{"id":527,"date":"2011-11-02T11:20:00","date_gmt":"2011-11-02T11:20:00","guid":{"rendered":"\/blogs\/paul\/post\/Code-to-list-index-counts-per-table.aspx"},"modified":"2019-06-10T14:02:10","modified_gmt":"2019-06-10T21:02:10","slug":"code-to-list-index-counts-per-table","status":"publish","type":"post","link":"https:\/\/www.sqlskills.com\/blogs\/paul\/code-to-list-index-counts-per-table\/","title":{"rendered":"Code to list index counts per table"},"content":{"rendered":"<p>Yesterday I blogged about how having too few or too many nonclustered indexes can be a big problem for performance (see <a href=\"https:\/\/www.sqlskills.com\/blogs\/paul\/over-and-under-indexing-how-bad-is-it-out-there\/\" target=\"_blank\" rel=\"noopener noreferrer\">here<\/a>). Today I&#8217;m posting some code you can run which will print out the number of indexes for each table in each database on an instance.<\/p>\n<p>I made it print a result set per database so the table in msdb doesn&#8217;t get too big having to store schema and object names. You can get the code below and here: <a href=\"https:\/\/www.sqlskills.com\/blogs\/paul\/wp-content\/uploads\/2011\/11\/ncindexcounts.zip\">NCIndexCounts.zip (870.00 bytes)<\/a>.<\/p>\n<p>I also created a version that *does* store names and prints a single result set. You can get that one here: <a href=\"https:\/\/www.sqlskills.com\/blogs\/paul\/wp-content\/uploads\/2011\/11\/ncindexcountssingleresultset.zip\">NCIndexCountsSingleResultSet.zip (1.41 kb)<\/a>.<\/p>\n<p>There&#8217;s probably a niftier way to do this but I&#8217;m not a T-SQL expert :-)<\/p>\n<p>Enjoy!<\/p>\n<pre class=\"brush: sql; title: ; toolbar: true; wrap-lines: true; notranslate\" title=\"\">\r\n\/*============================================================================\r\nFile:\u00a0\u00a0\u00a0\u00a0 NCIndexCounts.sql\r\n\r\n\u00a0 Summary:\u00a0 Nonclustered index counts (multiple result sets)\r\n\r\n\u00a0 SQL Server Versions: 2005 onwards\r\n------------------------------------------------------------------------------\r\nWritten by Paul S. Randal, SQLskills.com\r\n\r\n\u00a0 (c) 2011, SQLskills.com. All rights reserved.\r\n\r\nFor more scripts and sample code, check out https:\/\/www.SQLskills.com\r\n\r\nYou may alter this code for your own *non-commercial* purposes. You may\r\nrepublish altered code as long as you include this copyright and give due\r\ncredit, but you must obtain prior permission before blogging this code.\r\n\r\nTHIS CODE AND INFORMATION ARE PROVIDED &quot;AS IS&quot; WITHOUT WARRANTY OF\r\nANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED\r\nTO THE IMPLIED WARRANTIES OF MERCHANTABILITY AND\/OR FITNESS FOR A\r\nPARTICULAR PURPOSE.\r\n============================================================================*\/\r\n\r\nIF EXISTS (SELECT * FROM msdb.sys.objects WHERE &#x5B;name] = 'SQLskillsPaulsIndexCounts')\r\nDROP TABLE msdb.dbo.SQLskillsPaulsIndexCounts;\r\nGO\r\nCREATE TABLE msdb.dbo.SQLskillsPaulsIndexCounts (\r\nSchemaID INT,\r\nObjectID INT,\r\nBaseType CHAR (10),\r\nIndexCount SMALLINT);\r\nGO\r\n\r\nEXEC sp_MSforeachdb\r\nN'IF EXISTS (SELECT 1 FROM (SELECT DISTINCT &#x5B;name]\r\nFROM sys.databases WHERE &#x5B;state_desc] = ''ONLINE''\r\nAND &#x5B;database_id] &gt; 4\r\nAND &#x5B;name] != ''pubs''\r\nAND &#x5B;name] != ''Northwind''\r\nAND &#x5B;name] != ''distribution''\r\nAND &#x5B;name] NOT LIKE ''ReportServer%''\r\nAND &#x5B;name] NOT LIKE ''Adventure%'') AS names WHERE &#x5B;name] = ''?'')