Execute the following query and find out the Database session
SQL> select a.spid server, b.process client, b.username,b.status
from v$process a , v$session b
where (a.addr = b.paddr)
and b.username is not null
order by a.spid asc; 2 3 4 5
SERVER CLIENT USERNAME STATUS
------------------------ ------------------------ ------------------------------ --------
14674 2868:6052 SYS INACTIVE
14679 2868:4792 SYS INACTIVE
14754 14753 SYS ACTIVE
SQL>
Execute the following command and find out the OS process mapping with Database session
[oracle@saidrasel ~]$ ps -auxww | grep $ORACLE_SID | grep LOCAL
oracle 14674 0.0 1.0 1682420 48532 ? Ss 11:13 0:00 oracleorcl (LOCAL=NO)
oracle 14679 0.0 0.4 1679844 21852 ? Ss 11:13 0:00 oracleorcl (LOCAL=NO)
oracle 14754 0.0 0.4 1679844 23068 ? Ss 11:20 0:00 oracleorcl (DESCRIPTION=(LOCAL=YES)(ADDRESS=(PROTOCOL=beq)))
[oracle@saidrasel ~]$
Now create three new connection in Database and execute the query
SQL> select a.spid server, b.process client, b.username,b.status
from v$process a , v$session b
where (a.addr = b.paddr)
and b.username is not null
order by a.spid asc 2 3 4 5 ;
SERVER CLIENT USERNAME STATUS
------------------------ ------------------------ ------------------------------ --------
14674 2868:6052 SYS INACTIVE
14679 2868:4792 SYS INACTIVE
14754 14753 SYS ACTIVE
14785 2868:4792 SAID INACTIVE
14787 2868:4792 SAID INACTIVE
14790 3944:3764 RASEL INACTIVE
6 rows selected.
SQL>
Now find the these Database session from OS process also
[oracle@saidrasel ~]$ ps -auxww | grep $ORACLE_SID | grep LOCAL
oracle 14674 0.0 1.0 1682420 48540 ? Ss 11:13 0:00 oraclestlbas (LOCAL=NO)
oracle 14679 0.0 0.4 1679844 21852 ? Ss 11:13 0:00 oraclestlbas (LOCAL=NO)
oracle 14754 0.0 0.4 1679844 23096 ? Ss 11:20 0:00 oraclestlbas (DESCRIPTION=(LOCAL=YES)(ADDRESS=(PROTOCOL=beq)))
oracle 14785 0.1 0.8 1682420 40408 ? Ss 11:23 0:00 oraclestlbas (LOCAL=NO)
oracle 14787 0.1 0.8 1680868 42848 ? Ss 11:23 0:00 oraclestlbas (LOCAL=NO)
oracle 14790 0.0 0.4 1679844 22528 ? Ss 11:23 0:00 oraclestlbas (LOCAL=NO)
[oracle@saidrasel ~]$
SQL> select a.spid server, b.process client, b.username,b.status
from v$process a , v$session b
where (a.addr = b.paddr)
and b.username is not null
order by a.spid asc; 2 3 4 5
SERVER CLIENT USERNAME STATUS
------------------------ ------------------------ ------------------------------ --------
14674 2868:6052 SYS INACTIVE
14679 2868:4792 SYS INACTIVE
14754 14753 SYS ACTIVE
SQL>
Execute the following command and find out the OS process mapping with Database session
[oracle@saidrasel ~]$ ps -auxww | grep $ORACLE_SID | grep LOCAL
oracle 14674 0.0 1.0 1682420 48532 ? Ss 11:13 0:00 oracleorcl (LOCAL=NO)
oracle 14679 0.0 0.4 1679844 21852 ? Ss 11:13 0:00 oracleorcl (LOCAL=NO)
oracle 14754 0.0 0.4 1679844 23068 ? Ss 11:20 0:00 oracleorcl (DESCRIPTION=(LOCAL=YES)(ADDRESS=(PROTOCOL=beq)))
[oracle@saidrasel ~]$
Now create three new connection in Database and execute the query
SQL> select a.spid server, b.process client, b.username,b.status
from v$process a , v$session b
where (a.addr = b.paddr)
and b.username is not null
order by a.spid asc 2 3 4 5 ;
SERVER CLIENT USERNAME STATUS
------------------------ ------------------------ ------------------------------ --------
14674 2868:6052 SYS INACTIVE
14679 2868:4792 SYS INACTIVE
14754 14753 SYS ACTIVE
14785 2868:4792 SAID INACTIVE
14787 2868:4792 SAID INACTIVE
14790 3944:3764 RASEL INACTIVE
6 rows selected.
SQL>
Now find the these Database session from OS process also
[oracle@saidrasel ~]$ ps -auxww | grep $ORACLE_SID | grep LOCAL
oracle 14674 0.0 1.0 1682420 48540 ? Ss 11:13 0:00 oraclestlbas (LOCAL=NO)
oracle 14679 0.0 0.4 1679844 21852 ? Ss 11:13 0:00 oraclestlbas (LOCAL=NO)
oracle 14754 0.0 0.4 1679844 23096 ? Ss 11:20 0:00 oraclestlbas (DESCRIPTION=(LOCAL=YES)(ADDRESS=(PROTOCOL=beq)))
oracle 14785 0.1 0.8 1682420 40408 ? Ss 11:23 0:00 oraclestlbas (LOCAL=NO)
oracle 14787 0.1 0.8 1680868 42848 ? Ss 11:23 0:00 oraclestlbas (LOCAL=NO)
oracle 14790 0.0 0.4 1679844 22528 ? Ss 11:23 0:00 oraclestlbas (LOCAL=NO)
[oracle@saidrasel ~]$
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