SELECT SYS_CONTEXT('USERENV', 'DB_NAME') AS DB_NAME FROM DUAL;
SELECT SYS_CONTEXT('USERENV', 'INSTANCE_NAME') AS INSTANCE_NAME FROM DUAL;
SELECT SYS_CONTEXT('USERENV', 'IP_ADDRESS') AS IP_ADDRESS FROM DUAL;
SELECT SYS_CONTEXT('USERENV', 'ISDBA') AS ISDBA FROM DUAL;
SELECT SYS_CONTEXT('USERENV', 'SESSIONID') AS SESSIONID FROM DUAL;
SELECT SYS_CONTEXT('USERENV', 'SID') AS SID FROM DUAL;
SELECT SYS_CONTEXT('USERENV', 'INSTANCE') AS INSTANCE FROM DUAL;
SELECT SYS_CONTEXT('USERENV', 'CURRENT_USER') AS CURRENT_USER FROM DUAL;
SELECT SYS_CONTEXT('USERENV', 'SESSION_USER') AS SESSION_USER FROM DUAL;
SELECT SYS_CONTEXT('USERENV', 'DB_NAME') AS DB_NAME FROM DUAL;
SELECT SYS_CONTEXT('USERENV', 'HOST') AS HOST FROM DUAL;
SELECT SYS_CONTEXT('USERENV', 'OS_USER') AS OS_USER FROM DUAL;
SELECT SYS_CONTEXT('USERENV', 'NETWORK_PROTOCOL') AS NETWORK_PROTOCOL FROM DUAL;

세션정보 출력(v$session, v$process, v$sess_io)

SELECT   
         s.module "Module",p.spid, p.pid, si.sid,
         s.status "Status", s.serial# "Serial#", s.TYPE "Type",
         s.username "DB User", s.osuser "Client User", s.server "Server",
         s.machine "Machine",  s.client_info "Client Info",
         s.terminal "Terminal", s.program "Program", p.program "O.S. Program",
         s.logon_time "Connect Time", lockwait "Lock Wait",
         si.physical_reads "Physical Reads", si.block_gets "Block Gets",
         si.consistent_gets "Consistent Gets",
         si.block_changes "Block Changes",
         si.consistent_changes "Consistent Changes", s.process "Process",
         s.audsid, s.sql_address "Address",
         s.sql_hash_value "Sql Hash", s.action
    FROM v$session s,
		     v$process p,
		     sys.v_$sess_io si
   WHERE s.paddr = p.addr(+)
     AND si.sid(+) = s.sid
     AND (s.username IS NOT NULL)
     AND (NVL (s.osuser, 'x') <> 'SYSTEM')
     AND (s.TYPE <> 'BACKGROUND')
ORDER BY 1

| Module                                    | SPID  | PID  | SID  | Status   | Serial# | Type | DB User | Client User        | Server    | Machine                   | Client Info | Terminal        | Program                                   | O.S. Program      | Connect Time            | Lock Wait | Physical Reads | Block Gets | Consistent Gets | Block Changes | Consistent Changes | Process   | AUDSID     | Address    | Sql Hash  | ACTION |
| ----------------------------------------- | ----- | ---- | ---- | -------- | ------- | ---- | ------- | ------------------ | --------- | ------------------------- | ----------- | --------------- | ----------------------------------------- | ----------------- | ----------------------- | --------- | -------------- | ---------- | --------------- | ------------- | ------------------ | --------- | ---------- | ---------- | --------- | ------ |
| DBeaver 23?3?1 ? Data transfer producer   | 9948  | 58   | 263  | ACTIVE   | 21837   | USER | SYS     | eh                 | DEDICATED | DESKTOP-1H8J6VA           |             | unknown         | DBeaver 23?3?1 ? Data transfer producer   | ORACLE.EXE (SHAD) | 2024-05-05 05:08:38.000 |           | 0              | 0          | 6               | 0             | 0                  | 1234      | 4294967295 | ���( | 405548178 |        |
| DBeaver 23?3?1 ? Main                     | 13984 | 93   | 630  | INACTIVE | 1457    | USER | SYS     | eh                 | DEDICATED | DESKTOP-1H8J6VA           |             | unknown         | DBeaver 23?3?1 ? Main                     | ORACLE.EXE (SHAD) | 2024-05-05 04:42:02.000 |           | 0              | 0          | 12              | 0             | 0                  | 1234      | 4294967295 |            | 0         |        |
| DBeaver 23?3?1 ? Metadata                 | 10088 | 94   | 751  | INACTIVE | 51175   | USER | SYS     | eh                 | DEDICATED | DESKTOP-1H8J6VA           |             | unknown         | DBeaver 23?3?1 ? Metadata                 | ORACLE.EXE (SHAD) | 2024-05-05 04:42:04.000 |           | 2434           | 0          | 44439           | 0             | 0                  | 1234      | 4294967295 |            | 0         |        |
| DBeaver 23?3?1 ? SQLEditor ?Script?2?sql? | 6468  | 95   | 875  | INACTIVE | 34474   | USER | SYS     | eh                 | DEDICATED | DESKTOP-1H8J6VA           |             | unknown         | DBeaver 23?3?1 ? SQLEditor ?Script?2?sql? | ORACLE.EXE (SHAD) | 2024-05-05 04:42:04.000 |           | 25             | 0          | 8329            | 0             | 0                  | 1234      | 4294967295 |            | 0         |        |
| QueryBox.exe                              | 3580  | 96   | 16   | INACTIVE | 26279   | USER | SYS     | eh                 | DEDICATED | DESKTOP-1H8J6VA           |             | unknown         | QueryBox.exe                              | ORACLE.EXE (SHAD) | 2024-05-05 04:42:32.000 |           | 7              | 0          | 318             | 0             | 0                  | 1234      | 4294967295 |            | 0         |        |
| sqlplus.exe                               | 5160  | 99   | 386  | INACTIVE | 60194   | USER | SYS     | DESKTOP-1H8J6VA\\eh | DEDICATED | WORKGROUP\\DESKTOP-1H8J6VA |             | DESKTOP-1H8J6VA | sqlplus.exe                               | ORACLE.EXE (SHAD) | 2024-05-05 04:43:58.000 |           | 17             | 0          | 161             | 0             | 0                  | 1640:2324 | 4294967295 |            | 0         |        ||