\r\nBEGIN\r\nUSE &#x5B;?]\r\nINSERT INTO msdb.dbo.SQLskillsPaulsIndexCounts\r\nSELECT o.&#x5B;schema_id], o.&#x5B;object_id], ''Heap'', 0\r\nFROM sys.objects o\r\nWHERE o.&#x5B;type_desc] IN (''USER_TABLE'', ''VIEW'')\r\nAND o.&#x5B;is_ms_shipped] = 0\r\nAND EXISTS (\r\nSELECT *\r\nFROM sys.indexes\r\nWHERE &#x5B;index_id] = 0\r\nAND &#x5B;object_id] = o.&#x5B;object_id]);\r\n\r\nINSERT INTO msdb.dbo.SQLskillsPaulsIndexCounts\r\nSELECT o.&#x5B;schema_id], o.&#x5B;object_id], ''Clustered'', 0\r\nFROM sys.objects o\r\nWHERE o.&#x5B;type_desc] IN (''USER_TABLE'', ''VIEW'')\r\nAND o.&#x5B;is_ms_shipped] = 0\r\nAND EXISTS (\r\nSELECT *\r\nFROM sys.indexes\r\nWHERE &#x5B;index_id] = 1\r\nAND &#x5B;object_id] = o.&#x5B;object_id]);\r\n\r\nUPDATE msdb.dbo.SQLskillsPaulsIndexCounts\r\nSET &#x5B;IndexCount] = (\r\nSELECT COUNT (*)\r\nFROM sys.indexes i\r\nWHERE i.object_id = &#x5B;ObjectID]\r\nAND i.&#x5B;is_hypothetical] = 0)\r\n\r\nIF EXISTS (SELECT * FROM msdb.dbo.SQLskillsPaulsIndexCounts)\r\nSELECT\r\n''?'' AS &#x5B;Database],\r\nSCHEMA_NAME (&#x5B;SchemaID]) AS &#x5B;Schema],\r\nOBJECT_NAME (&#x5B;ObjectID]) AS &#x5B;Table],\r\n&#x5B;BaseType],\r\n(CASE\r\nWHEN &#x5B;IndexCount] = 0 THEN 0\r\nELSE &#x5B;IndexCount]-1 END)\r\nAS &#x5B;NCIndexes]\r\nFROM msdb.dbo.SQLskillsPaulsIndexCounts\r\nORDER BY &#x5B;BaseType] DESC, IndexCount;\r\n\r\nTRUNCATE TABLE msdb.dbo.SQLskillsPaulsIndexCounts;\r\nEND';\r\nGO\r\n\r\nDROP TABLE msdb.dbo.SQLskillsPaulsIndexCounts;\r\nGO\r\n<\/pre>\n","protected":false},"excerpt":{"rendered":"<p>Yesterday I blogged about how having too few or too many nonclustered indexes can be a big problem for performance (see here). Today I&#8217;m posting some code you can run which will print out the number of indexes for each table in each database on an instance. I made it print a result set per [&hellip;]<\/p>\n","protected":false},"author":5,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[38,47,66],"tags":[],"class_list":["post-527","post","type-post","status-publish","format-standard","hentry","category-example-scripts","category-indexes-from-every-angle","category-performance-tuning"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Code to list index counts per table - Paul S. Randal<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.sqlskills.com\/blogs\/paul\/code-to-list-index-counts-per-table\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Code to list index counts per table - Paul S. Randal\" \/>\n<meta property=\"og:description\" content=\"Yesterday I blogged about how having too few or too many nonclustered indexes can be a big problem for performance (see here). Today I&#8217;m posting some code you can run which will print out the number of indexes for each table in each database on an instance. I made it print a result set per [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.sqlskills.com\/blogs\/paul\/code-to-list-index-counts-per-table\/\" \/>\n<meta property=\"og:site_name\" content=\"Paul S. 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