The result of sort set return per EXTRACT for XMLTYPE

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  Thank you

  Tom

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  I thought that these 2 numbers were due to me using stringIDToTypeID rather than charIDToTypeID. However, the second number is a way to access all the attributes of the event. So I now use the function below to get info about the event:

  function get_event_descriptor (id) {}

  var / / desc = new ActionDescriptor();

  try {}

  desc.fromID (id);

  Aref var = desc.getReference (s2t ('null'));

  var aref_obj = {}

  DCLASS: t2s (aref.getDesiredClass (s2t ('null'))),

  name: aref.getName (),.

  ID: aref.getContainer () .getName)

  };

  return JSON.stringify (aref_obj);

  } catch (e) {}

  Returns false;

  return JSON.stringify (e.message);

  }

  }

  ID is the 2nd int returned in event.data.

  Currently, I just dug around enough to make sure that the class of event parameter is returned correctly but cela is sufficient for my current needs.

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  ----------------------
  
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  Published by: oumar s Prasad on November 10, 2010 13:36

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    5  /
  
  Package created.
  
  SQL> create or replace procedure getallemp(p_cursor in out types.cursortype )
    2  as
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    4     open p_cursor for select * from emp;
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    6  /
  
  Procedure created.
  
  SQL> var lcursor refcursor
  SQL>
  SQL> exec getallemp(:lcursor)
  
  PL/SQL procedure successfully completed.
  
  SQL> print lcursor
  
       EMPNO ENAME      JOB              MGR HIREDATE         SAL       COMM     DEPTNO        DIV
  ---------- ---------- --------- ---------- --------- ---------- ---------- ---------- ----------
        7369 SMITH      CLERK           7902 17-DEC-80        800                    20         10
        7499 ALLEN      SALESMAN        7698 20-FEB-81       1600        300         30         10
        7521 WARD       SALESMAN        7698 22-FEB-81       1250        500         30         10
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        7782 CLARK      MANAGER         7839 09-JUN-81       2450                    10         10
        7788 SCOTT      ANALYST         7566 19-APR-87       3000                    20         10
        7839 KING       PRESIDENT            17-NOV-81       5000                    10         10
        7844 TURNER     SALESMAN        7698 08-SEP-81       1500          0         30         10
        7876 ADAMS      CLERK           7788 23-MAY-87       1100                    20         10
  
       EMPNO ENAME      JOB              MGR HIREDATE         SAL       COMM     DEPTNO        DIV
  ---------- ---------- --------- ---------- --------- ---------- ---------- ---------- ----------
        7900 JAMES      CLERK           7698 03-DEC-81        950                    30         10
        7902 FORD       ANALYST         7566 03-DEC-81       3000                    20         10
        7934 MILLER     CLERK           7782 23-JAN-82       1300                    10         10
  
  14 rows selected.
  

  Thank you
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• Select a table returned in the result of the query

  Hi, I'm trying to find a way to query a table name that I'm back to a different query. I am doing this in pure SQL and PL/SQL, if I can.
  
  Here's the situation. I have a table called FILES, a table called TYPE and an unknown number of different reference tables with different names.
  
  Each entry in the FILE has a reference to a TYPE id, and each entry type is a varchar that contains the name of a table reference, such as PHOTO_INFORMATION, PDF_INFORMATION or XML_INFORMATION.
  
  I want to be able to extract the data from the reference table for any data file. So with a file id, I question TYPE to get the name of the reference table (IE, "PHOTO_INFORMATION" back) then the request it is at this table for all of its columns, using the reference id in the FILE table.
  
  The thing is that I wish it were generic, so that I can just add an entry to AA_TYPE and a new table for this type, and then I can ask her but I want, through the FILE table. The reason is that there are some data that is common for all files, and I would like to that data in one place.
  
  Here is my paintings, I have two reference tables of the sample to the bottom "AA_FILETYPE1" and "AA_FILETYPE_PHOTO".
  

