Need for a function defined by the user in order to obtain a weighted average

Similar Questions

• Function defined by the user in order by?

  Hey guys.  We try our postgres database to Oracle to port, and I fall on this issue.  We have columns called "sortSequences", which are arrays of arbitrarily long integers.  To some fine POC, I use varray(), but that probably won't work as a production application, due to its strongly defined by size.  In any case, the crux of the problem is that I need to be able to select * from foo by sortSequence, where the evaluation order is custom code.  The array of integers represent essentially mathematics of infinite precision and we have a deterministic algorithm to compare, but we can't just produce a value between them (what I think keeps me to use a card member function in a user-defined object type.)  In other words, we don't really care what are the values, we are just using their collectively as an index of sort.  An aggregate function like the right answer, and a simple scalar function is out of the question.  We watched the field index, but it is not clear to me that even if we created an operator related to our type defined by the user that the db would use this function for order by rating...

  Everyone can think of a solution to this problem?  If we must live without this feature, we can reproduce in the application code, but we want to avoid that at all costs...

  Thank you

  Brian

  The array of integers represent essentially mathematics of infinite precision and we have a deterministic algorithm to compare, but we can not simply to produce a value between them (I think preventing me to use a card member function in a user-defined object type.)

  OK, but what about a method of ORDER?

  Since you seem to have the algorithm already, is not just a matter of implementation of the COMMAND method?

  Performance, it is not ideal but it's a start.

  Something along these lines:

  create or replace type array_t is varray (32767) integer;

  /

  create or replace type sort_sequence_t as object)

  v array_t

  member function serialize return varchar2

  , for the integer return order member function match (o sort_sequence_t)

  );

  /

  create or replace type body sort_sequence_t is

  member function serialize return varchar2 is

  RES varchar2 (4000);

  Start

  because me in 1... self.v.Count loop

  If I have 1 > then

  RES: res = | ',';

  end if;

  RES: res = | TO_CHAR (self.v (i));

  end loop;

  return res;

  end;

  order whole return leg (o sort_sequence_t) member function is

  whole v1;

  whole v2;

  Start

  because me in 1... Greatest (self.v.Count, o.v.Count) loop

  If self.v.exists (i) then

  v1: = self.v (i);

  on the other

  v1: = 0;

  end if;

  If o.v.exists (i) then

  V2: = o.v (i);

  on the other

  V2: = 0;

  end if;

  If v1< v2="">

  Returns - 1;

  elsif v1 > v2 then

  Return 1;

  end if;

  end loop;

  return 0;

  end;

  end;

  /

  Tests...

  SQL > with sample_data (id, sort_seq) as)

  2 Select 1, sort_sequence_t (array_t (10,1,1)) of all the double union

  3 select 2, sort_sequence_t (array_t (1,1, -1)) of all the double union

  4 Select 3, sort_sequence_t (array_t (1,1,1)) of all the double union

  5. Select option 4, sort_sequence_t (array_t (1,1,2)) of all the double union

  6 select 5, sort_sequence_t (array_t (1,20,1)) of all the double union

  7. Select 6, sort_sequence_t (array_t (1,7,1)) of double

  8)

  9. Select t.id

  10, t.sort_seq.serialize (as seq_str)

  sample_data 11 t

  12 order by t.sort_seq;

  ID SEQ_STR

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

  2-1,-1, -1

  3 1,1,1

  4 1,1,2

  6 1,7,1

  5 1,20,1

  1 10,1,1

  6 selected lines

  Post edited by: odie_63 - added example

• You can use functions defined by the user in orardf: statement?

  Hello, reading Chapter 5: refined for RDF data access control
  I found this example:
  
  OPTIONAL
  {
  ? control pred: hasContractValue? Val.
  ? control pred: hasManager * ' sys_context ("his $ appctx ', 'app_user_uri') ' ^^ orardf: instruction *.
  }
  
  See the orardf type: statement, I got the question if you can use functions defined by the user in the place where he has used the sys_context?
  
  Thank you.
  
  PD: The translation was made from Spanish to English by using Google Translator

  Hello Alberto,.

  Only the sys_context function is supported. The user-defined functions are not supported.

