tempdb 相关总结

/*
-- 0. 高速压缩tempdb为初始值
USE tempdb
DBCC SHRINKFILE(2,TRUNCATEONLY);
*/-- 1. tempdb以下未回收的暂时表 ,某些版本号可能查不到数据
use tempdb;
select * from sys.objects o where o.type like '%U%';-- Chapter 7 - Knowing Tempdb
-- christian@coeo.com-- Show tempdb usage by type across all files
SELECT  SUM(user_object_reserved_page_count) AS user_object_pages,SUM(internal_object_reserved_page_count) AS internal_object_pages,SUM(version_store_reserved_page_count) AS version_store_pages,total_in_use_pages = SUM(user_object_reserved_page_count)+ SUM(internal_object_reserved_page_count)+ SUM(version_store_reserved_page_count),SUM(unallocated_extent_page_count) AS total_free_pages
FROM    sys.dm_db_file_space_usage ;-- Find the top 5 sessions running tasks that use tempdb
SELECT TOP 5*
FROM    sys.dm_db_task_space_usage
WHERE   session_id > 50
ORDER BY user_objects_alloc_page_count + internal_objects_alloc_page_count DESC ;--return currently running T-SQL with Execution Plans
SELECT  session_id,text,query_plan
FROM    sys.dm_exec_requestsCROSS APPLY sys.dm_exec_sql_text(sql_handle)CROSS APPLY sys.dm_exec_query_plan(plan_handle) ;--view historic tempdb usage by session
SELECT  *
FROM    sys.dm_db_session_space_usage
WHERE   session_id > 50
ORDER BY user_objects_alloc_page_count + internal_objects_alloc_page_count DESC ;-- Temp Tables Creation Rate
SELECT  *
FROM    sys.dm_os_performance_counters
WHERE   counter_name = 'Temp Tables Creation Rate' ;

转载于:https://www.cnblogs.com/yutingliuyl/p/7084585.html

tempdb 相关总结相关推荐

tempdb相关文章
Why does the buffer pool contain so many dirty tempdb pages? 本文大意: 对于tempdb来说,还原模式为简单模式也只能是简单模式,不需要从 ...
SQL Server 2019 (15.x) 新特性概要
2019.11.4 SQL Server 2019发布,趁热打铁了解下2019的新特性.下面整理一些个人感觉重要的或者工作上能用到的新特性,有删减,完整版参考 SQL Server 2019 中的新增 ...
[转]oracle临时表相关知识
回复: 临时表存放在哪儿? DML statements on temporary tables do not generate redo logs for the data changes. How ...
转：asp.net 负载平衡-Session相关
来自:http://www.cnblogs.com/zxylonely/archive/2009/12/23/1630197.html http://blog.csdn.net/lvlingwy/ar ...
第八章了解tempdb数据库
1.一个sqlserver数据库实例上只能有一个tempdb数据库,这个实例上所有的用户都共享这个数据库. 2.tempdb数据库在每次sqlserver重启后都会重新创建,所以数据会丢失. 3.因为 ...
SQL Server Junior Database Administrator方案相关的访谈问答
In this article, we will discuss a number of questions that you may be asked when applying to a juni ...
sql tempdb清理_SQL Server 2019中的内存优化的TempDB元数据
sql tempdb清理介绍 (Introduction) In-memory technologies are one of the greatest ways to improve perfor ...
数据文件shrink_SQL Server中的Shrink TempDB数据库概述
数据文件shrink This article explores the usage of TempDB and different ways to shrink the TempDB databas ...
tempdb数据库清理_tempdb数据库，简介和建议
tempdb数据库清理介绍 ( Introduction ) Many times the people focus on the user databases to improve the per ...

tempdb 相关总结

tempdb 相关总结相关推荐

最新文章

热门文章