What's the differences between sys.dm_exec_query_stats and sys.dm_exec_cached_plans?
As per my understandings, from sys.dm_exec_query_stats, we can cross apply other DMFs to get the statement level cached plans and the query text. From sys.dm_exec_cached_plans, we can get the cached plans and the query text (by cross apply other DMFs). So what's the differences?
sql-server execution-plan dmv metadata
edited Dec 2 '16 at 3:12
Wafie Ali
1154
asked Dec 1 '16 at 22:05
Ogrish ManOgrish Man
1,06942234
bumped to the homepage by Community♦ 19 mins ago
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As per my understandings, from sys.dm_exec_query_stats, we can cross apply other DMFs to get the statement level cached plans and the query text. From sys.dm_exec_cached_plans, we can get the cached plans and the query text (by cross apply other DMFs). So what's the differences?
sql-server execution-plan dmv metadata
edited Dec 2 '16 at 3:12
Wafie Ali
1154
asked Dec 1 '16 at 22:05
Ogrish ManOgrish Man
1,06942234
bumped to the homepage by Community♦ 19 mins ago
This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.
add a comment |
As per my understandings, from sys.dm_exec_query_stats, we can cross apply other DMFs to get the statement level cached plans and the query text. From sys.dm_exec_cached_plans, we can get the cached plans and the query text (by cross apply other DMFs). So what's the differences?
sql-server execution-plan dmv metadata
edited Dec 2 '16 at 3:12
Wafie Ali
1154
asked Dec 1 '16 at 22:05
Ogrish ManOgrish Man
1,06942234
As per my understandings, from sys.dm_exec_query_stats, we can cross apply other DMFs to get the statement level cached plans and the query text. From sys.dm_exec_cached_plans, we can get the cached plans and the query text (by cross apply other DMFs). So what's the differences?
sql-server execution-plan dmv metadata
sql-server execution-plan dmv metadata
edited Dec 2 '16 at 3:12
Wafie Ali
1154
asked Dec 1 '16 at 22:05
Ogrish ManOgrish Man
1,06942234
edited Dec 2 '16 at 3:12
Wafie Ali
1154
asked Dec 1 '16 at 22:05
Ogrish ManOgrish Man
1,06942234
edited Dec 2 '16 at 3:12
Wafie Ali
1154
edited Dec 2 '16 at 3:12
Wafie Ali
1154
edited Dec 2 '16 at 3:12
Wafie Ali
1154
1154
asked Dec 1 '16 at 22:05
Ogrish ManOgrish Man
1,06942234
asked Dec 1 '16 at 22:05
Ogrish ManOgrish Man
1,06942234
asked Dec 1 '16 at 22:05
Ogrish ManOgrish Man
1,06942234
1,06942234
bumped to the homepage by Community♦ 19 mins ago
This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.
bumped to the homepage by Community♦ 19 mins ago
This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.
add a comment |
add a comment |
1 Answer
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In terms of getting the plan, using sys.dm_exec_query_stats you can use statement_start_offset and End offset to get the plan for individual statement in a stored procedure.
Eg
select top 100 object_name(object_id),ps.execution_count as proc_exec_count, qs.plan_generation_num, qs.execution_count as Stmt_exec_count,qs.total_elapsed_time/qs.execution_count as AVG_Run_Time, qs.total_worker_time/qs.execution_count AS Avg_CPU_Time,
qs.last_elapsed_time, qs.min_elapsed_time, qs.max_elapsed_time,qs.min_rows,qs.max_rows,
SUBSTRING ([st].[text],
([qs].[statement_start_offset] / 2) + 1,
((CASE [statement_end_offset]
WHEN -1 THEN DATALENGTH ([st].[text])
ELSE [qs].[statement_end_offset] END
- [qs].[statement_start_offset]) / 2) + 1)
AS [StatementText],cast(s3.query_plan as xml) query_plan
from sys.dm_exec_procedure_stats ps
JOIN [sys].[dm_exec_query_stats] AS [qs]
ON [ps].[plan_handle] = [qs].[plan_handle]
cross apply sys.dm_exec_text_query_plan ([qs].[plan_handle], statement_start_offset, statement_end_offset) s3
CROSS APPLY [sys].[dm_exec_sql_text] ([qs].[sql_handle]) AS [st]
where database_id=db_id('DB') --and qs.execution_count >100
and object_id in (object_id('SP Name'))
ORDER BY avg_run_time DESC
And obviously it has different information regarding query execution stats and plans.
answered Dec 1 '16 at 23:21
jesijesijesijesi
878419
add a comment |
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1 Answer
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1 Answer
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In terms of getting the plan, using sys.dm_exec_query_stats you can use statement_start_offset and End offset to get the plan for individual statement in a stored procedure.
Eg
select top 100 object_name(object_id),ps.execution_count as proc_exec_count, qs.plan_generation_num, qs.execution_count as Stmt_exec_count,qs.total_elapsed_time/qs.execution_count as AVG_Run_Time, qs.total_worker_time/qs.execution_count AS Avg_CPU_Time,
qs.last_elapsed_time, qs.min_elapsed_time, qs.max_elapsed_time,qs.min_rows,qs.max_rows,
SUBSTRING ([st].[text],
([qs].[statement_start_offset] / 2) + 1,
((CASE [statement_end_offset]
WHEN -1 THEN DATALENGTH ([st].[text])
ELSE [qs].[statement_end_offset] END
- [qs].[statement_start_offset]) / 2) + 1)
AS [StatementText],cast(s3.query_plan as xml) query_plan
from sys.dm_exec_procedure_stats ps
JOIN [sys].[dm_exec_query_stats] AS [qs]
ON [ps].[plan_handle] = [qs].[plan_handle]
cross apply sys.dm_exec_text_query_plan ([qs].[plan_handle], statement_start_offset, statement_end_offset) s3
CROSS APPLY [sys].[dm_exec_sql_text] ([qs].[sql_handle]) AS [st]
where database_id=db_id('DB') --and qs.execution_count >100
and object_id in (object_id('SP Name'))
ORDER BY avg_run_time DESC
And obviously it has different information regarding query execution stats and plans.
answered Dec 1 '16 at 23:21
jesijesijesijesi
878419
add a comment |
In terms of getting the plan, using sys.dm_exec_query_stats you can use statement_start_offset and End offset to get the plan for individual statement in a stored procedure.
