Re: ok for the last 18 yrs in using oracle I must have been asleep, "implied database link"

In my mind, if someone is doing such things in code, this is probably a bad 
practice. Also I'm not sure it's a great idea from a security point-of-view to 
allow such things. Anyone else have any thoughts here?

RF


 Robert G. Freeman
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________________________________
From: "TESTAJ3@xxxxxxxxxxxxxx" <TESTAJ3@xxxxxxxxxxxxxx>
To: oracle-l@xxxxxxxxxxxxx
Sent: Wed, February 17, 2010 1:15:18 PM
Subject: ok for the last 18 yrs in using oracle I must have been asleep, 
"implied database link"


Ok so a co-worker asks a question about
an implied database link, i'm like "huh".

so a database link is NOT created in the source database but the userid/password
are the same in both source and destination.

take for example 

system on db1 and db2 has a password of x12345.

I do a select count(*) from dba_users@db2 while connected on db1 and it
connects and returns a result set w/o a db link being created.

I've been enlightened again of something new about oracle.

so the question posed is, for a named db link you do "close"
it, how do you close an implied link?

joe 
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