SqlServer教程

SQL SERVER 占用资源高的SQL语句

本文主要是介绍SQL SERVER 占用资源高的SQL语句,对大家解决编程问题具有一定的参考价值,需要的程序猿们随着小编来一起学习吧!

 

 

--SQL SERVER 占用资源高的SQL语句:
--查询占用cpu高的前 50 个 SQL 语句
SELECT total_cpu_time,[total_physical_Reads], total_execution_count, number_of_statements, s2.text
--(SELECT SUBSTRING(s2.text, statement_start_offset / 2, ((CASE WHEN statement_end_offset = -1 THEN (LEN(CONVERT(NVARCHAR(MAX), s2.text)) * 2) ELSE statement_end_offset END) - statement_start_offset) / 2) ) AS query_text
FROM
(SELECT TOP 50
SUM(qs.total_worker_time) AS total_cpu_time,
SUM(total_physical_reads) AS [total_physical_Reads],
SUM(qs.execution_count) AS total_execution_count,
COUNT(*) AS number_of_statements,
qs.sql_handle --,
--MIN(statement_start_offset) AS statement_start_offset,
--MAX(statement_end_offset) AS statement_end_offset
FROM
sys.dm_exec_query_stats AS qs
GROUP BY qs.sql_handle
ORDER BY SUM(qs.total_worker_time) DESC) AS stats
CROSS APPLY sys.dm_exec_sql_text(stats.sql_handle) AS s2
--------------------------------------------------------------------

--查询物理IO高的前 50 个 SQL 语句
SELECT total_cpu_time, total_physical_Reads , total_execution_count, number_of_statements, s2.text
--(SELECT SUBSTRING(s2.text, statement_start_offset / 2, ((CASE WHEN statement_end_offset = -1 THEN (LEN(CONVERT(NVARCHAR(MAX), s2.text)) * 2) ELSE statement_end_offset END) - statement_start_offset) / 2) ) AS query_text
FROM
(SELECT TOP 50
SUM(qs.total_worker_time) AS total_cpu_time,
SUM(total_physical_reads) AS [total_physical_Reads],
SUM(qs.execution_count) AS total_execution_count,
COUNT(*) AS number_of_statements,
qs.sql_handle --,
--MIN(statement_start_offset) AS statement_start_offset,
--MAX(statement_end_offset) AS statement_end_offset
FROM
sys.dm_exec_query_stats AS qs
GROUP BY qs.sql_handle
ORDER BY SUM(qs.total_physical_Reads) DESC) AS stats
CROSS APPLY sys.dm_exec_sql_text(stats.sql_handle) AS s2

 

SQL SERVER 占用资源高的SQL语句 - Chr☆s - 博客园 (cnblogs.com)

这篇关于SQL SERVER 占用资源高的SQL语句的文章就介绍到这儿,希望我们推荐的文章对大家有所帮助,也希望大家多多支持为之网!