Query builder: tables from Database Link

Hi APEX people,
Is there a way to use tables from a (remote) Database Link in the Query Builder?
In the Query Builder I seem to have only access to locally (schema) stored tables.
I already tried to define a Synonym for the remote tables I wanted to use, but that didn't work either.
Thanks in advance.
Maurice

Hi,
First of all, can you select from them ie
SELECT *
FROM my_table@my_linkAlso you can't see them as tables in the schema because they're not tables in the schema.
Try creating a view like...
CREATE OR REPLACE FORCE VIEW m_table_vw AS
SELECT *
FROM my_table@my_link;You should be able to see the view in the schema in the query builder and use that.
Cheers
Ben

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Query to table in Database Link returns value from local table

Hi
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Thanx
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Narvik, Norway

Hi Anders,
A loopback database link is when you want to test connecting to the same database as say a different user. It can be used for testing purposes. Creating a database link doesn't require a loopback clause. The reason why you are getting the same row count as db_b.world because db_a.world has been created as a loopback link.
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hi all,
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DBT.png ‏104 KB
LabSQL.png ‏67 KB

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I am getting the following error when i am trying to import table from database.
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How to display multiple tables from database using netbeans swing gui

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Hi.
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None

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When creating an Answers report that queries from a table owned by a custom schema (not APPS), I cannot query the table and get error. Once I add a Synonym for APPS on this table, then OBIEE works normally.
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DATA_SCALE,
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DATA_LENGTH,
DATA_PRECISION,
DATA_SCALE,
NULLABLE
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union all
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DATA_TYPE,
DATA_LENGTH,
DATA_PRECISION,
DATA_SCALE,
NULLABLE
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DATA_TYPE,
DATA_LENGTH,
DATA_PRECISION,
DATA_SCALE,
NULLABLE
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And if you want to compare table contents, then often the fastest way is also to check minuses in both directions, if the tables are not too big:
e.g.
(select * from schema1.table@dblink1
minus
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union all
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minus
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Cheers,
Mike

Query a remote table with Database Links

How do database links work with ODP.NET? The following code produces an "ORA-02041: client database did not begin a transaction" error on the Fill method.
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Just read running procedure on remote db???
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Hello:
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Vinodh2 wrote:
This is with regard to querying db2 tables using oracle views. The view is created using dblink. The querying is not an one time activity.querying will be done once in a day. Can i use normal view (will it work ) or should i use materialised view. will i be able to view the added records in db2 table using normal view?How can the SQL select statement via a dblink not work for a view, but the same SQL select statement work for a materialised view?
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Thanks.

Hi
I get the same message.I connected to the Apps database and the connection was successful.
I would retrieve tables from schema which has 60 tables in it.For others even when I enter the first few letters in the serach entry field they cannot be retrived.
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Any solution???

Using Interactive Report with SQL query accessing tables via db link

Is there a known issue with using the interactive report in version 3.1.2.00.02 with SQL that is accessing tables via a database link? I get the error 'not all variables bound', I do not get this error when using the standard report for the same SQL?
Thanks,
Edited by: [email protected] on May 26, 2009 2:59 PM

Varad,
Good question, failed to check that. In fact there are errors. Dump file c:\oraclexe\app\oracle\admin\xe\bdump\xe_s002_3640.trc
Mon Jun 15 08:48:11 2009
ORACLE V10.2.0.1.0 - Production vsnsta=0
vsnsql=14 vsnxtr=3
Oracle Database 10g Express Edition Release 10.2.0.1.0 - Production
Windows XP Version V5.1 Service Pack 3
CPU : 2 - type 586, 1 Physical Cores
Process Affinity : 0x00000000
Memory (Avail/Total): Ph:1051M/2038M, Ph+PgF:2273M/3934M, VA:1302M/2047M
Instance name: xe
Redo thread mounted by this instance: 1
Oracle process number: 16
Windows thread id: 3640, image: ORACLE.EXE (S002)
*** ACTION NAME:(PAGE 2) 2009-06-15 08:48:11.743
*** MODULE NAME:(APEX:APPLICATION 112) 2009-06-15 08:48:11.743
*** SERVICE NAME:(SYS$USERS) 2009-06-15 08:48:11.743
*** CLIENT ID:(ADMIN:232384011651572) 2009-06-15 08:48:11.743
*** SESSION ID:(24.931) 2009-06-15 08:48:11.743
*** 2009-06-15 08:48:11.743
ksedmp: internal or fatal error
ORA-07445: exception encountered: core dump [ACCESS_VIOLATION] [_LdiDateFromArray+55] [PC:0x608B04F3] [ADDR:0x0] [UNABLE_TO_WRITE] []
Current SQL statement for this session:
select Stage,Procedure,Stp,FW,Reslt,MSG,date_run
from bi_msg_VW@dwitnm
order by 1
----- PL/SQL Call Stack -----
object line object
handle number name
2FE1EA14 1207 package body SYS.DBMS_SYS_SQL
2FE1F064 328 package body SYS.DBMS_SQL
2ABDC520 5097 package body APEX_030200.WWV_RENDER_REPORT3
2BD5E55C 1538 package body APEX_030200.WWV_FLOW_DISP_PAGE_PLUGS
2BD5E55C 366 package body APEX_030200.WWV_FLOW_DISP_PAGE_PLUGS
335BDA88 11190 package body APEX_030200.WWV_FLOW
2BDBD1C8 255 procedure APEX_030200.F
2AB58D10 30 anonymous block
----- Call Stack Trace -----
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Bob

Create View from Database Links - Question

Question
I'm missing something simple.
I'm trying to create a view, from a Database Link.
CREATE VIEW view_name
AS SELECT a.*
FROM schema.tablename@dblink a;
When I run this in the SQL Commands window.
I get this error message.
ORA-00933: SQL command not properly ended
What am I missing? Any help is appreciated...

CREATE VIEW vw_name
AS SELECT a.*
FROM [email protected] a;

 
1) User (schema) which is creating view must have proper db_link to source database. For that try this for testing purpose:
select 1 from [email protected] 
If this fail then db_link is not ok! This step is absolute must to go any further step to!!!
 
2) when db_link is set, then your view should be named as:
CREATE VIEW vw_name
AS SELECT *
FROM schema_name.[email protected]; 
please pay attention to "schema_name", because from remote side every table is in some schema so it really need declaration of owner schema.
 
Hope this helps...

Query builder: tables from Database Link

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