Ajouter dossier/script.sql
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dossier/script.sql
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158
dossier/script.sql
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--======================================================================================
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--> Pour une période donnée, obtenir les requêtes exécutées et leurs contextes d'éxécutions
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--======================================================================================
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DECLARE @DateHeureDebut varchar(20) -- Date et heure de début
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,@DateHeureFin varchar(20); -- Date et heure de fin
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-- Période :
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SET @DateHeureDebut = '2023-09-29 14:00:00'
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SET @DateHeureFin = '2023-09-29 16:00:00'
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BEGIN
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SELECT convert(varchar(19),creation_time,120)AS [Dateheure],
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total_worker_time/execution_count AS [Avg CPU Time],
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total_logical_reads,
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execution_count,
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(total_elapsed_time - total_worker_time) / qs.execution_count AS [Avg Blocked],
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SUBSTRING(st.text, (qs.statement_start_offset/2)+1,((CASE qs.statement_end_offset WHEN -1 THEN DATALENGTH(st.text)
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ELSE qs.statement_end_offset END - qs.statement_start_offset)/2) + 1) AS statement_text ,query_plan
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FROM sys.dm_exec_query_stats AS qs
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CROSS APPLY sys.dm_exec_sql_text(qs.sql_handle) AS st
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CROSS APPLY sys.dm_exec_query_plan(qs.plan_handle)
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WHERE creation_time >= CONVERT(datetime,@DateHeureDebut,120) AND creation_time <= CONVERT(datetime,@DateHeureFin,120)
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ORDER BY creation_time DESC;
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END
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--======================================================================================
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--> Afficher les 50 dernières requêtes les plus consommatrices de CPU
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--======================================================================================
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SELECT TOP 50 total_worker_time/execution_count AS [Avg CPU Time],
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SUBSTRING(st.text, (qs.statement_start_offset/2)+1,((CASE qs.statement_end_offset WHEN -1 THEN DATALENGTH(st.text)
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ELSE qs.statement_end_offset END - qs.statement_start_offset)/2) + 1) AS statement_text
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FROM sys.dm_exec_query_stats AS qs
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CROSS APPLY sys.dm_exec_sql_text(qs.sql_handle) AS st
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ORDER BY total_worker_time/execution_count DESC;
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--======================================================================================
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--> Afficher les 50 dernières requêtes les plus consommatrices de CPU et les plans d'éxécutions correspondants
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--======================================================================================
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SELECT TOP 50 total_worker_time/execution_count AS [Avg CPU Time],
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SUBSTRING(st.text, (qs.statement_start_offset/2)+1,((CASE qs.statement_end_offset WHEN -1 THEN DATALENGTH(st.text)
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ELSE qs.statement_end_offset END - qs.statement_start_offset)/2) + 1) AS statement_text,query_plan
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FROM sys.dm_exec_query_stats AS qs
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CROSS APPLY sys.dm_exec_sql_text(qs.sql_handle) AS st
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CROSS APPLY sys.dm_exec_query_plan(qs.plan_handle)
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ORDER BY total_worker_time/execution_count DESC;
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--======================================================================================
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--> Afficher les 50 dernières requêtes exécutées
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--======================================================================================
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SELECT TOP 50 creation_time,
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total_worker_time/execution_count AS [Avg CPU Time],
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SUBSTRING(st.text, (qs.statement_start_offset/2)+1,((CASE qs.statement_end_offset WHEN -1 THEN DATALENGTH(st.text)
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ELSE qs.statement_end_offset END - qs.statement_start_offset)/2) + 1) AS statement_text
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FROM sys.dm_exec_query_stats AS qs
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CROSS APPLY sys.dm_exec_sql_text(qs.sql_handle) AS st
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ORDER BY creation_time DESC;
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--======================================================================================
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--> Afficher les 50 dernières requêtes exécutées et les plans d'éxécutions correspondants
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--======================================================================================
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SELECT TOP 50 creation_time,
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total_worker_time/execution_count AS [Avg CPU Time],
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SUBSTRING(st.text, (qs.statement_start_offset/2)+1,((CASE qs.statement_end_offset WHEN -1 THEN DATALENGTH(st.text)
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ELSE qs.statement_end_offset END - qs.statement_start_offset)/2) + 1) AS statement_text ,query_plan
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FROM sys.dm_exec_query_stats AS qs
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CROSS APPLY sys.dm_exec_sql_text(qs.sql_handle) AS st
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CROSS APPLY sys.dm_exec_query_plan(qs.plan_handle)
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ORDER BY creation_time DESC;
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--======================================================================================
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--> Afficher les 50 requêtes les + fréquemment exécutées
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--======================================================================================
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SELECT TOP 50 creation_time,
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execution_count,
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total_worker_time/execution_count AS [Avg CPU Time],
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total_logical_reads,
