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Installation of the second SAP system on the same host on Unix


I have to install the second SAP System with Oracle on the same host on Solaris.

Which settings regarding following three points should I meet:

<b>1) oracle software</b>

- do I have here the choice or must I install the second DB software

<b>2) TNS Listener</b>

- which options are possible? two TNS Listener or one TNS Listener with two entries

- should I apply the other port during the SAPINST

<b>3) environment variables, authorizations, users</b>

ORACLE_HOME, ORACLE_SID, SAPDATA_HOME under which account (ora<sid>, <sid>adm)

Thank you very much!



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