From fe9a1b5533f9e9f8e94d3ed97c4368f2f85117d1 Mon Sep 17 00:00:00 2001
From: Eitan Blumin <eitan@madeiradata.com>
Date: Sun, 27 Oct 2024 21:06:49 +0200
Subject: [PATCH] improved WHERE filter

Author: Nirit Leibovitch
---
 ...d plans using an index and index hints.sql | 37 ++++++++++++++++++-
 1 file changed, 36 insertions(+), 1 deletion(-)

diff --git a/Indexes/Find plans using an index and index hints.sql b/Indexes/Find plans using an index and index hints.sql
index 58e7cf1..ac2772c 100644
--- a/Indexes/Find plans using an index and index hints.sql	
+++ b/Indexes/Find plans using an index and index hints.sql	
@@ -1,5 +1,6 @@
 /*
 Source: https://littlekendra.com/2017/01/24/how-to-find-queries-using-an-index-and-queries-using-index-hints/
+ 20/10/2024		Nirit Leibovitch	Change WHERE clause to include only palce which actually useses the index
 */
 
 /* Search for queries in the execution plan cache using a specific index */
@@ -23,7 +24,7 @@ CROSS APPLY sys.dm_exec_text_query_plan
     as textplan
 CROSS APPLY sys.dm_exec_sql_text(querystats.sql_handle) AS sqltext 
 WHERE 
-    textplan.query_plan like '%PK_Sales_Invoices%'
+    textplan.query_plan like '%Index="![IX_Client!]"%' ESCAPE '!'
 ORDER BY querystats.last_execution_time DESC
 OPTION (RECOMPILE);
 GO
@@ -53,3 +54,37 @@ WHERE
     and UPPER(sqltext.text) like N'%INDEX%'
 OPTION (RECOMPILE);
 GO
+
+
+/*
+Another option:
+Source: https://www.sqlskills.com/blogs/jonathan/finding-what-queries-in-the-plan-cache-use-a-specific-index/
+*/
+
+SET TRANSACTION ISOLATION LEVEL READ UNCOMMITTED
+DECLARE @IndexName AS NVARCHAR(128) = 'PK__TestTabl__FFEE74517ABC33CD';
+
+-- Make sure the name passed is appropriately quoted
+IF (LEFT(@IndexName, 1) <> '[' AND RIGHT(@IndexName, 1) <> ']') SET @IndexName = QUOTENAME(@IndexName);
+--Handle the case where the left or right was quoted manually but not the opposite side
+IF LEFT(@IndexName, 1) <> '[' SET @IndexName = '['+@IndexName;
+IF RIGHT(@IndexName, 1) <> ']' SET @IndexName = @IndexName + ']';
+
+-- Dig into the plan cache and find all plans using this index
+;WITH XMLNAMESPACES
+   (DEFAULT 'http://schemas.microsoft.com/sqlserver/2004/07/showplan')   
+SELECT
+stmt.value('(@StatementText)[1]', 'varchar(max)') AS SQL_Text,
+obj.value('(@Database)[1]', 'varchar(128)') AS DatabaseName,
+obj.value('(@Schema)[1]', 'varchar(128)') AS SchemaName,
+obj.value('(@Table)[1]', 'varchar(128)') AS TableName,
+obj.value('(@Index)[1]', 'varchar(128)') AS IndexName,
+obj.value('(@IndexKind)[1]', 'varchar(128)') AS IndexKind,
+cp.plan_handle,
+query_plan
+FROM sys.dm_exec_cached_plans AS cp
+CROSS APPLY sys.dm_exec_query_plan(plan_handle) AS qp
+CROSS APPLY query_plan.nodes('/ShowPlanXML/BatchSequence/Batch/Statements/StmtSimple') AS batch(stmt)
+CROSS APPLY stmt.nodes('.//IndexScan/Object[@Index=sql:variable("@IndexName")]') AS idx(obj)
+OPTION(MAXDOP 1, RECOMPILE);
+GO