kk Blog —— 通用基础


date [-d @int|str] [+%s|"+%F %T"]
netstat -ltunp
sar -n DEV 1

SQLServer查询执行过的SQL记录

https://blog.csdn.net/zbc415766331/article/details/113924487

说明：仅支持sql server2008及以上版本

通过下面的SQL语句可以查看Sqlserver执行的SQL记录，常用于SQL优化及辅助查找数据更新相关功能bug。

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15

SELECT TOP 1000
	ST.text AS '执行的SQL语句',
	QS.execution_count AS '执行次数',
	QS.total_elapsed_time AS '耗时',
	QS.total_logical_reads AS '逻辑读取次数',
	QS.total_logical_writes AS '逻辑写入次数',
	QS.total_physical_reads AS '物理读取次数',
	QS.creation_time AS '执行时间' ,  
	QS.*
FROM sys.dm_exec_query_stats QS
	CROSS APPLY
sys.dm_exec_sql_text(QS.sql_handle) ST
WHERE  QS.creation_time >'2020-08-18'
ORDER BY
	QS.total_elapsed_time DESC

关键SQL信息查询测试

1
2
3
4
5
6
7
8
9
10

SELECT TOP 1000
	ST.text AS '执行的SQL语句',
	QS.total_elapsed_time AS '耗时',
	QS.creation_time AS '执行时间' 
FROM sys.dm_exec_query_stats QS
	CROSS APPLY
sys.dm_exec_sql_text(QS.sql_handle) ST
WHERE QS.creation_time >'2021-02-18 15:00' AND QS.creation_time <'2021-02-18 23:00'
ORDER BY
	QS.total_elapsed_time DESC