TSQL script - To Find Most Expensive Queries

SELECT TOP 10 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),
qs.execution_count,
qs.total_logical_reads,
qs.last_logical_reads,
qs.total_logical_writes,
qs.last_logical_writes,
qs.total_worker_time,
qs.last_worker_time,
qs.total_elapsed_time/1000000 total_elapsed_time_in_S,
qs.last_elapsed_time/1000000 last_elapsed_time_in_S,
qs.last_execution_time,
qp.query_plan
FROM sys.dm_exec_query_stats qs
CROSS APPLY sys.dm_exec_sql_text(qs.sql_handle) qt
CROSS APPLY sys.dm_exec_query_plan(qs.plan_handle) qp
ORDER BY qs.total_logical_reads DESC





Reference : Pinal Dave (http://blog.SQLAuthority.com)

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