How to restore the missing PL/SQL object window?

If the PL/SQL Object window is missing, you can try the following methods to restore it:

1. In SQL development tools, you can typically reopen the PL/SQL object window by using either the menu bar or a shortcut key.
2. Check if the PL/SQL Object window tab was accidentally closed, you can try looking for the closed tab in the toolbar or tab bar and reopen it.
3. Restarting the SQL development tool can sometimes help recover lost windows.
4. If none of the above methods work, you can try checking in the software settings to see if there is an option to restore default layout or reset window configuration.

If the above methods still cannot solve the problem, it is recommended to consult the official documentation of the software or contact technical support for further assistance.