Secondary database connections

Question

I am looking for information on Secondary database connections, especially with Oracle. Is there any other information than note 323151 (I am using the MiniSAP system for testing, therefor I do not have an official SAP customer status).
I found something about this on help.sap.com, but this is more like an overview. I am looking for some examples on what to configure and how to use it.
Any help would be appreciated.
Thanks

Answer 1

Hi Klaus,
You need to prepare entries in the TNSNAME.ORA file (on the Oracle database server). The systemguys will know where to find it.
Oracle File TNSNAMES.ORA (contains also the lines below)
texd.world = (DESCRIPTION = (ADDRESS = (COMMUNITY = tcp.world)
             (PROTOCOL = TCP) (Host = <servername>) (Port = 1521))
             (CONNECT_DATA = (SID = <SID>) (GLOBAL_NAME = texd.world)
             (SERVER = DEDICATED)))
Replace <servername> with the actual servername of the oracle database.
Replace <SID> with the SAP system ID (Like DEV for development or PRD for production).
In SAP use transactiom SM30 to maintain table DBCON.
Give the connection a name (this is used in your code). Example = MYCONNECTION.
Set DBMS to ORA.
Set the username to a user with sufficient rights
Supply (2x) the password for this user
Set the Verb.info to textd.world
Do NOT check (leave unchecked) the Permanent checkbox.
Save your work.
In ABAP code you can connect to and use this connection like this:
Declaration
DATA: WA TYPE T000.
Init connection
EXEC sql.
connect to 'MYCONNECTION' as 'MYDB'
ENDEXEC.
Open connection
EXEC sql.
SET CONNECTION 'MYDB'
ENDEXEC.
Do your trick
EXEC sql PERFORMING your_form.
SELECT * INTO :WA FROM T000.
ENDEXEC.
Stop connection
EXEC sql.
disconnect 'MYDB'
ENDEXEC.
FORM your_form.
  WRITE: / wa-mandt, wa-mtext.
ENDFORM.
Further information on using this (beside note 323151) can be found on notes 339092, 323151 and 178949.
See also http://www.akadia.com/services/ora_dblinks.html
Hope this helps you on your way.
Regards,
Rob.