To create keyboard shortcuts (keybindings) or to modify existing ones, go to the File menu in VS Code and select Preferences->Keyboard Shortcuts

In the search text box, enter a portion of the name of the extension whose shortcut you would like to modify, for example "oracle".

A list of commands and their shortcuts will appear. Click the pencil icon on the left side of a row to edit a shortcut, or the plus (+) sign to create a new one.

When prompted, enter the key combination and if it is not being used by another extension, press enter. If it is being used by another extension, press escape and try again.

To delete a shortcut, right click on the shortcut and select Remove Keybinding