR(A.END_DATE,'YYYY')) = (pi_year + pi_year_diff) THEN TO_NUMBER(TO_CHAR(A.END_DATE,'MM')) WHEN TO_NUMBER(TO_CHAR(A.START_DATE,'YYYY')) < (pi_year + pi_year_diff) AND TO_NUMBER(TO_CHAR(A.END_DATE,'YYYY')) > (pi_year + pi_year_diff) THEN 12 ELSE 0 END )/((TO_NUMBER(TO_CHAR(A.END_DATE,'YYYY')) - TO_NUMBER(TO_CHAR(A.START_DATE,'YYYY'))) *12 + TO_NUMBER(TO_CHAR(A.END_DATE,'MM')) - TO_NUMBER(TO_CHAR(A.START_DATE,'MM')) + 1 )) into po_quantity FROM FORM_TBL A, QUANTITY_TBL B, SKU_TBL C WHERE A.FORMNO = B.FORMNO AND B.SKU = C.SKU and c.skucode = pi_skucode and a.form_no = pi_form_no; return po_quantity; end;
The error is a recursive sql error
ORA-00604: an error has occurred at the SQL level 1 recursive
I think that there is no syntax error.
What is the reason?
Thank you very much!What is your DB version. If you are using 11g then can be consider that
http://www.DBA-Oracle.com/sf_ora_00604_error_occurred_and_recursive_sql_level_string.htm
-
Hi, I am a newbie in oracle database,
I want to know if this is possible:
is it possible to build a sql (in string format), then run it inside a function defined by the user (NOT stored procedure)?
If so, are all versions of oracle database able to do this?
and it's samples?
and a stored procedure can be called inside a user-defined function?
Thank you!Hello
Forreging wrote:
is it possible to build a sql (in string format), then run it inside a function defined by the user (NOT stored procedure)?Yes.
Create a string that is a SQL command and then running it is called dynamic SQL .
You can do inside of a function, or a procedure. (Attention this: all procedures and functions is often called Stored Procedures .)
Everything you can do in a procedure, you can also do this in a function.If so, are all versions of oracle database able to do this?
Yes, all versions of Oracle behave this way.
and it's samples?
The [PL/SQL manual | http://download.oracle.com/docs/cd/B28359_01/appdev.111/b28370/dynamic.htm#sthref852] has many examples.
There are a lot of questions on this forum about PL/SQL. Enter "Dynamic SQL" in the serach box (top right of the Thread list page) to see [examples | http://forums.oracle.com/forums/search.jspa?objID=f75&q=dynnamic+SQL].and a stored procedure can be called inside a user-defined function?
Yes, it is done very often.
-
Use of user defined function in mathscript containing a structure
Hi, I am a novice user of LabView MathScript module,
I have the following problem when integrating my code MATLAB, LabView, for HMM: in my program, I tried to call a MATLAB called "mixgaussinit.m" user-defined function, it shows this error...
"
I just noticed that these files appear to be copyrighted. My first question is do you have author permissions to post them in a public forum? If this isn't the case, then you can remove them. That being said, I have reviewed the code and it seems easy enough to work around your problems (provided that you have the copyright permissions). How to bypass the problems is to replace the fields of the struct with variables. There is of course allows you to change some definitions of functions for input and output the necessary variables which I think was the best 5 variables. You will also need to redo the code that uses a table of error checking cell. In total, I estimated about 30 minutes of work. I would have given you work around these files had not been protected by copyright. So, unfortunately, you will need to implement the work around you.
-
How to create a user-defined function?
is there a substitute for the exe instsrv and srvany in Vista?
I don't know what means your post, so here's how to create a user-defined function:
1) click Start
(2) select "Control Panel".
(3) select "system and maintenance".
4) click on "Administrative Tools".
5) click on "Task Scheduler."
(6) click on "create task" (right in the list pane under) "Actions") "
"(7) opened in the general tab it will choose if it only works when the account that is used to implement is connected, or ' if that user is logged in or not" (leave the box ' do not store the... "empty password)
(8) always in the general tab, check the box 'run with highest privileges '. (This will ensure that no program can block)
(9) type a name for the task (in the general tab)
(10) to set the job to run an awhile, use the "triggers" tab, if you want to set a task runs after xx min. temps_inactivite, choose the 'conditions' tab, then choose the desired time.