프로세스 정보

SELECT
	a.username,
	a.program,
	a.machine,
	a.module,
	b.spid,
	a.sid,
	a.serial#,
	a.status,
	c.sql_text
FROM
	v$session a,
	v$process b,
	v$sql c
where b.addr = a.paddr
AND a.sql_hash_value = c.hash_value(+)
AND a.sql_address = c.address(+);
| USERNAME                               | PROGRAM                                   | MACHINE                   | MODULE                                    | SPID  | SID  | SERIAL# | STATUS   | SQL_TEXT                                  |
| -------------------------------------- | ----------------------------------------- | ------------------------- | ----------------------------------------- | ----- | ---- | ------- | -------- | ----------------------------------------- |
|                                        | ORACLE.EXE (PMON)                         | DESKTOP-1H8J6VA           |                                           | 9580  | 247  | 13466   | ACTIVE   |                                           |
|                                        | ORACLE.EXE (CLMN)                         | DESKTOP-1H8J6VA           |                                           | 9372  | 370  | 56433   | ACTIVE   |                                           |
|                                        | ORACLE.EXE (PSP0)                         | DESKTOP-1H8J6VA           |                                           | 8832  | 493  | 26359   | ACTIVE   |                                           |
|                                        | ORACLE.EXE (VKTM)                         | DESKTOP-1H8J6VA           |                                           | 9376  | 616  | 49343   | ACTIVE   |                                           |
|                                        | ORACLE.EXE (GEN0)                         | DESKTOP-1H8J6VA           |                                           | 10092 | 739  | 30637   | ACTIVE   |                                           |
|                                        | ORACLE.EXE (MMAN)                         | DESKTOP-1H8J6VA           |                                           | 8916  | 863  | 47403   | ACTIVE   |                                           |
|                                        | ORACLE.EXE (GEN1)                         | DESKTOP-1H8J6VA           |                                           | 9532  | 1    | 17877   | ACTIVE   |                                           |
|                                        | ORACLE.EXE (DIAG)                         | DESKTOP-1H8J6VA           |                                           | 9540  | 124  | 63335   | ACTIVE   |                                           |
|                                        | ORACLE.EXE (DBRM)                         | DESKTOP-1H8J6VA           |                                           | 8912  | 248  | 42968   | ACTIVE   |                                           |
|                                        | ORACLE.EXE (W003)                         | DESKTOP-1H8J6VA           | KTSJ                                      | 6472  | 371  | 52443   | ACTIVE   |                                           |
|                                        | ORACLE.EXE (VKRM)                         | DESKTOP-1H8J6VA           |                                           | 9516  | 494  | 28434   | ACTIVE   |                                           |
|                                        | ORACLE.EXE (SVCB)                         | DESKTOP-1H8J6VA           |                                           | 9524  | 617  | 32770   | ACTIVE   |                                           |
|                                        | ORACLE.EXE (PMAN)                         | DESKTOP-1H8J6VA           |                                           | 9520  | 740  | 64247   | ACTIVE   |                                           |
|                                        | ORACLE.EXE (DIA0)                         | DESKTOP-1H8J6VA           |                                           | 9964  | 864  | 24202   | ACTIVE   |                                           |
|                                        | ORACLE.EXE (DBW0)                         | DESKTOP-1H8J6VA           |                                           | 9684  | 2    | 36420   | ACTIVE   |                                           |
|                                        | ORACLE.EXE (LGWR)                         | DESKTOP-1H8J6VA           |                                           | 10176 | 125  | 41581   | ACTIVE   |                                           |
|                                        | ORACLE.EXE (CKPT)                         | DESKTOP-1H8J6VA           |                                           | 10128 | 249  | 36049   | ACTIVE   |                                           |
|                                        | ORACLE.EXE (LG00)                         | DESKTOP-1H8J6VA           |                                           | 9136  | 372  | 2744    | ACTIVE   |                                           |
|                                        | ORACLE.EXE (SMON)                         | DESKTOP-1H8J6VA           |                                           | 10232 | 495  | 59093   | ACTIVE   |                                           |
|                                        | ORACLE.EXE (LG01)                         | DESKTOP-1H8J6VA           |                                           | 10168 | 618  | 21496   | ACTIVE   |                                           |