  Thank you
  Matt

• function defined by the user in the package

  Hi all
  
  is it possible to return a value greater than 1 when you use the function defined by the user in the package?

  You must declare variables US1 and US2 as well. I also modified your code a little more assing numbers directly rather than using select.

  First of all,

  Your package body and specifications should have the same input parameter names. Your spec is seen cid and your body with ccid. Has changed.

  CREATE OR REPLACE PACKAGE creator.marco_function_clienttype
    IS
  
    -- 0 - not found
    -- 1 - small business
    -- 2 - corporate
    -- 3 - individual
  
     FUNCTION f_clienttype
       (ccid number
       )
       RETURN NUMBER;
  END;
  / 
  

  CREATE OR REPLACE PACKAGE BODY creator.marco_function_clienttype
  IS
  
  FUNCTION f_clienttype (ccid NUMBER)
     RETURN NUMBER
  IS
     us    NUMBER;
     us1   NUMBER;
     us2   NUMBER;
  BEGIN
     --officialtype = 2 - corporate, officialtype = 3 - individual
     SELECT ct.officialtype
       INTO us1
       FROM contragenttype ct, contragent d
      WHERE d.ID = ccid
        AND ct.cid = d.contragenttypeid;
  
     ---
     IF us1 = 3
     THEN
        us    := 3;
     ELSE
        --ENTERPRISETYPE.id = 910 - small business
        SELECT dd.enterprisetypeid
          INTO us2
          FROM contragent dd
         WHERE dd.ID = ccid;
  
        IF us2 = 910
        THEN
           us    := 1;
        ELSE
           us    := 2;
        END IF;
     END IF;
  
     RETURN NVL (us, 0);
  END;
  END;
  / 
  

  G.

• Functions defined by the user with several parameters

  I set features three following user using "Define."

  UF1 takes a single patameter;

  UF2 takes two parameters;

  and UFX takes two parameters - with the second is 'X' in the definition.

  

  Œuvres F1.  F2 is the EVAL of F1 version and it works too.  User functions only seem to work fine.

  F3, a function of two user settings, produces a graph of NaN.

  F4 is the EVAL of F3 version.  Note that 'B 'is not replaced by 1'.  Also produces a NaN chart.

  F5 produces a graph of NaN.

  F6 is EVAL of F5.  The 'X' is not replaced (even with the ' B' above), and even if it looks like 'X * X', it also produces a graph of NaN.

  

  Is it possible to get defined by the user, with several parameters, features work by tracing the curve?

  Hi!, Fortin:

  If you download and install the ultimate Firmware with the version of the software: 2015 6 17 (8151), with the number of Version: 1.1.2 - 11, you can trace your examples of definition of the function, with curves and values, without NaN.

• function defined by the user in where clause

  Hello
  
  Please let me know how to use user-defined in the where clause. I need to use the function that returns the date for dateid.
  It generates the error...
  

  SELECT To_char(fnc_get_date_for_dateid(a.postdateid),'DD-MON-YYYY') transaction_date,
         SUM(A.points) POINTS_OR_MILES_CREDITED,
         SUM(CASE WHEN a.points is null THEN a.transactionamount ELSE a.points END),              
  FROM   accrual a
  JOIN   datecal dc ON dc.dateid = a.postdateid  
  join   MemberALL m on m.memberid = a.memberid
  WHERE a.awardnumber IS NULL
    AND a.accrualtype = 'B'
  GROUP BY To_char(fnc_get_date_for_dateid(a.postdateid),'DD-MON-YYYY')
  ORDER BY a.postdateid;

  Error

  ORA-00979: not a GROUP BY expression
  00979. 00000 -  "not a GROUP BY expression"

  Thank you
  Sandy

  Hi Sandy,

  Have you tried like
  ===========================

  SELECT To_char (fnc_get_date_for_dateid (a.postdateid), 'DD-MON-YYYY') transaction_date,.
  Sum (A.points) POINTS_OR_MILES_CREDITED,
  SUM (CASE WHERE the a.points is null THEN a.transactionamount ELSE a.points END),
  The ACCRUAL one
  JOIN dc datecal ON dc.dateid = a.postdateid
  Join MemberALL m on m.memberid = a.memberid
  WHERE a.awardnumber IS NULL
  AND a.accrualtype = 'B '.
  GROUP BY a.postdateid - To_char (fnc_get_date_for_dateid (a.postdateid), 'DD-MON-YYYY')
  ORDER BY a.postdateid;
  ==========================

  Thank you
  Slokam

• Can I use function defined by the user in the control file Sql Loader?

