From oracle-l-bounce@freelists.org Wed Mar 3 11:00:18 2004 Return-Path: Received: from air189.startdedicated.com (root@localhost) by orafaq.com (8.11.6/8.11.6) with ESMTP id i23H0IL23433 for ; Wed, 3 Mar 2004 11:00:18 -0600 X-ClientAddr: 206.53.239.180 Received: from turing.freelists.org (freelists-180.iquest.net [206.53.239.180]) by air189.startdedicated.com (8.11.6/8.11.6) with ESMTP id i23Gxqo23063 for ; Wed, 3 Mar 2004 10:59:54 -0600 Received: from turing (localhost [127.0.0.1]) by turing.freelists.org (Avenir Technologies Mail Multiplex) with ESMTP id 1D36939563F; Wed, 3 Mar 2004 11:56:53 -0500 (EST) Received: with ECARTIS (v1.0.0; list oracle-l); Wed, 03 Mar 2004 11:55:34 -0500 (EST) X-Original-To: oracle-l@freelists.org Delivered-To: oracle-l@freelists.org Received: from ahmler1.mail.eds.com (ahmler1.mail.eds.com [192.85.154.71]) by turing.freelists.org (Avenir Technologies Mail Multiplex) with ESMTP id 6DC7B39516E for ; Wed, 3 Mar 2004 11:55:25 -0500 (EST) Received: from ahmlir1.mail.eds.com (ahmlir1-2.mail.eds.com [192.85.154.131]) by ahmler1.mail.eds.com (8.12.10/8.12.9) with ESMTP id i23GxFY3017702 for ; Wed, 3 Mar 2004 11:59:15 -0500 Received: from ahmlir1.mail.eds.com (localhost [127.0.0.1]) by ahmlir1.mail.eds.com (8.12.10/8.12.10) with ESMTP id i23GwYEx011077 for ; Wed, 3 Mar 2004 11:58:34 -0500 Received: from USAHM101.amer.corp.eds.com ([207.37.138.189]) by ahmlir1.mail.eds.com (8.12.10/8.12.10) with ESMTP id i23GwYaw011072 for ; Wed, 3 Mar 2004 11:58:34 -0500 Received: by USAHM101.amer.corp.eds.com with Internet Mail Service (5.5.2657.72) id ; Wed, 3 Mar 2004 11:58:20 -0500 Message-ID: <564DE4477544D411AD2C00508BDF0B6A1CE0AA24@USAHM018.amer.corp.eds.com> From: "Powell, Mark D" To: "'oracle-l@freelists.org'" Subject: RE: Is it possible to do "select count(*) from sapr3.zpayr@QA2;" Date: Wed, 3 Mar 2004 11:58:16 -0500 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2657.72) Content-Type: text/plain; charset="iso-8859-1" X-archive-position: 192 X-ecartis-version: Ecartis v1.0.0 Sender: oracle-l-bounce@freelists.org Errors-To: oracle-l-bounce@freelists.org X-original-sender: mark.powell@eds.com Precedence: normal Reply-To: oracle-l@freelists.org X-list: oracle-l See the Oracle version# Reference Manual @UT1 SQL>> desc dba_db_links Name Null? Type ----------------------------------------- -------- ---------------------------- OWNER NOT NULL VARCHAR2(30) DB_LINK NOT NULL VARCHAR2(128) USERNAME VARCHAR2(30) HOST VARCHAR2(2000) CREATED NOT NULL DATE -- Mark -- -----Original Message----- From: oracle-l-bounce@freelists.org [mailto:oracle-l-bounce@freelists.org]On Behalf Of Roger Xu Sent: Wednesday, March 03, 2004 11:34 AM To: oracle-l@freelists.org Subject: RE: Is it possible to do "select count(*) from sapr3.zpayr@QA2;" Thank you for the advice. So how do I find out all the database links? Is there a V$ view or dba_ view? -----Original Message----- From: Mark Richard [mailto:mrichard@transurban.com.au] Sent: Tuesday, March 02, 2004 8:42 PM To: oracle-l@freelists.org Subject: RE: Is it possible to do "select count(*) from sapr3.zpayr@QA2;" I would just keep in mind the security implications of this. You are effectively allowing full control to the remote database to anyone connected to the primary database since the password is remembered. Having said that if the username/password combination is "system/manager" then this additional security risk may not be such a problem. >From a performance / resource point of view there is no problem though and I do keep database links between several development / testing environments for moving data around quickly. I wouldn't keep one with full access to production though. Regards, Mark. "Justin Cave (DDBC)" To: Subject: RE: Is it possible to do "select count(*) from sapr3.zpayr@QA2;" Sent by: oracle-l-bounce@fr eelists.org 03/03/2004 09:42 Please respond to oracle-l I would generally keep the database link around if you think you may want to use it again in the future. It's not going to consume an appreciable amount of resources if no one is using it. Justin Cave Distributed Database Consulting, Inc. http://www.ddbcinc.com -----Original Message----- From: oracle-l-bounce@freelists.org [mailto:oracle-l-bounce@freelists.org] Sent: Tuesday, March 02, 2004 3:34 PM To: oracle-l@freelists.org Subject: RE: Is it possible to do "select count(*) from sapr3.zpayr@QA2;" Cool. It works. So do I need to do "delete database link qa2" to clean up? Thanks. --Roger -----Original Message----- From: oracle-l-bounce@freelists.org [mailto:oracle-l-bounce@freelists.org] Sent: Tuesday, March 02, 2004 4:10 PM To: oracle-l@freelists.org Subject: RE: Is it possible to do "select count(*) from sapr3.zpayr@QA2;" While connected to pr2: create database link qa2 connect to system identified by manager using 'qa2'; That's one option. There are other variations on database links. See the manual for more details. -Mark -----Original Message----- From: Roger Xu [mailto:roger_xu@dp7uptx.com] Sent: Tuesday, March 02, 2004 5:07 PM To: oracle-l@freelists.org Subject: RE: Is it possible to do "select count(*) from sapr3.zpayr@QA2;" How to do it? Is there a document or links? Thanks. -----Original Message----- From: Igor Neyman [mailto:ineyman@perceptron.com] Sent: Tuesday, March 02, 2004 4:01 PM To: oracle-l@freelists.org Subject: RE: Is it possible to do "select count(*) from sapr3.zpayr@QA2;" You need a database link created between PR2 and QA2. Igor Neyman, OCP DBA ineyman@perceptron.com -----Original Message----- From: oracle-l-bounce@freelists.org [mailto:oracle-l-bounce@freelists.org] On Behalf Of Roger Xu Sent: Tuesday, March 02, 2004 4:56 PM To: Oracle-L@Freelists. Org (E-mail) Subject: Is it possible to do "select count(*) from sapr3.zpayr@QA2;" >From SID=PR2, I failed to do the following: SQL> select count(*) from sapr3.zpayr@QA2; select count(*) from sapr3.zpayr@QA2 * ERROR at line 1: ORA-02019: connection description for remote database not found But I can do the following without any problems: sqlplus system@QA2/manager SQL> select count(*) from sapr3.zpayr; Thanks, Roger ************************************************************************ This e-mail is intended solely for the person or entity to which it is addressed and may contain confidential and/or privileged information. Any review, dissemination, copying, printing or other use of this e-mail by persons or entities other than the addressee is prohibited. 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