(12) click on the 'actions' tab click on 'new '. in the program/script line, search for and select the program you want to run, and then click Open.
13) click OK in the window "create a task".
14) click OK again and you are done.
I hope this helps. -
Xquery functions using predefined in user defined functions
Hi all
I have a requirement to call a function defined by the user in the osb xquery file. That function, I use osb predefined string functions, but they do not work it displays the error message in the file of xquery. Can you please suggest how to use user-defined functions.
Thank you
Srinivas.xquery version "1.0" encoding "Cp1252"; declare namespace xf = "http://tempuri.org/TransactieService/Xquery/test/"; declare function xf:test($string1 as xs:string) as xs:string { xf:buildReferenceRange($string1) }; declare function xf:buildReferenceRange($inRange as xs:string) as xs:string { let $filtered := if (contains($inRange,"^")) then "it's in" else "it's not in" return $filtered }; declare variable $string1 as xs:string external; xf:test($string1)
It works for me
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User defined function join VS - Performance...
Hi all
all connecting mulitple table and get values... which one is the best?
Join or user-defined function...
row function
--------------------------
Select b.SID, get_salary (empid) from emp;
Note: get_salary function will return the salary of the pay tables.
Using joins
--------------
Select b.SID, b.salary from emp, a, b of salary
where a.empid = b.empid;
What is the best performancewise?
also if you give any related document also very well.
Thanks in advance.
Published by: NICOLAS BELOT on January 6, 2011 22:09Always try to avoid calling a function defined by the user from a SQL statement.
Word: context switching.
http://asktom.Oracle.com/pls/asktom/f?p=100:11:0:P11_QUESTION_ID:60122715103602"Databases are born to join" - © T.Kyte
Another must-see:
http://www.Oracle.com/technetwork/database/features/PLSQL/overview/doing-SQL-from-PLSQL-129775.PDF -
User-defined function problem. Help!
I can't get the user-defined function to work in Essbase, although it seems to be just registered. Could someone help me to have a look at java codes below? Greatly appreciated!
public class {depreciation
public static double Adeath (double r, int period, double LoanBalance) {}
Calculate amortization payment
Double LBound = LoanBalance/period;
Double UBound = LoanBalance;
Double MBound =(LBound+UBound)/2;
Double err = 0;
int i = 0;
If (r < 0 |) Period < = 0 | LoanBalance < = 0) {}
MBound = 0;
}
ElseIf (period == 1) {}
MBound = LoanBalance *(1+r) ;}
on the other
{}
Double MBalance is PVCalc (r, Period, MBound);.
ERR = MBalance-LoanBalance;
If (err > 0) {}
UBound = MBound ;}
If (err < = 0) {}
LBound = MBound ;}
MBound =(UBound+LBound)/2;
i ++ ;
}
While (err > 0.001 | err <-0,001 & & I < = 100);
return (MBound);
}
Define the present value
public static double PVCalc (double rate, NPER, double PMT int) {}
Double pvpmt = pmt;
Double cpvpmt = 0;
for (int j = NPM; j > 0; j-) {}
for (int i = 1; i < = j; i ++) {}
pvpmt = pvpmt /(1+rate/12);
}
cpvpmt = cpvpmt + pvpmt;
pvpmt = pmt;
}
Return cpvpmt;
}
}
Is there something to do with the double data type, int, double? Essbase spend 'int '?
Help, please! Thank you very much!!
Published by: user9132709 on March 2, 2010 12:47I just tried and it works.
I also added
System.out.Print (MBound);
just before the return (MBound);
in the Java class
I created a calc script against Sample.Basic
Fix("Florida","100-10","Actual","Apr")
('Sales'
'Sales' = @Amort (0.06, 360, 10000000);
)ENDFIX
I run essbase in the foreground, so I see the exit of System.out.print (Mbound);
Validated the script "59955.05251799688" was written in the output window, so the Java class works.
I also ran the calc script and the value was written in 'Sales' (the block already existed for the POV before anyone says that my script would not work)I registered the CDF of Java with.
create or replace function '@AMORT' as
"Amortization.Amort (double, int, double).You must ensure that you see something like the following in the application log or output in the command window.
External function of [GLOBAL] [@AMORT] saved OK
See you soon
John
http://John-Goodwin.blogspot.com/ -
Help! User-defined function problem.
Need help on using custom function defined in Essbase. Thanks in advance!