  Hi Master,

  Can I use fuction user-defined in the sql loader control file? Please advise... !!

  If you can provide an example... It's very kind of you.

  Concerning

  AR

  Here are a few examples that should give you clues: Sql loader

  I seriously wonder if why you use the century previous SQL * Loader instead of a external table:

  ORACLE-BASE - external Tables: querying data from flat files in Oracle

  
  

• Generator function defined by the user (normalize data points)

  Hi all

  You can use the function Scale1D to the Analisys Advanced library.

• Need for a function to generate the second neighbor no divisble by 10

  Hello
  
  WE need a function or a procedure where given a number as a parameter, need to generate then the closest number divisble by 10.
  
  For ex receives a number: 3 we must generate 10
  given a number 234 need to generate 240.
  
  Kind regards

  This does not work with multiples of 10. Use rather CEIL!

  SQL>select trunc(3/10)*10+10 from dual;
  
  TRUNC(3/10)*10+10
  -----------------
                 10
  
  SQL>select trunc(10/10)*10+10 from dual;
  
  TRUNC(10/10)*10+10
  ------------------
                  20
  
  SQL>select ceil(3/10) * 10 from dual;
  
  CEIL(3/10)*10
  -------------
             10
  
  SQL>select ceil(10/10) * 10 from dual;
  
  CEIL(10/10)*10
  --------------
              10
  

  URS

• How to call the function defined by the user

  Hello
  
  I need help...
  In my project, I have page Login.jspx where there is a user name text box.
  I second success.jspx page that has its bean class of success.java I define a method "display(). Now, I want to display() cal on my success.jspx page.
  
  can anyone help me what is the way to do it.
  
  Thanks in advance...
  
  Thank you
  Nehal

  Hello

  I think we can declare the variable txtVal of chain in the world or outside of the method and create the Set accessor method and the Get accessor.
  Then, we could try to access the value like this...

  value = "#{backingBeanScope.backing_FrgtPwd.txtVal} '"

  ~ Abhijit

• Defined by the user function in query...

  I have included a function defined by the user in the SQL query that gave rise to the query takes a long time.
  
  Select col1, col2 (col1, col2) fn_userfunction from table where col1 in (values);
  
  The function calculate some values based on col1 and col2.
  
  How this improved query performance?
  
  Concerning
  Jean-Louis

  Hello

  If it was before including quickly, then you must look at the function for the performance. Maybe you can include the function in the SQL code, which makes it faster. Something else may be to put the function in a subquery:

    select col1, col2, (select fn_userfunction(col1, col2) from dual) xxx from table where col1 in (values);
  

  But you should always try to put at least as possible function in SQL. He created above.

  If the query is too slow without the function, then an index on col1 can help, but depends on the data and distribution.

  If you need help with the feature, you must provide the code for the forum. Then, perhaps we can help.

  Herald tiomela
  http://htendam.WordPress.com

• Function of stored procedure defined by the user of the appellant

  Hi all -
  
  I am trying to call a function defined by the user of a stored procedure. I'm using something like
  

        IF condition1 THEN
             function1(param1, param2);
       END IF;

  the above is correct.
  
  I have PLS-00221 function1 is not a stored procedure or is not defined?

  Well, if it is a function, you will need to assign its result value in a variable.

  Like this:

  DECLARE some_variable [of the right datatype];
  ...
   IF condition1 THEN
          some_variable := function1(param1, param2);
   END IF;
  

• Objects of the class defined by the user for an element of the ADF (button, inputfield)

  How to set a class object defined by the user for objects of the ADF?
  My requirement is that when I make a change to the object of the class, it should get reflectected to all instances on my page.
  For example:-I'll have the class object clsInputField, and all my fields entry in my pages are based on this object. So when I change clsInputField it should get reflected to all my controls based on this class object.
  Help, please!

