how to trace query in sql server profiler

It is understood that the vast majority of developers have a thorough understanding of indexing, limited to the fact that most daily work has no chance, and there is no need to care about or understand indexing, when a query is too slow, you can create an index based on the query conditions. When another query is slow, you can create an index, or directly send th

Tag: Style color IO using strong SP data on problemIn recent times, has been exploring the SQL Server query performance issues, of course, also aimless search for a lot of information, but also from the online great God's articles learned a lot, here, to the great God salute. It is by the great God selfless dedication of the influence of the spirit, so, the young

This article introduces parameterized query. I will discuss how SQL Server optimizer attempts to parameterize a query and how you can create your own parameterized query if the query can be parameterized. This article introduces p

What is parameterized query? A simple way to understand parameterized queries is to think of it as just a T-SQL query that accepts parameters that control what the query returns. By using different parameters, a parameterized query returns different results. To obtain a para

SmallProgramGrowth of SQL Server Cognition 1. I don't have to graduate or work for a long time. I only know the relationship between SQL and SQL Server Oracle and MySQL. I usually think that SQL is

It is understood that most developers have a smattering of understanding of the index, limited to most of the daily work no opportunity, what is not necessary to care about, understand the index, it is really a query too slow to find the query conditions to build an index on OK, which day again a query slow, and then establish an index is, Or simply send the enti

Solutions for querying paging data using SQL Server SQL statements: You must select 3,000th records on page 1 of tbllendlist, with 100 records on each page. ------------------------- ----------Method 1:----------Select Top 100 * From tbllendlistWhere fldserialno not in(Select top 300100 fldserialno from tbllendlistOrder by fldserialno)Order by fldserialno -

Myth 1. An index is established on a table and an indexed column is used at query time, and the index is bound to take effectFirst of all, it is wrong to make it clear that the SQL Server query optimizer is a cost-based optimizer that determines whether to use an index, what type of index to use, and which index to use

This article describes how the query memory grant, which works on SQL Server, applies to SQL 2005 through 2008. Query Memory Grants (hereinafter abbreviated as QMG) are used to store temporary intermediate data rows when data is sorted and concatenated. A

Label:Original: 1th week how SQL Server executes a queryHello everyone, Welcome to the 1th week of SQL Server Performance Tuning training . Before we go into the tedious details of SQL Server performance tuning, I want to build th

-- Create a linked serverExec sp_addmediaserver 'srv _ lnk ', '', 'sqloledb', 'server name'Exec sp_add1_srvlogin 'srv _ lnk ', 'false', null, 'username', 'Password'Go-- Query exampleSelect * from srv_lnk. Database Name. dbo. Table Name-- Import exampleSelect * into table from srv_lnk. Database Name. dbo. Table Name-- Delete the linked server when it is no longer

Original: SQL Server Tuning Series Advanced (query statement running several indicator value monitoring)ObjectiveIn the previous article, we analyzed how the query optimizer works, including: detailed operation steps of the query optimizer, analysis of filter conditions, opt

This article is "Stairway Series:Part of the ladder for SQL Server indexingIndexes are the basis of database design and tell developers to use the database with regard to the designer's intentions. Unfortunately, when performance problems arise, indexes are often added as an afterthought. The end here is a simple series of articles that should enable them to quickly make any database professional "fast"Thro

In database principles, clustering indexes are interpreted as follows: the order of clustering indexes is the physical storage order of data, while the non-clustering indexes are interpreted as follows: the index order is irrelevant to the physical data arrangement order. Because of this, a table can have at most one clustered index. However, this definition is too abstract. In SQL Server, indexes are descr

In database principles, clustering indexes are interpreted as follows: the order of clustering indexes is the physical storage order of data, while the non-clustering indexes are interpreted as follows: the index order is irrelevant to the physical data arrangement order. Because of this, a table can have at most one clustered index. However, this definition is too abstract. In SQL Server, indexes are des

In the previous study, we have learned some basic operations for Operating SQL Server with VB6.0. The original Article links are as follows: VB6.0 SQL server operations (1) -- how to connect to a database VB6.0 SQL server operatio

good starting point is to display a graphical execution plan (http://msdn.microsoft.com/en-us/library/ms178071.aspx). Other useful resources include the grant Fritchey book,SQL Server execution plan (free ebook form), and The various operator query plan outputs in the Simple-talk article of the pellet-in Amorim series ( http://www.simple-talk.com/author/fabiano

servers are Windows Server environments, all of which were written in Python with a monitoring script, and recently came across a need to add a Zabbix monitoring project, and I was thinking about using the bat batch I was doing my best to finish the project. No surprises, but with the help of the SQL Server command-line tool, the code is as follows: @ec

Label:It is understood that the vast majority of developers understand the index is smattering, limited to the majority of daily work without opportunities, and what is not necessary to care about the index, it is a query is too slow to find the query criteria to build an index OK, which day and a query slow, and then build an index is, Or simply the entire

Label:Original: SQL Server Tuning Series advanced (how the query optimizer runs)ObjectiveIn the previous articles, we introduced a series of basic descriptions of operators and the optimization methods and techniques for each operator. This includes a series of our common operators, including how to view execution plans, how several datasets are commonly used, ho