Update without using dblinks

Question

Hi All,
Is there a way I can update a row in a table EMP at database "PROD1" with values coming from the table EMP at database "PROD2" without using dblinks?
Assuming all credentials are given like>> table_name@ username/[email protected]:1521/prod2.
Thanks,
Kinz

Answer 1

Kuljeet Pal Singh wrote:
Assuming all credentials are given like>> table_name@ username/[email protected]:1521/prod2.
you can make connectivity with remote database with ezconnect without creating tnsnames entry.
http://www.orafaq.com/wiki/EZCONNECT
but this full syntax(ip address/port) is not possible on sqlplus prompt so you have to make db_link while working with remote database.It is possible from the prompt, but you can also script it:
myprompt$ sqlplus /nolog <<EOF
\> connect mytest/mypass@myhost:1521/TTST.myhost
\> select count(*) from product_master;
\> EOF
SQL*Plus: Release 10.2.0.4.0 - Production on Tue Sep 18 10:33:51 2012
Copyright (c) 1982, 2007, Oracle.  All Rights Reserved.
@> Connected.
mytest@myhost:1521/TTST.myhost>
  COUNT(*)
     11195
mytest@myhost:1521/TTST.myhost> Disconnected from Oracle Database 10g Enterprise Edition Release 10.2.0.4.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
myprompt$So, theoretically you can do all sorts of things with shell scripting, given the OP information. All you need to do is get the information desired into a regular sql script for insertion. Clumsy, so last century, but once common in old stovepipe environments. You could even use old exp/imp this way.
Or am I missing something?