https://www.sqlserver70.com/tags/copy-only-backup/Recent content in Copy Only Backup on SQL Server ScriptsHugo -- gohugo.ioenSQLServer70.comMon, 20 Apr 2026 00:00:00 +0000https://www.sqlserver70.com/post/sql-server-copy-only-backup-script-dev-restore/Mon, 20 Apr 2026 00:00:00 +0000https://www.sqlserver70.com/post/sql-server-copy-only-backup-script-dev-restore/ <p>A copy-only backup is a special SQL Server backup that is independent of the normal backup sequence. It does not reset the differential base or interrupt the transaction log backup chain, making it the correct choice when you need an ad-hoc backup for a development or test environment restore without affecting production recovery options.</p> <script async src="https://pagead2.googlesyndication.com/pagead/js/adsbygoogle.js?client=ca-pub-1012089347386563" crossorigin="anonymous"></script> <ins class="adsbygoogle" style="display:inline-block;width:728px;height:90px" data-ad-client="ca-pub-1012089347386563" data-ad-slot="8593449130"></ins> <script> (adsbygoogle = window.adsbygoogle || []).push({}); </script> <h2 id="purpose-and-overview">Purpose and Overview</h2> <p>In a standard SQL Server backup strategy, full backups establish a new differential base and log backups form a continuous chain. If you take an unplanned full backup mid-schedule, the next differential backup becomes larger than expected because the base changed. If you take an unplanned log backup, you may break an automated restore chain that depends on log sequence numbers.</p>