Oracle | Environment Variables

Oracle ENVIRONMENT VARIABLES Version 21c

Library Note

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The best Oracle News for FY2026

Oracle Database 26ai will be available on generic Linux platforms in January and soon on AIX and Windows

Product Homes

Query to identify home directories for Oracle products SELECT sys_context('USERENV', 'ORACLE_HOME') FROM dual; SYS_CONTEXT('USERENV','ORACLE_HOME') ------------------------------------------ /u01/app/oracle/product/21.0.0.0/dbhome_1

Version and Release Number

Version and Release Number Demo SQL> DEFINE _O_VERSION DEFINE _O_VERSION = "Oracle Database 21c Enterprise Edition Release 21.0.0.0.0 - Production Version 21.1.0.0.0" (CHAR) SQL> DEFINE _O_RELEASE DEFINE _O_RELEASE = "2101000000" (CHAR)