|                                        | ORACLE.EXE (SMCO)                         | DESKTOP-1H8J6VA           | KTSJ                                      | 10116 | 741  | 11669   | ACTIVE   |                                           |
|                                        | ORACLE.EXE (RECO)                         | DESKTOP-1H8J6VA           |                                           | 10140 | 865  | 55228   | ACTIVE   |                                           |
|                                        | ORACLE.EXE (W000)                         | DESKTOP-1H8J6VA           | KTSJ                                      | 10132 | 3    | 57827   | ACTIVE   |                                           |
|                                        | ORACLE.EXE (LREG)                         | DESKTOP-1H8J6VA           |                                           | 7696  | 126  | 31537   | ACTIVE   |                                           |
|                                        | ORACLE.EXE (W001)                         | DESKTOP-1H8J6VA           | KTSJ                                      | 13648 | 250  | 1230    | ACTIVE   |                                           |
|                                        | ORACLE.EXE (PXMN)                         | DESKTOP-1H8J6VA           |                                           | 9324  | 373  | 20113   | ACTIVE   |                                           |
|                                        | ORACLE.EXE (MMON)                         | DESKTOP-1H8J6VA           |                                           | 10192 | 619  | 33490   | ACTIVE   |                                           |
|                                        | ORACLE.EXE (MMNL)                         | DESKTOP-1H8J6VA           |                                           | 9316  | 742  | 12600   | ACTIVE   |                                           |
|                                        | ORACLE.EXE (TMON)                         | DESKTOP-1H8J6VA           |                                           | 9288  | 127  | 50352   | ACTIVE   |                                           |
|                                        | ORACLE.EXE (W004)                         | DESKTOP-1H8J6VA           | KTSJ                                      | 4368  | 252  | 47295   | ACTIVE   |                                           |
|                                        | ORACLE.EXE (TT00)                         | DESKTOP-1H8J6VA           |                                           | 6800  | 129  | 52512   | ACTIVE   |                                           |
|                                        | ORACLE.EXE (TT01)                         | DESKTOP-1H8J6VA           |                                           | 6812  | 254  | 41010   | ACTIVE   |                                           |
|                                        | ORACLE.EXE (TT02)                         | DESKTOP-1H8J6VA           |                                           | 7220  | 375  | 59071   | ACTIVE   |                                           |
|                                        | ORACLE.EXE (AQPC)                         | DESKTOP-1H8J6VA           |                                           | 9976  | 497  | 48912   | ACTIVE   |                                           |
|                                        | ORACLE.EXE (W002)                         | DESKTOP-1H8J6VA           | KTSJ                                      | 11600 | 621  | 64568   | ACTIVE   |                                           |
|                                        | ORACLE.EXE (CJQ0)                         | DESKTOP-1H8J6VA           |                                           | 6392  | 866  | 52783   | ACTIVE   |                                           |
|                                        | ORACLE.EXE (Q00A)                         | DESKTOP-1H8J6VA           | Streams                                   | 7352  | 11   | 51991   | ACTIVE   |                                           |
|                                        | ORACLE.EXE (QM02)                         | DESKTOP-1H8J6VA           | Streams                                   | 13368 | 130  | 64198   | ACTIVE   |                                           |
| SYS                                    | DBeaver 23?3?1 ? Main                     | DESKTOP-1H8J6VA           | DBeaver 23?3?1 ? Main                     | 13984 | 630  | 1457    | INACTIVE |                                           |
| SYS                                    | DBeaver 23?3?1 ? Metadata                 | DESKTOP-1H8J6VA           | DBeaver 23?3?1 ? Metadata                 | 10088 | 751  | 51175   | INACTIVE |                                           |
| SYS                                    | DBeaver 23?3?1 ? SQLEditor ?Script?2?sql? | DESKTOP-1H8J6VA           | DBeaver 23?3?1 ? SQLEditor ?Script?2?sql? | 6468  | 875  | 34474   | INACTIVE |                                           |
| SYS                                    | QueryBox.exe                              | DESKTOP-1H8J6VA           | QueryBox.exe                              | 3580  | 16   | 26279   | INACTIVE |                                           |
| SYS                                    | sqlplus.exe                               | WORKGROUP\\DESKTOP-1H8J6VA | sqlplus.exe                               | 5160  | 386  | 60194   | INACTIVE |                                           |