This script will show you all the queries that have run against a particular table since the last time SQL Server was rebooted. This query is good in helping to define indexes. This only works against SQL 2008.
SELECT DISTINCT TOP 1000 ProcedureName = OBJECT_SCHEMA_NAME(qt.objectid) + '.' + OBJECT_NAME(qt.objectid) ,SQLStatement = SUBSTRING( qt.Text ,(qs.statement_start_offset/2)+1 ,CASE qs.statement_end_offset WHEN -1 THEN DATALENGTH(qt.text) ELSE qs.statement_end_offset END - (qs.statement_start_offset/2) + 1 ) ,DiskReads = qs.total_physical_reads -- The worst reads, disk reads ,MemoryReads = qs.total_logical_reads --Logical Reads are memory reads ,ExecutionCount = qs.execution_count ,CPUTime = qs.total_worker_time ,DiskWaitAndCPUTime = qs.total_elapsed_time ,MemoryWrites = qs.max_logical_writes ,DateCached = qs.creation_time ,DatabaseName = DB_Name(qt.dbid) ,LastExecutionTime = qs.last_execution_time --,sre.* FROM sys.dm_exec_query_stats AS qs CROSS APPLY sys.dm_exec_sql_text(qs.sql_handle) AS qt CROSS APPLY sys.dm_sql_referenced_entities( OBJECT_SCHEMA_NAME(qt.objectid) + '.' + OBJECT_NAME(qt.objectid) , 'OBJECT' ) sre WHERE qt.dbid = db_id() -- Filter by current database AND sre.referenced_schema_name + '.' + sre.referenced_entity_name = 'dbo.Table'
