Filtered many-to-many Assoc/Link?

Hi,
quite new to ADF (UIX) but already in serious trouble ;-)
I have 3 Entity Objects: Items, Audiovisuals and Images which map to 3 (different!) Tables. Strictly speaking Audiovisuals and Images are SubTypes of generell Items. But I decided not to implement the super-class-sub-class on entity level but on view level instead.
(Items only contains primary keys)
Based on those 3 entites are 3 view objects. Here AudiovisualsView and ImagesView inherit form ItemsView.
For Items/ItemsView exists a many-to-many Assoc/Link to an Entity/View called Categories/CategoriesView.
The Assoc is based on an intersection table.
This intersection contains besides the two foreign keys another column with some number from a lookup, say 1, 2 and 3.
Q1: how can I retrieve all Categories for an Item having e.g. 2 as number in the intersection? (just like filtering the retrieved Categories to some special attribute in the intersection)
Q2: where do I have to place the code for this filtering? At the entity level or view level or ItemViewRowImpl?
I supposes the signature must be something like "RowIterator getCategoriesView(int intersectionAttr)"
Q3: at the level of UIX, how can I pass the parameter to getCategoriesView?
Thanks in advance for any help, Christian
p.s. my data control palette only shows methods exposed at the view level but does not show methods at the view row level. How can I bind methods exposed in the client row interface to my uix page?

any hints?
thanks, Christian

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One-to-many table linking

Hi all,
I'm trying to write a report with multiple one-to-many table links. The issue is I only want a single record from the linked tables. The main table is an item table and the linked tables are issue and receipt. I want to display information from the last issue record and the last receipt record along with the item information. Not sure how to restrict the joins to just a single record (also need to sort desc on dates in the linked tables). Does this require the use of a view? or a custom sp?
Thanks for taking your time to help.
Kevin

To bring back a single record then you will probably need to use a View , command or SP.
However, in Crystal you can bring back multiple records and only display the record you want. The easiest way will be to group
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ORA-02020: too many database links in use ; but OK with where clause...

Hello all,
I have a view called V_MEDGEN_LISTRADIO but I can't run
SELECT * FROM V_MEDGEN_LISTRADIO
ORA-02020: too many database links in useThe cause is that we call in the view 5 tables over dblink and the open_links parameter is set to 4.
What is strange is that when I run this select by adding a where clause then it works!
SELECT * FROM V_MEDGEN_LISTRADIO WHERE SPRR = 3645;Can someone explain me ? (use of index so all tables are not called ???)
Thanks