I have not found a function of depreciation in Essbase, so thought I might create one in Java and save it as a user defined function. However, I can't get this to work.
Here's what I did:
1. I created a java class called depreciation.
public class {depreciation
public double Adeath (double r, int period, double LoanBalance) {}
Double LBound = LoanBalance/period;
Double UBound = LoanBalance;
Double MBound =(LBound+UBound)/2;
Double err = 0;
int i = 0;
Calculate amortization payment
{}
Double MBalance is PVCalc (r, Period, MBound);.
ERR = MBalance-LoanBalance;
If (err > 0) {}
UBound = MBound ;}
If (err < = 0) {}
LBound = MBound ;}
MBound =(UBound+LBound)/2;
i ++ ;
}
While (err > 0.001 | err <-0,001 & & I < = 100);
return (MBound);
}
define the present value
public static double PVCalc (double rate, NPER, double PMT int) {}
Double pvpmt = pmt;
Double cpvpmt = 0;
for (int j = NPM; j > 0; j-) {}
for (int i = 1; i < = j; i ++) {}
pvpmt = pvpmt /(1+rate/12);
}
cpvpmt = cpvpmt + pvpmt;
pvpmt = pmt;
}
Return cpvpmt;
}
}
2. copy the .jar to 'C:\Hyperion\AnalysticServices\java\udf '.
3. has created a new MaxL file and run the script that runs:
create or replace function '@Amortize' as
'Amortization.Amort '.
Spec "@Amortize (spleen, period, balance)"
It shows: statement executed successfully.
4 then I tried to test in the following statement:
If (@isuda ("Time", "Test Date"))
"Depreciation Payment"=@Amortize (0.06, 360, 10000000);
endif;
And I got an error message as below:
Error compiling formula [amortization payment] (line 2): [)] without [()]
Could someone help me with this issue? 1 million thanks!The udf.policy file is located in the hyperion\products\essbase\essbaseserver\java directory and put the security on the java interface with Essbase points if there is a dev environment you can open the file with Notepad and go to the bottom of it. You will find a line
permission java.security.AllPermission;remove the / / (which comments out) and this will allow all java functions are allowed. After the change, you must restart the service Essbase
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Hello
Am getting the following error when applying patches autoconfig.
$FND_TOP/patch/115/bin/txkprepatchcheck.pl
Perl not defined to the Oracle Applications environment. (Libraries not in the INCLUSION list T2K)
Make sure that automatic configuration was performed and found a source correctly your environment.
/U01/tech/appl/FND/11.5.0/patch/115/bin/txkprepatchcheck.pl line 131.
BEGIN failed--compilation missed the line 141 /u01/tech/appl/fnd/11.5.0/patch/115/bin/txkprepatchcheck.plFine.
(1) source the environment file
(2) make sure that 'APPLRGF' variable is set in the environment. If this isn't the case, set it to the same value as "APPLTMP".
(3) in the place where this patch was unzipped, patch_top/patchnumber/fnd/patch/115/bin.Run the utility as follows:
Platform command line
UNIX or Linux (must be a single line)
./txkprepatchcheck.pl-script = ValidateRollup-outfile = $APPLTMP/txkValidateRollup.html - appspass =do not FND_TOP/patch/115/bin
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The user-defined functions...
Hi all
Where do we store the functions defined by the user of CF (models) in order so that it can be called by any model of CF? In the Custom Tag folder? In the directory root CF?
Thanks in advance!We re-use our functions across different sites (I think it's what your bet to) using the method 'BlackBox '. I'm sure there are other ways, but this is the norm for society, that I work. For more information, see
http://www.cfblackbox.com/Additional information:
You can store them anywhere in your site, but you can declare the function once. For example, if you have a page that includes two models. Each of the two models to compose the same model that holds your function. This will cause an error. In addition, if you have the model in a loop, it will cause an error. -
oracle database of the calling user-defined functions
Hi, are there ways to call oracle database functions defined by the user of the RPD or queries?
I think that it not there no.
But there may be some ways that I don't know.
Thank you!Yes, there is.
The function EVALUATE obiee.
Document:
http://www.Oracle.com/technology/products/bi/PDF/Oracle%20Business%20Intelligence%20Server%20and%20Embedded%20dB%20Functions.PDFYou can call defined by the user or the functions of the database system.
O address:
http://108obiee.blogspot.com/search/label/evaluateConcerning
Goran
http://108obiee.blogspot.com
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