https://www.sqlserver70.com/tags/row-locks/Recent content in Row Locks on SQL Server ScriptsHugo -- gohugo.ioenSQLServer70.comThu, 22 Oct 2026 00:00:00 +0000https://www.sqlserver70.com/post/rank-index-contention-with-sys-dm-db-index-operational-stats/Thu, 22 Oct 2026 00:00:00 +0000https://www.sqlserver70.com/post/rank-index-contention-with-sys-dm-db-index-operational-stats/ <p>Once <code>sys.dm_os_wait_stats</code> points to locking, the next question is which index the waits belong to. The script below reads <code>sys.dm_db_index_operational_stats</code> for the current database and ranks each user-table index by its number of row-lock waits. Next to each count it returns the share of row-lock requests that had to wait and the average wait in milliseconds.</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><a href="https://learn.microsoft.com/en-us/sql/relational-databases/system-dynamic-management-objects/sys-dm-db-index-operational-stats-transact-sql?view=sql-server-ver17"><code>sys.dm_db_index_operational_stats</code></a> returns lower-level data access, locking and latching statistics for each partition of a table or index. Because it reports per index, it can tell you which index the row-lock waits belong to.</p>