Oracle / PLSQL: Retrieve the name of the Oracle instance currently connected to
Question: How can I get the name of the Oracle database instance that I'm connected to through a SQL statement?
Answer: You can retrieve the instance name and database name using the sys_context function.
Instance Name
To retrieve the Oracle instance name, you execute the following SQL statement:
SELECT sys_context('USERENV','INSTANCE_NAME') AS Instance
FROM dual;
It should return something like this:
INSTANCE -------------------------------------------------------------------------------------- TOTN
Database Name
You could also retrieve the Oracle database name with the following SQL statement:
SELECT sys_context('USERENV','DB_NAME') AS Database_Name
FROM dual;
It should return something like this:
DATABASE_NAME -------------------------------------------------------------------------------------- DBPROD
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