  CREATE TABLE  "AA_FILES" 
     (     "FILE_ID" NUMBER, 
       "FILE_NAME" VARCHAR2(4000), 
       "FILE_TYPE" NUMBER, 
       "REFERENCE_ID" NUMBER, 
        CONSTRAINT "AA_TEST_FILE_PK" PRIMARY KEY ("FILE_ID") ENABLE
     )
  /
  
  CREATE TABLE  "AA_TYPE" 
     (     "TYPE_ID" NUMBER NOT NULL ENABLE, 
       "REFERENCE_TABLE" VARCHAR2(4000), 
        CONSTRAINT "AA_TYPE_PK" PRIMARY KEY ("TYPE_ID") ENABLE
     )
  /
  
  CREATE TABLE  "AA_FILETYPE1" 
     (     "REFERENCE_ID" NUMBER, 
       "DATE_MODIFIED" DATE, 
       "SUMMARY" VARCHAR2(4000), 
       "TOTAL_VALUE" NUMBER(5,2), 
        CONSTRAINT "AA_FILETYPE1_PK" PRIMARY KEY ("REFERENCE_ID") ENABLE
     )
  /
  
  CREATE TABLE  "AA_FILETYPE_PHOTO" 
     (     "REFERENCE_ID" NUMBER NOT NULL ENABLE, 
       "DATE_TAKEN" DATE, 
       "CAMERA_NUMBER" VARCHAR2(4000), 
       "WEATHER_CONDITIONS" VARCHAR2(4000), 
       "CONSULTANT_NAME" VARCHAR2(4000), 
        CONSTRAINT "AA_FILETYPE_PHOTO_PK" PRIMARY KEY ("REFERENCE_ID") ENABLE
     )
  /

  Here's an example query I would use:
  

  select * from (select REFERENCE_TABLE from AA_TYPE where TYPE_ID = AA_FILES.FILE_TYPE) where REFERENCE_ID = AA_FILES.REFERENCE_ID;

  So who withdrew all the columns in the reference given in AA_TYPE table based on an entry in AA_FILES.
  
  I'm not entirely sure how to do this, or if this is possible even without using PL/SQL.
  
  I'm open to suggestions on how to achieve what I want with a different design of table, I am a student and I'm not really experienced in database design. (My first design of database class isn't until next year!)
  
  Thank you very much!

  Hello

  [email protected] wrote:
  Sorry about the confusion about file_id = 3, I meant the insert in the third I've included. I did not indicate the id_fichier in my inserts since it is the main key and it auto increments.

  It is important to post of the CREATE TABLE and INSERT statements that work. All those who want to help you to will want to recreate the problem and test solutions. Also, do not use strings for all entries. If the column is a NUMBER, use a NUMBER in the INSERT statement. If the column is a DATE, use a DATE or a function that returns a DATE.
  So you should post something like:

  insert into AA_FILES(FILE_ID, FILE_NAME, FILE_TYPE, REFERENCE_ID) values (1, 'test-photo-1.jpg',  1,  1);
  insert into AA_FILES(FILE_ID, FILE_NAME, FILE_TYPE, REFERENCE_ID) values (2, 'test-xml-1.jpg',    2,  2);
  insert into AA_FILES(FILE_ID, FILE_NAME, FILE_TYPE, REFERENCE_ID) values (3, 'test-photo-2.jpg',  1,  2);
  -- The value file_type=1 immediately above was not in your original data, but seems to be what you meant.
  
  prompt =====  AA_TYPE Table:  =====
  
  insert into AA_TYPE(TYPE_ID, REFERENCE_TABLE) values (1, 'AA_FILETYPE_PHOTO');
  insert into AA_TYPE(TYPE_ID, REFERENCE_TABLE) values (2, 'AA_FILETYPE1');
  
  prompt =====  AA_FILETYPE1 Table:  =====
  
  insert into AA_FILETYPE1 (REFERENCE_ID, DATE_MODIFIED,                 SUMMARY,                                    TOTAL_VALUE)
         values           (1,           TO_DATE ('01-01-02', 'MM-DD-RR'), 'An XML file that has some information about something', '14');
  
  prompt =====  AA_FILETYPE_PHOTO Table:  =====
  
  insert into AA_FILETYPE_PHOTO (REFERENCE_ID, DATE_TAKEN,                 CAMERA_NUMBER, WEATHER_CONDITIONS, CONSULTANT_NAME)
                  values            (1,          TO_DATE ('01-01-01', 'MM-DD/RR'), 'abc123',      'rainy!',         'John Smith');
  insert into AA_FILETYPE_PHOTO (REFERENCE_ID, DATE_TAKEN,                 CAMERA_NUMBER, WEATHER_CONDITIONS, CONSULTANT_NAME)
                  values            (2,          TO_DATE ('01-01-02', 'MM-DD/RR'), 'def456',      'slightly cloudy',  'Jane Jones');
  commit;
  

  To give you my workplace, I'm applying in Application Express. A user has entered the number '3' the file_id (I'm not worried about the distinction between passing in the id_fichier and the name of the file, I just my application one application or the other).

