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From: Anton Shepelev <anton.txt@g{oogle}mail.com>
Newsgroups: comp.databases.ms-sqlserver
Subject: Re: Make a backup only if necessary
Date: Mon, 27 May 2024 13:53:02 +0300
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I wrote

> I want to make sure that my differential backups are not
> useless.  One solution is to compare byte-for-byte each
> new diff. backup with the previous one, and delete the
> copy if it turn out redundant, but I wondered if there
> were a simpler method.

Nope -- no two differential backup files compare equal.

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