Preamble
Oracle/PLSQL USERENV function is used to get information about the current Oracle session. Although this function still exists in Oracle for backward compatibility, it is recommended to use the sys_context function instead.
Oracle/PLSQL function syntax USERENV
USERENV( parameter_id )
Parameters or arguments
- parameter_id – value returned from the current Oracle session.
Possible values:
| Parameter | Explanation |
| CLIENT_INFO | Returns user session information saved using the DBMS_APPLICATION_INFO package |
| ENTRYID | Available audit record identifier |
| INSTANCE | Identification number of the current copy |
| ISDBA | Returns TRUE if the user has DBA privileges. Otherwise, it will return FALSE |
| LANG | ISO shortening for language |
| LANGUAGE | Language, territory and character of the session in the following format: language_territory.characterset |
| SESSIONID | Audit session identifier |
| TERMINAL | Current session OS Identifier |
The USERENV function can be used in the following versions of Oracle/PLSQL
Oracle 12c, Oracle 11g, Oracle 10g, Oracle 9i, Oracle 8i
Let’s consider some examples of Oracle USERENV function and learn how to use USERENV function in Oracle PLSQL.
SELECT USERENV('LANGUAGE')
FROM DUAL;
--Result: RUSSIAN_CIS.CL8MSWIN1251
SELECT USERENV('ISDBA')
FROM DUAL;
--Result: FALSE
SELECT USERENV('SESSIONID')
FROM DUAL;
--Result: 661480038
SELECT USERENV('LANG')
FROM DUAL;
--Result: RU
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