Explain plan for SELECT * FROM V_MEDGEN_LISTRADIO WHERE SPRR = 3645;
| Id | Operation                              | Name            | Rows | Bytes | Cost (%CPU)| Time     | Pstart| Pstop | Inst   |IN-OUT|
|   0 | SELECT STATEMENT                       |                 |     1 |   244 |    19   (6)| 00:00:01 |       |       |        |      |
|   1 | SORT ORDER BY                         |                 |     1 |   244 |    19   (6)| 00:00:01 |       |       |        |      |
|   2 |   NESTED LOOPS                         |                 |     1 |   244 |    18   (0)| 00:00:01 |       |       |        |      |
|   3 |    NESTED LOOPS                        |                 |     1 |   218 |    17   (0)| 00:00:01 |       |       |        |      |
|   4 |     NESTED LOOPS                       |                 |     1 |   188 |    15   (0)| 00:00:01 |       |       |        |      |
|   5 |      NESTED LOOPS                      |                 |     3 |   384 |    10   (0)| 00:00:01 |       |       |        |      |
|   6 |       NESTED LOOPS                     |                 |     3 |   186 |     4   (0)| 00:00:01 |       |       |        |      |
|   7 |        REMOTE                          | SPRR            |     1 |    20 |     2   (0)| 00:00:01 |       |       | DEV10~ | R->S |
|   8 |        REMOTE                          | MPAT_MF         |     3 |   126 |     2   (0)| 00:00:01 |       |       | DEV10~ | R->S |
|   9 |       REMOTE                           | SPER_P          |     1 |    66 |     2   (0)| 00:00:01 |       |       | ORAP_~ | R->S |
|* 10 |      TABLE ACCESS BY GLOBAL INDEX ROWID| DOSSIER_MEDICAL |     1 |    60 |     3   (0)| 00:00:01 | ROWID | ROWID |        |      |
|* 11 |       INDEX RANGE SCAN                 | DOSMED_MPR_IDX2 |     2 |       |     1   (0)| 00:00:01 |       |       |        |      |
| 12 |     REMOTE                             | MEP             |     1 |    30 |     2   (0)| 00:00:01 |       |       | ORAP_~ | R->S |
| 13 |    REMOTE                              | SSV             |     1 |    26 |     1   (0)| 00:00:01 |       |       | ORAP_~ | R->S |
Predicate Information (identified by operation id):
10 - filter("DM"."EXAM_TYPE"='TELEM')
11 - access("DM"."MPR"="P"."SPER")
Remote SQL Information (identified by operation id):
   7 - SELECT "SPRR","MNEMO" FROM "SPRR" "MP" WHERE "SPRR"=3645 (accessing 'DEV10_DBLK' )
   8 - SELECT "SPAT","DU","RMPB","SPRR_MF","AU" FROM "MPAT_MF" "MF" WHERE "SPRR_MF"=3645 AND NVL("AU",:1+1)>=:2 AND
       "RMPB"='PRINC' AND "DU"<=:3 (accessing 'DEV10_DBLK' )
   9 - SELECT "SPER","NOM","PRENOM","DTE_NAI" FROM "SPER_P" "P" WHERE "SPER"=:1 (accessing 'ORAP_DBLK' )
12 - SELECT "MSJ","MEPNO_SEQ","SSV_OU_PAT_SEJOURNE" FROM "MEP" "MEP" WHERE :1="MSJ" AND :2="MEPNO_SEQ" (accessing 'ORAP_DBLK' )
13 - SELECT "SSV","LIB_1" FROM "SSV" "SSV" WHERE :1="SSV" (accessing 'ORAP_DBLK' )Explain plan for SELECT * FROM V_MEDGEN_LISTRADIO
Plan hash value: 3820716840
| Id | Operation                                | Name                  | Rows | Bytes | Cost (%CPU)| Time     | Pstart| Pstop | Inst   |IN-OUT|
|   0 | SELECT STATEMENT                         |                       |     7 | 1708 |   771   (1)| 00:00:10 |       |       |        |      |
|   1 | SORT ORDER BY                           |                       |     7 | 1708 |   771   (1)| 00:00:10 |       |       |        |      |
|   2 |   NESTED LOOPS                           |                       |     7 | 1708 |   770   (1)| 00:00:10 |       |       |        |      |
|   3 |    NESTED LOOPS                          |                       |     7 | 1568 |   763   (1)| 00:00:10 |       |       |        |      |
|   4 |     NESTED LOOPS                         |                       |     7 | 1386 |   756   (1)| 00:00:10 |       |       |        |      |
|   5 |      NESTED LOOPS                        |                       |     7 | 1176 |   742   (1)| 00:00:09 |       |       |        |      |
|   6 |       NESTED LOOPS                       |                       |   194 | 24444 |   414   (1)| 00:00:05 |       |       |        |      |
|   7 |        TABLE ACCESS BY GLOBAL INDEX ROWID| DOSSIER_MEDICAL       |   194 | 11640 |    23   (0)| 00:00:01 | ROWID | ROWID |        |      |
|* 8 |         INDEX RANGE SCAN                 | DOSMED_EXAM_TYPE_IDX2 |   194 |       |     1   (0)| 00:00:01 |       |       |        |      |
|   9 |        REMOTE                            | SPER_P                |     1 |    66 |     2   (0)| 00:00:01 |       |       | ORAP_~ | R->S |
| 10 |       REMOTE                             | MPAT_MF               |     1 |    42 |     2   (0)| 00:00:01 |       |       | DEV10~ | R->S |
| 11 |      REMOTE                              | MEP                   |     1 |    30 |     2   (0)| 00:00:01 |       |       | ORAP_~ | R->S |
| 12 |     REMOTE                               | SSV                   |     1 |    26 |     1   (0)| 00:00:01 |       |       | ORAP_~ | R->S |
| 13 |    REMOTE                                | SPRR                  |     1 |    20 |     1   (0)| 00:00:01 |       |       | DEV10~ | R->S |
Predicate Information (identified by operation id):
   8 - access("DM"."EXAM_TYPE"='TELEM')
Remote SQL Information (identified by operation id):
   9 - SELECT "SPER","NOM","PRENOM","DTE_NAI" FROM "SPER_P" "P" WHERE :1="SPER" (accessing 'ORAP_DBLK' )
10 - SELECT "SPAT","DU","RMPB","SPRR_MF","AU" FROM "MPAT_MF" "MF" WHERE NVL("AU",:1+1)>=:2 AND "RMPB"='PRINC' AND "DU"<=:3 AND
        :4="SPAT" (accessing 'DEV10_DBLK' )
11 - SELECT "MSJ","MEPNO_SEQ","SSV_OU_PAT_SEJOURNE" FROM "MEP" "MEP" WHERE :1="MSJ" AND :2="MEPNO_SEQ" (accessing 'ORAP_DBLK' )
12 - SELECT "SSV","LIB_1" FROM "SSV" "SSV" WHERE :1="SSV" (accessing 'ORAP_DBLK' )
13 - SELECT "SPRR","MNEMO" FROM "SPRR" "MP" WHERE :1="SPRR" (accessing 'DEV10_DBLK' )

ORA-02020 too many database links

Hello,
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Joel,
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Lets assume the following query with a database link in the region source is referenced for Page 1.
Page 1 - Employee Listing
Region Source:
select ename, job, hiredate
from scott.emp@link1
Lets assume the following Application Processes from the Shared Components is referenced to close the database link:
Click on Shared Components> Logic > Application Processes > Create >
Name: CLOSE_LINK1
Sequence: 1
Point: On Load: Before Header (page template header)
Type: PL/SQL Anonymous Block
Process Text: execute immediate 'ALTER SESSION CLOSE DATABASE LINK LINK1';
Error Message: Database Link Error
My thoughts are to do the following:
1. Log in SQL*Plus as SYS
SQL> grant select to v_$dblink to scott;
2. In Apex, goto Shared Components> Logic > Application Processes and add the following queries in the Process Text:
Name: CLOSE_LINK1
Sequence: 1
Process Text:
select db_link from v$dblink;
execute immediate 'ALTER SESSION CLOSE DATABASE LINK LINK1';
3. Catch the exception???
Your assistance is greatly appreciated. :8}
Ms. H

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ADF, BC4J, Jdeveloper 10.1.3
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Hi,
ADF, BC4J, Jdeveloper 10.1.3
I am working on a reporting system that contains a number of reports on tables that are linked with many-to-many relationships.
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I have Yahoo as my homepage but many news links won't load

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"Remove Cookies" from sites causing problems:
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============
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http://www.oracle.com/technology/tech/webservices/htdocs/dbwebservices/Database_Web_Services.pdf
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Filtered many-to-many Assoc/Link?

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