nots dmv

Misunderstanding #13. DMV cannot be used in SQL Server 2000 compatibility mode Error There are many misunderstandings about the compatibility mode. Does the database in the compatible mode of 80 mean that it can be attached or restored to the SQL Server 2000 database? Of course not. It just means some T-SQL syntaxes, the behavior of the query plan and some other aspects are the same as the behavior in SQL Server 2000 (of course, if you set the compa

Misunderstanding #13. DMV cannot be used in SQL Server 2000 compatibility mode Error There are many misunderstandings about the compatibility mode. Does the database in the compatible mode of 80 mean that it can be attached or restored to the SQL Server 2000 database? Of course not. It just means some T-SQL syntaxes, the behavior of the query plan and some other aspects are the same as the behavior in SQL Server 2000 (of course, if you set the compati

Misunderstanding #13. The DMV cannot be used in SQL Server 2000 compatibility mode Error There has been a lot of misunderstanding about compatibility mode. Does the 80 compatibility mode database imply the ability to attach or recover to a SQL Server 2000 database? Of course not. This simply means some T-SQL syntax, the behavior of the query plan, and some other aspects as in SQL Server 2000 (of course, if you set it to 90 compatibility mode, as in

When you find that the database query performance is very slow, you will think of adding indexes to optimize the database query performance. However, in the face of a complicated SQL statement, finding an optimized index combination is for the human brain, it's really not a simple task. Fortunately, SQLSERVER provides two "automatic" functions. We recommend that you adjust the index. The first is to use DMV. Second, database engine tuning advisor This

When you find that the database query performance is very slow, you will think of adding indexes to optimize the database query performance. However, in the face of a complicated SQL statement, finding an optimized index combination is for the human brain, it's really not a simple task. Fortunately, SQLSERVER provides two "automatic" functions. We recommend that you adjust the index. The first is to use DMV. Second, database engine tuning advisor This

When you find that the database query performance is very slow, everyone will think of Gazzo to optimize the database query performance, but the face of a complex SQL statement, to find an optimized index combination of the human brain, is really not a very simple thing. Fortunately, SQL Server provides two "automatic" features that give you advice on how to adjust the index The first is the use of the DMV The second is the use of DTA (Database Eng

Monitor the running status of SQL Server (2005/2008)-from tetchnet Original article address:Http://technet.microsoft.com/zh-cn/library/bb838723.aspx Microsoft SQL Server 2005 provides tools to monitor databases. One way is to manage the view dynamically. The server status information returned by the dynamic management view (DMV) and dynamic management function (DMF) can be used to monitor the running status of server instances, diagnose problems,

Original: SQL SERVER memory allocation and common memory issues (2)--DMV queryMemory dynamic management view (DMV):Starting from Sys.dm_os_memory_clerks.SELECT [Type], sum (virtual_memory_reserved_kb) as [VM reserved], sum (virtual_memory_committed_kb) as [ VM Committed], sum (awe_allocated_kb) as [awe allocated], sum (shared_memory_reserved_kb) as [SM reserved], SUM (sha

Label:Original: Seventh--dmvs and DMFs (3)--monitoring tempdb with a DMV and DMFObjective:We all know that TempDB is the system database for SQL Server and that the daily operation of SQL Server relies heavily on this library. Therefore, it is particularly important to monitor performance issues with TempDB . Over a long period of time, many people have overlooked the importance of TempDB and ignored its performance problems. This is not a good thing

Original: Seventh--dmvs and DMFs (4)--monitoring disk IO with DMV and DMFObjective:This is the last article in this series, as a DBA, you must always focus on disk I/O issues, and when problems arise, analyze what is the problem as quickly as possible. SQL Server also provides some columns of I/O -related DMO to monitor.This article describes how to use DMO to monitor the performance of the I/O subsystem and find I/O bottlenecks. In this article, I/O

Original: DBA tool--dmv--View stored procedure execution information through Sys.dm_exec_procedure_statsFor DBAs, there is often some information about the phone's stored procedure: How many times did you execute How does the execution plan What is the average read and write performed How long does it take to execute on average Column Name Data Type Description database_id int

Transferred from: http://blog.sqlauthority.com/2010/05/14/sql-server-find-most-expensive-queries-using-dmv/The title of this post was what I can express here for this Quick blog post. I was asked in recent Query tuning consultation project, if I can share my script which I use to figure out which is the M OST expensive queries is running on SQL Server. This script was very basic and very simple, there was many different versions is available online. T

, "ismsshipped") = 0And I.name is not NULLAnd s.object_id is NULL 'SELECT * from #TempNeverUsedIndexesORDER by Datbasename, SchemaName, TableName, IndexNameDROP TABLE #TempNeverUsedIndexesResults:Such indexes should be treated with care, not generalize, to see what causes the problemTo view information about index statisticsSET TRANSACTION Isolation Level READ UNCOMMITTEDSELECTSs.name as SchemaName, St.name as TableName, S.name as IndexName, Stats_date (S.id,s.indid) as ' Statistics last Updated

DMV about Indexes 1. View indexes that are updated but rarely used SET transaction isolation level read uncommittedSelectDb_name () as databasename, Schema_name (O. schema_id) as schemaname, Object_name (S. [object_id]) as tablename, I. Name as indexname, S. user_updates, S. system_seeks + S. system_scans + S. system_lookupsAs [system usage]Into # tempunusedindexesFrom SYS. dm_db_index_usage_statsInner join SYS. Indexes I on S. [object_id] = I.

Original: DBA tool--dmv--How to know how long a TSQL statement has been runningThe DBA usually wants to know how long the running statement has been executed? You can use SQL Server Profiler to capture the start time of a statement and compare it to an existing time, but in a production environment there is usually a negative impact on performance, so it is generally not recommended that you use it in a production environment without unnecessary assum

1) sys.dm_server_services This DMV can tell us the startup status of the services associated with the current version of SQL Server and the time of the last boot, such as this information.SELECT * from Sys.dm_server_services2) Sys.dm_server_registry This DMV can tell us about the configuration associated with the current SQL Server service, and we don't have to open SQL Server Config Mangement to see it. A

Label:SQL Server 2012 new and changed DMV System View Description SYS.DM_EXEC_QUERY_STATS (Transact-SQL) Four columns were added to help troubleshoot problems with long-running queries. SYS.DM_OS_VOLUME_STATS (Transact-SQL) by using this dynamic management function, you can check the properties of the physical disk drive, or return information about the available space for the

to optimize the database recently, you must first know where the problem is to be optimized and use the SQL server2005 analysis script. I also used several of them. they are all from the east to the west. reason why the server is waiting select