On the server side, we have loaded following application software:
2. Crystal enterprise 8.0
3. Crystal professional 8.5
4. Lotus client
To connect to a different database you'll need to set up your Network definitions properly. In your %ORACLE_HOME%\network\admin directory, there should be a file called TNSNAMES.ORA. If there is no such file, create one. Otherwise, open it up. Add an entry similar to this in that file:
db_name = (DESCRIPTION = (ADDRESS_LIST = (ADDRESS = (PROTOCOL = TCP) (Host = myhost) (Port = 1521) ) ) (CONNECT_DATA = (SID = db_name) ) )Make sure that you substitute values for "db_name" and "myhost". The SID is your database identifier uniquely identifying your different databases. Put a second entry for your second database similar to the above entry. Then save your TNSNAMES.ORA file.
Once that is done, to connect to a database, try the following from a DOS prompt:
sqlplus username@db_nameThe tool will look up the "db_name" entry in your TNSNAMES.ORA file and use that information to find out how to connect to your database!
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This was first published in April 2002