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Oracle SQL Net Connections Task

Oracle Tips by Burleson Consulting

The Data Warehouse Development Life Cycle

Establishing SQL*Net Sessions

Wed Sep 14                                                                    

                                                          Page    1

                                                    ram2db Database

                                               Sessions for SQL*Net


SERVER     Oracle user  O/S      User      Machine Program


--------- -----------  ------  -------  ------------------------ 


DEDICATED   SYS        oracle  ram2    sqlplus@ram2 (Pipe Two-Task)         


DEDICATED  OPS$REDDY   risdon  ram2    runform30@ram2 (Pipe Two-Task)      


DEDICATED  GLINT       jones   ram2    sqlplus@ram2 (Pipe Two-Task)        


DEDICATED  OPS$ORACLE  oracle  clt2    sqlplus@clt2 (TNS interface)        


DEDICATED  OPS$JOKE    joke    ram2    ?  @ram2 (TCP Two-Task)          


DEDICATED  OPS$WWRIGHT wwright ram2    runmenu50@ram2 (Pipe Two-Task)      


DEDICATED  OPS$ORACLE  oracle  ensc    sqlplus@ensc (TCP Two-Task)         


DEDICATED  SECTION144  OraUser         C:\PB3\PBSYS030.DLL                 


DEDICATED  OPS$ORACLE  oracle  ram2    sqlplus@ram2 (Pipe Two-Task)        


DEDICATED  OPS$JSTARR  jstarr  ram2    sqlforms30@ram2 (Pipe Two-Task)     


DEDICATED  OPS$WWRIGHT wwright ram2    RUN_USEX@ram2 (Pipe Two-Task)       


12 rows selected.


Here, we see each of the following four types of SQL*Net connections:

*   Pipe Two-task--Used for internal tasks (SQLPLUS /).

*   TNS Interface--Used when connection is made with a v2 service name (SQLPLUS /@ram2)

*   TCP Two-task--Used when connection is made with a v1 connect string (SQLPLUS /@t:ram2:ram2db).

*   PC Connection Task--Denoted by the PC DLL name (c:\pb3\pbsys030.dll = initiated via PowerBuilder DLL).

This is an excerpt from "High Performance Data Warehousing", copyright 1997.

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