Eg
select top 100 object_name(object_id),ps.execution_count as proc_exec_count, qs.plan_generation_num, qs.execution_count as Stmt_exec_count,qs.total_elapsed_time/qs.execution_count as AVG_Run_Time, qs.total_worker_time/qs.execution_count AS Avg_CPU_Time,
qs.last_elapsed_time, qs.min_elapsed_time, qs.max_elapsed_time,qs.min_rows,qs.max_rows,
SUBSTRING ([st].[text],
([qs].[statement_start_offset] / 2) + 1,
((CASE [statement_end_offset]
WHEN -1 THEN DATALENGTH ([st].[text])
ELSE [qs].[statement_end_offset] END
- [qs].[statement_start_offset]) / 2) + 1)
AS [StatementText],cast(s3.query_plan as xml) query_plan
from sys.dm_exec_procedure_stats ps
JOIN [sys].[dm_exec_query_stats] AS [qs]
ON [ps].[plan_handle] = [qs].[plan_handle]
cross apply sys.dm_exec_text_query_plan ([qs].[plan_handle], statement_start_offset, statement_end_offset) s3
CROSS APPLY [sys].[dm_exec_sql_text] ([qs].[sql_handle]) AS [st]
where database_id=db_id('DB') --and qs.execution_count >100
and object_id in (object_id('SP Name'))
ORDER BY avg_run_time DESC
And obviously it has different information regarding query execution stats and plans.
answered Dec 1 '16 at 23:21
jesijesijesijesi
878419
add a comment |
In terms of getting the plan, using sys.dm_exec_query_stats you can use statement_start_offset and End offset to get the plan for individual statement in a stored procedure.
Eg
select top 100 object_name(object_id),ps.execution_count as proc_exec_count, qs.plan_generation_num, qs.execution_count as Stmt_exec_count,qs.total_elapsed_time/qs.execution_count as AVG_Run_Time, qs.total_worker_time/qs.execution_count AS Avg_CPU_Time,
qs.last_elapsed_time, qs.min_elapsed_time, qs.max_elapsed_time,qs.min_rows,qs.max_rows,
SUBSTRING ([st].[text],
([qs].[statement_start_offset] / 2) + 1,
((CASE [statement_end_offset]
WHEN -1 THEN DATALENGTH ([st].[text])
ELSE [qs].[statement_end_offset] END
- [qs].[statement_start_offset]) / 2) + 1)
AS [StatementText],cast(s3.query_plan as xml) query_plan
from sys.dm_exec_procedure_stats ps
JOIN [sys].[dm_exec_query_stats] AS [qs]
ON [ps].[plan_handle] = [qs].[plan_handle]
cross apply sys.dm_exec_text_query_plan ([qs].[plan_handle], statement_start_offset, statement_end_offset) s3
CROSS APPLY [sys].[dm_exec_sql_text] ([qs].[sql_handle]) AS [st]
where database_id=db_id('DB') --and qs.execution_count >100
and object_id in (object_id('SP Name'))
ORDER BY avg_run_time DESC
And obviously it has different information regarding query execution stats and plans.
answered Dec 1 '16 at 23:21
jesijesijesijesi
878419
In terms of getting the plan, using sys.dm_exec_query_stats you can use statement_start_offset and End offset to get the plan for individual statement in a stored procedure.
Eg
select top 100 object_name(object_id),ps.execution_count as proc_exec_count, qs.plan_generation_num, qs.execution_count as Stmt_exec_count,qs.total_elapsed_time/qs.execution_count as AVG_Run_Time, qs.total_worker_time/qs.execution_count AS Avg_CPU_Time,
qs.last_elapsed_time, qs.min_elapsed_time, qs.max_elapsed_time,qs.min_rows,qs.max_rows,
SUBSTRING ([st].[text],
([qs].[statement_start_offset] / 2) + 1,
((CASE [statement_end_offset]
WHEN -1 THEN DATALENGTH ([st].[text])
ELSE [qs].[statement_end_offset] END
- [qs].[statement_start_offset]) / 2) + 1)
AS [StatementText],cast(s3.query_plan as xml) query_plan
from sys.dm_exec_procedure_stats ps
JOIN [sys].[dm_exec_query_stats] AS [qs]
ON [ps].[plan_handle] = [qs].[plan_handle]
cross apply sys.dm_exec_text_query_plan ([qs].[plan_handle], statement_start_offset, statement_end_offset) s3
CROSS APPLY [sys].[dm_exec_sql_text] ([qs].[sql_handle]) AS [st]
where database_id=db_id('DB') --and qs.execution_count >100
and object_id in (object_id('SP Name'))
ORDER BY avg_run_time DESC
And obviously it has different information regarding query execution stats and plans.
answered Dec 1 '16 at 23:21
jesijesijesijesi
878419
edited Dec 1 '16 at 23:31
answered Dec 1 '16 at 23:21
jesijesijesijesi
878419
answered Dec 1 '16 at 23:21
jesijesijesijesi
878419
answered Dec 1 '16 at 23:21
jesijesijesijesi
878419
878419
add a comment |
add a comment |
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