For Windows;
Press Windows button + R and press cmd then click "OK".
Write down "sqlplus -version" and press enter
For Linux;
Open Terminal and write down "sqlplus -version" and press enter
e.g.
SQL*Plus: Release 11.2.0.2.0 Production
Press Windows button + R and press cmd then click "OK".
Write down "sqlplus -version" and press enter
For Linux;
Open Terminal and write down "sqlplus -version" and press enter
e.g.
SQL*Plus: Release 11.2.0.2.0 Production