  Now, run a query that will get related data which table it is stored in. I don't know the name of the table at design time, as that particular file may be of any type (each of which has a different table name). However, with a the file_id, I have a file_type (in aa_files) which refers to an entry in aa_type.

  I see. You could add even add new tables after this query is written. As long as the new table has a column named reference_id, and there is a line for the new table in aa_files, the following query should work.

  >

  select FILE_TYPE
  from AA_FILES
  where FILE_ID = 3
  

  I stored the name of the table, I need to ask for the rest of the data in aa_type at design time, so using the file_type value, I can get the name of reference_table:

  select REFERENCE_TABLE from AA_TYPE where FILE_TYPE = 1
  

  In the sample data, you have validated, Type_de_fichier = 2 on the 3rd row. I've changed that in my example 1 revised data.
  Be very careful that your explanation fits your data. You talk to people who know about your application, and it is very easy for them to be induced in error or confusion.

  Now the '1' is here that the first query would return. I would like to use a subquery to combine these two queries into a single (I think?). This second query would return "AA_FILETYPE_PHOTO", which is the reference table.

  So I have the reference table, which is a name of table to another table in my database. It contains the data that I'm actually looking for. I want it for this particular file (file_id 3), and in aa_files, I have a value of "reference_id", which refers to the respective line in the reference table. File_id 3, the reference_id is 2.

  select * from AA_FILETYPE_PHOTO
  where reference_id = 2
  

  If the above query gets me my final data.

  Now, I've been watching substitution values and bind variables, here's another way to explain what I want:

  Explanation step by step below is very useful. It would be more useful if each step uniquely and gavce movement results given the sample data and an example of setting (3 in this case)

  -- get the file_type from aa_files for the desired file
  EXEC :file_type := (select file_type from aa_files where file_id = 3);
  

  That we will call the step step (a) above.
  Step (a) sets: Type_de_fichier 1 (given my corrected sample data)

  -- get the reference table from aa_types using the file_type
  EXEC :reference_table := (select reference_table from aa_type where type_id = :file_type);
  

  That we will call the step step (b) above.
  (B) sets the stage: reference_table to 'AA_FILETYPE_PHOTO '.

  -- get the reference_id from aa_files for the desired file
  EXEC :reference_id := (select reference_id from aa_files where file_id = 3);
  

  That we will call the step step (c) above.
  (C) sets the stage: reference_id 2

  -- using the reference table and reference id for the desired file, get the rest of the data
  select * from :reference_table where reference_id = :reference_id;
  

  Not sure if this makes it more clear or not.

  Yes, it helps a lot.

  Basically I have a table full of table names. How do I write a query that pulls one of these table names and it then queries?

  You need SQL dynamic, because you can't hardcode a table name in the query that you normally would be.
  How dynamic SQL works normally (and the functioning of this example) are that the query is built by using a variable. In SQL * more (as shown below), you can simply use a variable substitution instead an identifier hardcoded, and that's what it takes to make the dynamic query from SQL * more resolves the substitution variables before sending the code for the compiler. I don't know much on the Apex, but I bet there's some way to do dynamic SQL in the Apex, too.
  So the dynamic part here should include step d, since you can't hardcode the name of the table in the query.
  Until we can step (d), then, did they to us to do the steps (a) and (b) to obtain this file name. In the example blelow, I used a separate, preliminary request to get the & table_name...
  Step (c) could be made in the main query, using a subquery or a join. However, I chose to step (c) in the preliminary motion, as well as steps (a) and (b), since it's the same table same step (a). In this way, step (d) must refer to a table.

  Here's (finally) how to make this work in SQL * more:

  ACCEPT     file_id     PROMPT     "Enter the file_id (a number, e.g. 3): "
  
  -- Preliminary Query, to set table_name
  
  COLUMN     reference_id_col     NEW_VALUE     reference_id
  COLUMN     table_name_col           NEW_VALUE     table_name
  
  SELECT  f.reference_id          AS reference_id_col
  ,     t.reference_table       AS table_name_col
  FROM      aa_files     f
  JOIN     aa_type          t     ON     f.file_type     = t.type_id
  WHERE     f.file_id     = &file_id
  ;
  
  --     Main Query
  
  SELECT  *
  FROM     &table_name
  WHERE      reference_id     = &reference_id
  ;
  

  The results, account required to the data from the sample I posted above, and the & file_id 3, are:

  `                      CAMERA_    WEATHER_        CONSULTANT_
  REFERENCE_ID DATE_TAKE NUMBER     CONDITIONS      NAME
  ------------ --------- ---------- --------------- ---------------
             2 01-JAN-02 def456     slightly cloudy Jane Jones