  It's the classic use of a library of component declarative ADF.
  Put your postal code entry filed in an adf library, as well as any other code you will need to manage the entry, pack it as a library of the adf and reuse the item (and its formatting, validation) on each page as you like.
  If you change the component changes are global to all instances of the component.

  Take a look at this demo

  Timo

• PCM - data import and fields defined by the user - model import or the XML API?

  Hello
  
  I am currently partially by an implementation of the PCM with my business and have created a few user-defined fields in the application companies. I have data from a form on the internet into a CSV file that I want then to eye-ball before loading of PCM.
  
  I created a copy of the "export contracts report template ' to include these fields defined by the user, but when I try to re - import the data, the user-defined fields are not populated.
  
  No one knows if the user-defined fields can be updated in PCM, and if so does to do through the functionality of the XML API?
  
  Kind regards.
  
  Published by: 914327 on February 14, 2012 03:39

  The simple answer is that the built-in import utility is designed to import a preset list of fields only and will not import your custom fields even if they are added in the import file, and you will need to use the API to import these fields.

  However, there are unsupported methods to import this data directly to the database, or to add custom fields as options available for import. I can tell you more about these methods on the forum offline if you are interested.

• Defined by the user exception handling

  Hello
  
  version Oracle 11.1.0.7
  
  Question 1:
  I just want to know what is the difference between the methods for using user-defined exceptions.
  
  Method 1: don't need initialization exception
  

  create or replace procedure p1
  as
  exc_p1 exception;
  begin
   do something .... 
   -- fails
   Raise exc_p1;
   exception when exc_p1 then
   raise;
   end;
   

  Method 2: use initialization exception

   create or replace procedure p2
   as
  exc_p2 exception;
  prgma exception_init(exc_p2,-20999);
  begin 
  p1;
  exception
  when exc_p2 then 
  raise;
  end;

  Question2
  
  Please let me know when and where to use these user-defined functions and I read the comments of Tom kyte on the use then than others, then raise or raise_application_error
  exception management. Rather than use the raise or raise_application_error can I use "dbms_output.put_line (dbms_utility.format_error_backtrace); dbms_output.put_line (dbms_utility.format_error_stack)) 'or can I do the exceptions as handler below.

  " when others then 
  raise_application_error(-20001,'error in p1  '||dbms_utility.format_error_backtrace ||dbms_utility.format_error_stack); " 

  Thank you
  Mike

  Mike wrote:
  Hello

  version Oracle 11.1.0.7

  Question 1:
  I just want to know what is the difference between the methods for using user-defined exceptions.

  Method 1: don't need initialization exception

  create or replace procedure p1
  as
  exc_p1 exception;
  begin
  do something ....
  -- fails
  Raise exc_p1;
  exception when exc_p1 then
  raise;
  end;
  

  Method 2: use initialization exception

  create or replace procedure p2
  as
  exc_p2 exception;
  prgma exception_init(exc_p2,-20999);
  begin
  p1;
  exception
  when exc_p2 then
  raise;
  end;
  

  The first method is used when you plan to raise user-defined errors by using the name, and user-defined errors are raised in the procedure you capture them.

  The second method is used when you want to capture a specific error number, it's an error specific oracle (one that has not already been appointed) or a user defined error. In your example procedures, if we show what exceptions occur by putting in the debugging...

  SQL> ed
  Wrote file afiedt.buf
  
    1  create or replace procedure p1 as
    2    exc_p1 exception;
    3  begin
    4    Raise exc_p1;
    5  exception when exc_p1 then
    6    dbms_output.put_line('P1:exc_p1');
    7    raise;
    8* end;
  SQL> /
  
  Procedure created.
  
  SQL>
  SQL> create or replace procedure p2 as
    2    exc_p2 exception;
    3    pragma exception_init(exc_p2,-20999);
    4  begin
    5    p1;
    6  exception
    7    when exc_p2 then
    8      dbms_output.put_line('P2:exc_p2');
    9      raise;
   10    when others then
   11      dbms_output.put_line('Other exception');
   12      raise;
   13  end;
   14  /
  
  Procedure created.
  
