sql server performance counters

Tags: instance default help input extern data package MSDN One fixOriginal: SQL Server performance Tuning resource waiting network I/OI. OverviewThe main wait for network I/O is async_network_io, when SQL Server returns a data result set to the client, the result set is popu

suggestions.DatabaseApplicationSystemDesignIt should contain two aspects: 1. StructureDesign, That isDesignDatabase framework or structure; second, behaviorDesign, That isDesignApplicationPrograms and transactions.1 DatabaseDesignTo achieve optimal performance in a good SQL Server SolutionPerformanceThe most important thing is to have a good database.DesignSolut

, generally believed that the closer the data from the method efficiency higher. With a careful use of cascading deletes and cascading updates, cascading deletes and cascading updates as new features of SQL SERVER 2000, are reserved in 2005 and should be available. I'm talking about caution here, because cascading deletions and cascading updates have broken through the traditional definition of foreign keys

What is database partition?Database partitioning is a type of horizontal table segmentation. This technology is provided by SQL Server 2005 Enterprise Edition and later SQL Server versions. This type of horizontal table segmentation is different from that in SQL

I. Preface Index plays an important role in database performance. The advantages and disadvantages of index design directly affect the efficiency of DB execution. Therefore, when performing DB tuning, some of them will start to process the index. SQL server also provides a good tool for Database Engine Tuning Advisor and provides some advice on index creation and

Many enterprises also use various versions of Windows 9x in various contexts, so in order to use SQL Server 2000 in these environments, we must first understand the performance and limitations of Windows 9x. Client software SQL Server 2000 client software is included with

In this article I would like to summarize the following SQL Server 2014 introduces a variety of amazing performance improvements!!Cache Pool Extension (buffer pools Extensions)The idea of a cache pool extension is simple: Store page files on very fast storage, such as SSD drives, to extend the cache pool. Cache pool extensions are very handy, and if you can't add

= 'white'Indexes created on the following columns will be useful to the optimizer.Au_lnameAu_lname, au_fnameThe indexes created in the following columns will not play a good role in the optimizer.Au_addressAu_fname, au_lnameConsider using narrow indexes on one or two columns. Narrow indexes are more effective than multi-index and composite indexes. Use a narrow index on each pageThere will be more rows and fewer index levels (relative to Multiple indexes and composite indexes), which will promo

SQL Server query performance optimization analysis transactions and locks (2 ). Step 1: Execute Example 2 and Example 3 code in the query analyzer. (This is the example in the previous article SQLSERVER query performance optimization analysis transactions and locks (2) -- Example 2 6 is locked by 53

Label:I believe a lot of friends, whether it is to do development, architecture, or DBA, are often heard of the word "tuning". Talk about "tuning", may make a lot of technical staff heart passion, also may make a lot of people feel distressed, do not know how to start. Of course, there are many people who are dismissive of this, because not everyone does the project is very high performance requirements. In the mainstream of enterprise-level developme

worry about it, of course, the above scenario is not completely covered, or at least to explain part. The results we got above look at the execution time, now let's look at the two query execution plans.0 ) from sys.tables as T; 0 ) from sys.tables as T;The above may not be accurate, but also related to hardware configuration, it is possible to coalesce poor performance and IsNull. There should be no big difference in

SQL Server query performance optimization and analysis of transactions and locks (1) Step 2: analyze the locking status using SQL statements. sys. in the sysprocesses view, find out the source of waiting for the initial lock of resources and the subsequent processes to be forced to stop. The following code is applicabl

In SQL Server database operations, we often use stored procedures to implement the query data paging to facilitate the browsing of the viewer. In this article, we summarize the methods of five SQL Server paging stored procedures and compare their performance, so let's take a

Extending a SQL Server environment across multiple systems can be said to be a difficult and complex project, involving partitioned databases, federation, and so on. So, when it comes to SQL Server scalability, most organizations prefer to take the approach of extending independent systems before trying to solve them.

I. Indexed views For years, MicrosoftSQL Server has supported the creation of virtual tables called views. Typically, the main functions of these views are: Provides a security mechanism that restricts users to a dataset in one or more base tables. Provides a mechanism that allows developers to customize how users can view data stored in a base table in a logical way. The capabilities of the SQL

1> Computer HardwareIf you suspect that computer hardware is the main cause of affecting SQL server performance, you can monitor the load of the corresponding hardware through SQL server performance monitor to confirm your guesses

N a long time ago, I read the technical insider's section on CPU analysis. I wrote one article, but before I finish writing it, I have something to do. Later I thought I had published it. I saw it in the draft box today. I sorted it out and published it... The Analysis of CPU utilization focuses on CPU bottlenecks, compilation, and decompilation. 1. CPU bottleneck You can check the Processor: % Processor Time counter in PERFMON to determine whether there is a hard bottleneck. If the value 1 is t

Original: SQL server-focus Inner JOIN and in performance analysis (14)ObjectiveIn this section we talk about the integration of integrated knowledge, we are in most tutorials or theoretical books are talking about which good, which performance is inferior to which performance