Setting Sql Prompt to that of the connected Host

Question

Hi all,
I work in a multiple Database environment. At times I've various
sessions open in SqlPlus. My problem is its really tedious to
keep track of which host my active window is connected to.
All I want to do is set my sql prompt to that of the Database
alias or my remote host ... (Automatically on Login)
Any suggestions ????

Answer 1

Here's a suggestion from another forum that should help you.
FYI, the next version of iSQL*Plus will have this feature by
default, so you'll always know the user and database to which
you're connected.
Here is how Tom Kyte does it. The following is an excerpt from
a response he gave to a similar question:
I use a login.sql with SQLPlus. I also make sure each and every
database has a unique global name (alter database rename
global_name to <some name>) or unique SID (i like the global
name myself).
In my login.sql i have:
column global_name new_value gname
set termout off
select lower(user) || '@' ||
decode(global_name, 'ORACLE8.WORLD', '8.0', 'ORA8I.WORLD',
'8i', 'ORA8IDEV.WORLD', 'dev8i', global_name ) global_name from
global_name;
set termout on
set sqlprompt '&gname> '
That makes my sqlprompt look like:
ops$[email protected]>
So, now I have my username and database in the prompt. I just
have to remember to use an @connect -- NOT connect when
connecting since the login.sql is run ONCE, not after every
connect. My @connect is simply:
connect &1
@login
If you want to use the ORACLE_SID instead of the global database
name, just "select instance global_name from v$thread" in the
above.