  SQL> set serverout on
  SQL> exec p2;
  P1:exc_p1
  Other exception
  BEGIN p2; END;
  
  *
  ERROR at line 1:
  ORA-06510: PL/SQL: unhandled user-defined exception
  ORA-06512: at "SCOTT.P2", line 12
  ORA-06512: at line 1
  

  ... we can see that the captured P1 procedure an exception defined by the user by his name, but procedure P2 could only recognize as being a mistake 'OTHERS '.

  But if P1 were to raise a specific error number...

  SQL> create or replace procedure p1 as
    2    exc_p1 exception;
    3  begin
    4    Raise exc_p1;
    5  exception when exc_p1 then
    6    dbms_output.put_line('P1:exc_p1');
    7    raise_application_error(-20999,'Procudure 1 error raised',true);
    8  end;
    9  /
  
  Procedure created.
  
  SQL> exec p2;
  P1:exc_p1
  P2:exc_p2
  BEGIN p2; END;
  
  *
  ERROR at line 1:
  ORA-20999: Procudure 1 error raised
  ORA-06512: at "SCOTT.P1", line 7
  ORA-06510: PL/SQL: unhandled user-defined exception
  ORA-06512: at "SCOTT.P2", line 9
  ORA-06512: at line 1
  
  SQL>
  

  ... then because P2 is looking for this under his own name of exp_p2 error number, he seized the exception thrown by P1 as is exp_p2 exception.

  Now, just to complete the example...

  SQL> create or replace procedure p1 as
    2    exc_p1 exception;
    3    pragma exception_init(exc_p1,-20999);
    4  begin
    5    Raise exc_p1;
    6  exception when exc_p1 then
    7    dbms_output.put_line('P1:exc_p1');
    8    raise;
    9  end;
   10  /
  
  Procedure created.
  
  SQL> exec p2;
  P1:exc_p1
  P2:exc_p2
  BEGIN p2; END;
  
  *
  ERROR at line 1:
  ORA-20999:
  ORA-06512: at "SCOTT.P2", line 9
  ORA-06512: at line 1
  

  ... P1 has now associated with error number 20999 is exc_p1 exception, when he simply raises this exception is triggered 20999 error number. P2 is unable to capture under the name of exc_p1 because this exception name does exist in the process of P1, but because P2 seeks 20999 under his own name of exc_p2 exception, it manages to capture him.

  So, to summarize, the name of the exception without the pragma is allowed to handle exceptions as part of the same name, but if you need capture outside the scope, you use the pragma to assign a number to it-specific exception.

  Question2

  Please let me know when and where to use these user-defined functions and I read the comments of Tom kyte on the use then than others, then raise or raise_application_error

  User-defined exceptions are used mainly to treat logic errors. The key is the word "handful." If you can handle an exception (i.e. to do something) you should capture it and do what needs doing. If you can't handle it then, you have to trigger it.
  Using a then "than others' exception should be a last resort. In general, you only manage exceptions that you plan to arrive. One then "than others' captures all exceptions that have not already been dealt with. If you have an exception "while others" and you do not throw the exception upward once again, then effectively hide you any errors to get noticed (errors are still happening, but you are not aware of them except for the fact that your "code does not work" or "data is not correct"). The only time you would really use one then "than others' exception would be if you need to connect all the errors in a table, but then after the cut, which should continue to be the exception to the calling code.

  exception management. Rather than use the raise or raise_application_error can I use "dbms_output.put_line (dbms_utility.format_error_backtrace); dbms_output.put_line (dbms_utility.format_error_stack)) 'or can I do the exceptions as handler below.

  " when others then
  raise_application_error(-20001,'error in p1  '||dbms_utility.format_error_backtrace ||dbms_utility.format_error_stack); " 
  

  You should not use dbms_output.put_line, except for the purpose of debugging. To use that assumes that the output of the server is catches or displayed, which, if it is a backend process, it won't. The correct way to error log is a table, or at worst a file on the server.

  If you need generate an application error and you want to keep the stack error, you just need the third parameter set to TRUE.

  raise_application_error({errornumber},{message},true);