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Issuing the DEFINE_EDITOR=”emacs” will produce which outcome?

  1. The emacs editor will become the SQL*Plus default text editor.

  2. The emacs editor will start running immediately.

  3. The emacs editor will no longer be used by SQL*Plus as the default text editor.

  4. The emacs editor will be deleted from the system.
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Defining DEFINE_EDITOR in SQL*Plus sets the default text editor used by the EDIT command. Therefore, setting it to 'emacs' makes emacs the default editor for editing SQL buffers, but does not start it immediately.

AI explanation

To answer this question, you need to understand the purpose of the DEFINE_EDITOR parameter in SQL*Plus.

The DEFINE_EDITOR parameter in SQL*Plus is used to define the default text editor that SQL*Plus will use for editing commands or scripts. By default, SQL*Plus uses the operating system's default text editor.

Based on this information, let's go through each option to understand why it is correct or incorrect:

Option A) The emacs editor will become the SQL*Plus default text editor. This option is correct because issuing the DEFINE_EDITOR="emacs" command will set the emacs editor as the default text editor for SQL*Plus. This means that when you use the "EDIT" command in SQL*Plus, it will open the specified command or script in the emacs editor.

Option B) The emacs editor will start running immediately. This option is incorrect. Issuing the DEFINE_EDITOR="emacs" command does not start the emacs editor immediately. It only sets it as the default text editor for SQL*Plus.

Option C) The emacs editor will no longer be used by SQL*Plus as the default text editor. This option is incorrect. Issuing the DEFINE_EDITOR="emacs" command actually sets the emacs editor as the default text editor for SQL*Plus, so it will continue to be used as the default editor.

Option D) The emacs editor will be deleted from the system. This option is incorrect. Issuing the DEFINE_EDITOR="emacs" command does not delete the emacs editor from the system. It only sets it as the default text editor for SQL*Plus.

Therefore, the correct answer is: The emacs editor will become the SQL*Plus default text editor.

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