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This article mainly introduces "how LINQ stored procedures are". In daily operation, I believe many people have doubts about what LINQ stored procedures are. The editor consulted all kinds of materials and sorted out simple and easy-to-use operation methods. I hope it will be helpful for you to answer the doubts about "how LINQ stored procedures are". Next, please follow the editor to study!

What is a stored procedure?

A stored procedure is a script stored in a database. Specifically, a stored procedure is a collection of T-SQL statements that are saved and can accept or return user-supplied parameters. The most basic benefit of using stored procedures is that multiple SQL statements can be packaged and executed as a group, and the efficiency of the application can be improved if stored procedures are used properly in the application.

Advantages of stored procedures

1. Stored procedures can usually bring performance improvements to the system because the database can optimize the data access plan used by the process and implement caching for subsequent reuse.

two。 Stored procedures can be protected separately within the database. The administrator can grant the client permission to execute the stored procedure without giving it access to the underlying table.

3. Stored procedures can make maintenance easier because it is usually easier to modify stored procedures than to change SQL statements contained in hard-coded code within deployed components. However, with the increase of business logic implemented by stored procedures, this advantage will diminish.

4. Stored procedures add an additional layer of abstraction to the underlying database schema. The client of the stored procedure is isolated from the implementation details of the stored procedure and the underlying pattern.

5. Stored procedures can reduce network traffic. SQL statements can be executed in batches, and applications do not have to send multiple SQL requests.

III. Shortcomings of stored procedures

In some cases, stored procedures are still not recommended, or it is not feasible to use them.

1. When the application involves a large amount of business logic and processing, if the business logic is implemented entirely with stored procedures, it will bring too much load to the server. Examples of this type of processing include data transfer, data traversal, data conversion, and intensive computing operations. This type of processing should be transferred to business processes or data access logic components, which are more scalable than database servers.

two。 Do not put all business logic into stored procedures, otherwise when you need to modify business logic in T-SQL, it will affect the maintenance and flexibility of the application. For example, an application that supports multiple relational database management systems does not have to maintain separate stored procedures for each system.

3. In most cases, writing and maintaining stored procedures is a specialized skill that not all developers have. This situation may introduce bottlenecks to the project development plan.

IV. Advantages of LINQ stored procedures

LINQ technology is a breakthrough innovation in Visual Studio 2008 and .NET Framework 3.5. it builds a bridge between object domain and data domain. In addition, the LINQ query function can be embedded directly into the programming languages supported by the .NET Framework 3.5. To sum up, it has the following advantages: query syntax is simple and easy to write; syntax errors and query data types are more secure; LINQ stored procedures provide strong filtering, sorting and grouping capabilities; easy to deal with multi-data sources and multi-data format data.

Fifth, the era requires that LINQ stored procedures are still indispensable

Although LINQ stored procedures have obvious advantages in the new development environment, they still have performance problems in handling complex database queries. On the other hand, LINQ to SQL technology is based on ADO.NET, and traditional SQL query resources are still widespread in a certain period of time. Therefore, LINQ still provides compatibility support for traditional SQL queries. It is proved that traditional SQL query statements and stored procedures can still be called directly in LINQ to SQL.

Therefore, the actual development should be based on the actual database resources, in the current situation, the combination of LINQ query and appropriate traditional SQL query is still the recommended database scheme.

At this point, the study of "what the LINQ stored procedure is like" is over. I hope to be able to solve your doubts. The collocation of theory and practice can better help you learn, go and try it! If you want to continue to learn more related knowledge, please continue to follow the website, the editor will continue to work hard to bring you more practical articles!

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