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SUBSTRING(st.text, (qs.statement_start_offset/2)+1,((CASE qs.statement_end_offset WHEN -1 THEN DATALENGTH(st.text)
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ELSE qs.statement_end_offset END - qs.statement_start_offset)/2) + 1) AS statement_text
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FROM sys.dm_exec_query_stats AS qs
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CROSS APPLY sys.dm_exec_sql_text(qs.sql_handle) AS st
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ORDER BY execution_count DESC;
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--======================================================================================
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--> Afficher les 50 requêtes les + fréquemment exécutées et les plans d'éxécutions correspondants
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--======================================================================================
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SELECT TOP 50 creation_time,
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execution_count,
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total_worker_time/execution_count AS [Avg CPU Time],
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total_logical_reads,
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SUBSTRING(st.text, (qs.statement_start_offset/2)+1,((CASE qs.statement_end_offset WHEN -1 THEN DATALENGTH(st.text)
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ELSE qs.statement_end_offset END - qs.statement_start_offset)/2) + 1) AS statement_text,query_plan
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FROM sys.dm_exec_query_stats AS qs
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CROSS APPLY sys.dm_exec_sql_text(qs.sql_handle) AS st
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CROSS APPLY sys.dm_exec_query_plan(qs.plan_handle)
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ORDER BY execution_count DESC;
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--======================================================================================
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--> Afficher les 50 requêtes les + coûteuses en I/O logique (Lecture/Ecriture de données en mémoire)
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--======================================================================================
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SELECT TOP 50 creation_time,
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(total_logical_reads + total_logical_writes)AS [Total IO Logique] ,
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(total_logical_reads + total_logical_writes) / qs.execution_count AS [Avg IO Logique],
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total_worker_time/execution_count AS [Avg CPU Time],
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SUBSTRING(st.text, (qs.statement_start_offset/2)+1,((CASE qs.statement_end_offset WHEN -1 THEN DATALENGTH(st.text)
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ELSE qs.statement_end_offset END - qs.statement_start_offset)/2) + 1) AS statement_text
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FROM sys.dm_exec_query_stats AS qs
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CROSS APPLY sys.dm_exec_sql_text(qs.sql_handle) AS st
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ORDER BY [Avg IO Logique] DESC;
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--======================================================================================
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--> Afficher les 50 requêtes les + coûteuses en I/O logique (Lecture/Ecriture de données en mémoire) et les plans d'éxécutions correspondants
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--======================================================================================
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SELECT TOP 50 creation_time,
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(total_logical_reads + total_logical_writes)AS [Total IO Logique] ,
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(total_logical_reads + total_logical_writes) / qs.execution_count AS [Avg IO Logique],
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total_worker_time/execution_count AS [Avg CPU Time],
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SUBSTRING(st.text, (qs.statement_start_offset/2)+1,((CASE qs.statement_end_offset WHEN -1 THEN DATALENGTH(st.text)
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ELSE qs.statement_end_offset END - qs.statement_start_offset)/2) + 1) AS statement_text,query_plan
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FROM sys.dm_exec_query_stats AS qs
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CROSS APPLY sys.dm_exec_sql_text(qs.sql_handle) AS st
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CROSS APPLY sys.dm_exec_query_plan(qs.plan_handle)
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ORDER BY [Avg IO Logique] DESC;
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--======================================================================================
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--> Afficher les 50 requêtes les + lentes (les moins performantes)
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--======================================================================================
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SELECT TOP 50 creation_time,
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(total_elapsed_time - total_worker_time)AS [Total Blocked] ,
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(total_elapsed_time - total_worker_time) / qs.execution_count AS [Avg Blocked],
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total_worker_time/execution_count AS [Avg CPU Time],
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SUBSTRING(st.text, (qs.statement_start_offset/2)+1,((CASE qs.statement_end_offset WHEN -1 THEN DATALENGTH(st.text)
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ELSE qs.statement_end_offset END - qs.statement_start_offset)/2) + 1) AS statement_text
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FROM sys.dm_exec_query_stats AS qs
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CROSS APPLY sys.dm_exec_sql_text(qs.sql_handle) AS st
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ORDER BY [Avg Blocked] DESC;
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--======================================================================================
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--> Afficher les 50 requêtes les + lentes (les moins performantes) et les plans d'éxécutions correspondants
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--======================================================================================
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SELECT TOP 50 creation_time,
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(total_elapsed_time - total_worker_time)AS [Total Blocked] ,
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(total_elapsed_time - total_worker_time) / qs.execution_count AS [Avg Blocked],
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total_worker_time/execution_count AS [Avg CPU Time],
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SUBSTRING(st.text, (qs.statement_start_offset/2)+1,((CASE qs.statement_end_offset WHEN -1 THEN DATALENGTH(st.text)
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ELSE qs.statement_end_offset END - qs.statement_start_offset)/2) + 1) AS statement_text,query_plan
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FROM sys.dm_exec_query_stats AS qs
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CROSS APPLY sys.dm_exec_sql_text(qs.sql_handle) AS st
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CROSS APPLY sys.dm_exec_query_plan(qs.plan_handle)
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ORDER BY [Avg Blocked] DESC
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