improve linq query performance

method. If you confirm that a query will only be executed once, do not use CompiledQuery.To use it, you also need to pay the price. Finally, I hope these skills will be useful to you. Welcome to comments. This article is a translation article; See http://www.sidarok.com/web/blog/content/2008/05/02/10-tips-to-improve-your-linq-to-sql-application-performance.html

LINQ is short for Language Integrated Query, which is integrated in. net.Programming Language. Has become an integral part of the programming language.ProgramThe compilation syntax check, rich metadata, smart sensing, static type, and other advantages can be obtained. In addition, it also enables queries to conveniently Query Information in the memory, not just e

C #2.0 the biggest improvement is generics. the biggest improvement of C #3.0 is Linq (Language integration query ). there are three major segments in the Table: Linq to XML and Linq to ADO. NET (Linq to SQL, Linq to DataSet,

C #2.0 the biggest improvement is generics. the biggest improvement of C #3.0 is LINQ (Language integration query ). there are three major segments in the Table: LINQ to XML and LINQ to ADO. net (LINQ to SQL, LINQ to dataset,

Recommendation 29: Distinguish between IenumerableLINQ queries provide a total of two types of extension methods, under the System.Linq namespace, there are two static classes: The Enumerable class, which extends for collections that inherit the IenumerableLINQ queries can actually be functionally divided into 3 classes: LINQ to OBJECTS, LINQ to SQL, LINQ to XML.

: Query result page A common requirement for Web applications is to efficiently create a data paging UI. The built-in functions of LINQ provide two extension methods to make this work simple and efficient-the SKIP () and take () methods. The following two methods are used to return only 10 product objects to be displayed by specifying the parameter. If the connected database is SQL Server 2005,

searching for a second element that satisfies the condition and returning from the collection. If a collection contains a lot of elements, this kind of query can bring us considerable time efficiency.Like the first method, the take method receives an integer parameter, and then we return the number specified by the parameter. As with first, it returns directly from the current iteration, rather than waiting for the entire iteration to complete before

Problem You want to improve the performance of multiple queries, and you do not want to add additional encoding or configuration. Solution Suppose you have the model shown in Figure 13-8. Figure 13-8.A model with an associate and Its Related paycheck In this model, each associate (colleague) has 0 to multiple paychecks (salaries), and you have a LINQ

capitalized each stringAnd the length of each string is counted, and the anonymous type is also represented as temporary.II: Anonymous types in JavaScriptSerializerThis type I think we all know, but the higher performance way should be to use JsonConvert bar, but this is not the topic of this discussion, we focus on the anonymous type of JSON serialization can give usHow much convenience it brings, such as the following:1 class Program2 {3

three solutions with extremely high efficiency, while the quick modification and deletion operations of LINQ to SQL consume almost 10 times of EF, the performance of ado.net in adding data is really unsatisfactory, which is also related to the underlying Writing of our project. From the test results, we can see that the average efficiency of EF is 6 times that of LIN