SQL & PL/SQL :: Terminate Script If Remote Database Is Down?

Sep 19, 2011

I have a simple script which fetch data from another SQL server database.

The remote SQL Server database is accessed by oracle thru gateway, and a simple DB link is made in local database to the remote oracle datbase (which actually access the MS SQL Server)

The SQL script empties all the data in local database, and fills it with the fresh data from MS SQL server.

Problem is sometimes SQL Server is down, and i lose all the data in local database. The script runs automatically as schedualed job. I want to make my script intelligent enough to terminate the script if the other database is down.

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Command Won't Terminate Current Sessions To Database

Aug 23, 2010

lsnrctl RELOAD [listener_name] Hope the above command wont terminate the current sessions to the database.

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Jan 7, 2011

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Nov 20, 2012

I want to update my table base on changes in a column of a table from remote database automatically. I just want to pick some updated column then update to my own. i have made a trigger but failed.

CREATE OR REPLACE
TRIGGER TG_UPD_ID
after update OF STUD_ID on STUDENT@SCHOOLDB
for each row
begin

update MARKS set ID_ST = :new.STUD_ID where STUDID_STUDENT = :old.IDS;

end;

Error report:
ORA-02021: DDL operations are not allowed on a remote database
02021. 00000 - "DDL operations are not allowed on a remote database"
*Cause: An attempt was made to use a DDL operation on a remote database.

For example, "CREATE TABLE tablename@remotedbname ...".

*Action: To alter the remote database structure, you must connect to the remote database with the appropriate privileges.

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Nov 21, 2011

I have 2 database . One is production and other is Integration and I have one table "emp" which is on integration server and a synonym of that table with the same name"emp" on production. On production we have a proc in which we are using "emp", but some time our integration server goes down, so is there any way to ping the integration server inside the proc and if it returns success then we will execute the rest of code of proc , otherwise it will send a mail to us saying that integration server is down.

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Sep 3, 2009

I installed oracle 10g and developed simple software using forms 6i. Its working well as a stand alone system.

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When i try to connect with user name and password , it comes ORA-12203 Unable to connect to destination. I checked LSNRCTL in the database machine, it is listening.

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Feb 16, 2010

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Any other way to get a list of remote dependencies other then manual checking.

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Jul 24, 2011

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I can do a select statement on those tables from 'SQL Query statement' in data model.

Error is generated only if I try to use those tables in 'Formula' or in function/procedure.

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Jul 19, 2013

I am trying to connect to a database located at my work from at home. I am running into the following issue (see command and error below):

ansichart@ansivm:~/src/perl$ sqlplus aspxdba/********@aspxp2 SQL*Plus: Release 11.2.0.3.0 Production on Thu Jul 18 21:15:09 2013 Copyright (c) 1982, 2011, Oracle. 

All rights reserved. ERROR:ORA-12545: Connect failed because target host or object does not exist-- Here is my tnsnames.ora file (I have the service_name censored out for privacy reasons):-

ansichart@ansivm:~/src/perl$ cat $ORACLE_HOME/network/admin/tnsnames.oraaspxp2 =  (DESCRIPTION =    (ADDRESS_LIST =      (ADDRESS = (PROTOCOL = TCP)(HOST = orarac9-scan)(PORT = 1521))    )  (CONNECT_DATA =(SERVICE_NAME = *****************)(UR=A)    )  )-

I have verified that I can establish a TCP connection to this DB server on the port specified, using the same info from the TNSnames.ora file (see below):-

---ansichart@ansivm:~/src/perl$ nmap -sT -p 1521 orarac9-scan Starting Nmap 5.21 (URL.... ) at 2013-07-18 20:53 CDTNmap scan report for orarac9-scan (10.1.13.115)Host is up (0.0088s latency).PORT     STATE SERVICE1521/tcp open  oracle Nmap done: 1 IP address (1 host up) scanned in 0.09 secondsansichart@ansivm:~/src/perl$--

 I have another terminal opened up to a server at work and I can connect to the DB with sqlplus just fine.  I verified that the record for this database on the tnsnames.ora file is the same as it is at work. In conclusion, I can connect to the Database at work, but I cannot at home, even though I am using the same connection information and verified that port 1521 is accessible on this Database server from at home.  So why can't I establish a DB connection? 

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Nov 23, 2012

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Apr 5, 2010

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e.g. if mydb1 (located on another database server on network)

sqlplus username/password

i am able to do this on local database but not on the remote database

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May 13, 2010

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Jun 16, 2010

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If I call this function from a remote database, I have this error message:

"ORA-14551: cannot perform a DML operation inside a query".

select function('parameter') from dual;

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Mar 12, 2009

I have created ".sql" script in Unix and I am trying to execute the script at SQL prompt. But I am getting the following error message after getting the output.

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Disconnected from Oracle Database 10g Enterprise Edition

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Jan 24, 2013

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Apr 9, 2013

There are 2 Oracle databases with pseudo names Remote and Local. I have a function in Remote called FUS.F_Return_10 which simply returns 10 for testing purposes, where FUS is a schema name. In Local I want to create a procedure that will call the above function. Here's the PL/SQL:

CREATE OR REPLACE PROCEDURE TEST
(
V_COUNT OUT NUMBER
)
AS
V_FOO NUMBER(2,0);
BEGIN

[Code]...

There's a Public Database Link called PER_ACC in Local. When I try to create this procedure I get: Encountered symbol "@" when expecting one of the following: .(*%&................

where my mistake is?

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May 21, 2010

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May 22, 2013

I have created a function for knowing the status of link which connect me with remote database.function is as follows

---------------------------------------------------------------------------------------------
CREATE OR REPLACE FUNCTION get_status_db_link (p_db_link_in VARCHAR2)
RETURN NUMBER AS
rows NUMBER;
v_code NUMBER;
v_errm VARCHAR2(64);
[code]....

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Feb 18, 2011

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Jun 11, 2011

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Aug 30, 2012

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Nov 19, 2008

We have eight servers. One of them is for centeral management. The other seven is for development and test databases. Every night, we start a process which exports database schemas (without data) into the centeral server. An example of the process we run is just like below:

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Feb 23, 2012

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INSERT INTO PRIMUS(PARTNO,
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Jan 8, 2013

while testing SYS remote connection in our staging server. Executing the command below is OK:

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sqlplus sys@sales as sysdba
Enter password:
ERROR:
ORA-01017: Message 1017 not found; No message file for product=RDBMS,
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ERROR:
Error while trying to retrieve text for error ORA-01017

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Mar 15, 2011

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for e.g.

a := get_remote_connection; --- Calling function for check remote connection return boolean
if a then
<call my data_transfer_proc>
else
exit;
end if;
reply.

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Feb 21, 2011

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