Oracle-L: Problem querying remote table through a synonym

From: Nelson, Allan <anelson_at_midf.com>
Date: Thu, 04 Sep 2003 09:19:25 -0800
Message-ID: <F001.005CECA9.20030904091925@fatcity.com>

I'm confused, has anyone ever seen something like this before?

This query works as you can see:

select count(*)
from markview.mv_user_enabled_doc_type_privs_at_mv_apps2sup_mi.world;

COUNT(*)

275375

We execute the following DDL:

DROP SYNONYM MV_USER_ENABLED_DOC_TYPE_PRIVS; CREATE SYNONYM MV_USER_ENABLED_DOC_TYPE_PRIVS FOR MARKVIEW.MV_USER_ENABLED_DOC_TYPE_PRIVS_at_MV_APPS2SUP_MI.WORLD; We run the following query:
select count(*)
from mv_user_enabled_doc_type_privs;

The query hangs for over an hour before being killed. When traced it shows it is waiting for the other side to respond.

On the other hand, if I do this you can see it works!

1* select count(*) from user_tables_at_mv_apps2sup_mi.world SQL> / COUNT(*)

SQL> create synonym mine for user_tables_at_mv_apps2sup_mi.world;

Synonym created.

SQL> select count(*) from mine;

COUNT(*)

The hanging behavior is true for every table in the markview schema.
> Allan L. Nelson
> Oracle DBA
> M-I L.L.C.
> (832) 295-2238 office
> (832) 351-4180 fax
> anelson_at_midf.com <mailto:anelson_at_midf.com>
>
>
>

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Author: Nelson, Allan
  INET: anelson_at_midf.com

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Received on Thu Sep 04 2003 - 12:19:25 CDT