Building a form based on a synonym that points to a database link

Hello
Finally I got APEX 3 installed on our test server. I am starting to work with it and I faced my first problem...
I need to build an application that will query and maintain data stored in another database server. This is because we were not allowed to install APEX in the production server. So I created a schema DEV_USER (which I associated with the workspace). In this schema I created a private database link my_link and a synonym:
create synonym the_table for the_table@my_link
I am trying to create a form to query and maintain that table via the synonym but I am not succeeding. The wizard does not work as the synonym is not listed in the table list. Then I created the form manually, creating the items, the Automatic Row Processing process etc. When I run the page I get the error Error ORA-01403: no data found.
Is it possible to use APEX in this scenario (accessing synonyms that point to database links)? What is the recommended approach in this case?
Thanks
Luis

Hi Kathryn
Thanks very much for your reply. I did as you suggested; I dropped the synonym and created a view:
create view my_table as select * from my_table@my_dblink
...and was able to create a multirow form based on that view.
However, when I try to update any value on the form, I get the following error when submitting it:
Error in mru internal routine: ORA-20001: Error in MRU: row= 1, ORA-01461: can bind a LONG value only for insert into a LONG column ORA-02063: preceding line from DB_LINK, update "APEX_DEV"."MY_TABLE" set "CAMPAIGN_ID" = :b1, "SITE" = :b2, "PERCENTUAL" = :b3, "DURATION_MONTHS" = :b4, "PRG_ID" = :b5, "AFF_ID" = :b6 where "CAMPAIGN_ID" = :p_pk_col and "SITE" = :p_pk_col2
I thought it was because the form was based on a view; so I dropped the view and re-created the synonym (using the same name). When I tried to submit the updates again I got this error:
Error in mru internal routine: ORA-20001: Error in MRU: row= 0, ORA-20001: ORA-20001: Current version of data in database has changed since user initiated update process. current checksum = "35636E5FDD251146DB4B7B56119E7914", item checksum = "A884FA378C851786DDFE3A33709CB23C"., update "APEX_DEV"."MY_TABLE" set
If you or anyone else could point out what I am missing, and maybe explain what those messages mean, it would be great!
Thanks
Luis

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Hi Kathryn
Thanks very much for your reply. I did as you suggested; I dropped the synonym and created a view:
create view my_table as select * from my_table@my_dblink
...and was able to create a multirow form based on that view.
However, when I try to update any value on the form, I get the following error when submitting it:
Error in mru internal routine: ORA-20001: Error in MRU: row= 1, ORA-01461: can bind a LONG value only for insert into a LONG column ORA-02063: preceding line from DB_LINK, update "APEX_DEV"."MY_TABLE" set "CAMPAIGN_ID" = :b1, "SITE" = :b2, "PERCENTUAL" = :b3, "DURATION_MONTHS" = :b4, "PRG_ID" = :b5, "AFF_ID" = :b6 where "CAMPAIGN_ID" = :p_pk_col and "SITE" = :p_pk_col2
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Error in mru internal routine: ORA-20001: Error in MRU: row= 0, ORA-20001: ORA-20001: Current version of data in database has changed since user initiated update process. current checksum = "35636E5FDD251146DB4B7B56119E7914", item checksum = "A884FA378C851786DDFE3A33709CB23C"., update "APEX_DEV"."MY_TABLE" set
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Edited by: moo on Apr 11, 2011 11:55 AM

Did you define local synonyms for the objects? Try this and then come back..
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While it is true that technology waits for no man; stupidity will always stop to take on new passengers.
If this question is answered, please mark the thread as closed and assign points where earned..

Building a form based on a synonym that points to a database link

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