1. 登录sysdba用户
sqlplus / as sysdba
2. 方法一：v$version
SQL> select * from v$version;
3.
方法二：product_component_version
SQL> select * from product_component_version;
4. 方法三：dbms_output.put_line( dbms_db_version.version )
SQL> SET SERVEROUTPUT ON
SQL> EXEC dbms_output.put_line( dbms_db_version.version );