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This article will explain in detail how to debug Visual Studio IDE. The editor thinks it is very practical, so I share it with you for reference. I hope you can get something after reading this article.

Visual Studio has a lot to learn. Here we mainly introduce Visual Studio IDE, including debugging database objects in ASP.NET programs. SQL Server 2000 allows us to debug stored procedures directly in query Analyzer (for more information, see debugging stored procedures with query Analyzer in SQL Server 2000) to SQL Server 2005 today, and this feature has been transferred to SQL Servr Management Studio and Visual Studio IDE. Using this technique, we can debug stored procedures step by step in Visual Studio. You can also set breakpoints in stored procedures so that when you debug your program, these breakpoints will take effect.

Debugging is supported in all versions of SQL Server 2005, including the Express version. However, only Team Systems and Professional versions of Visual Studio can debug stored procedures within IDE. In short, if you are using the Visual Web Developer or Visual Studio Standard version, you cannot debug or enter the stored procedure step by step while debugging the application.

In this article, I will demonstrate how to debug stored procedures for SQL Server 2005 through Visual Studio IDE. We will see both how to debug the stored procedure step by step in IDE and how to set a breakpoint for the stored procedure and get to the breakpoint when debugging the application. Keep looking down and you'll know more!

Different methods of SQL Server debugging

In today's SQL Server 2005, all database debugging takes place inside Visual Studio IDE. Objects in the database, such as stored procedures, triggers, and user-defined functions (UDFs), can be debugged. Visual Studio provides three ways to debug these database objects.

Debug directly in the ◆ database-in Server Explorer in Visual Studio, right-click a database object and select "step into * *". For example, when you right-click a stored procedure, the pop-up menu contains an option to step into the stored procedure.

◆ application debugging-set breakpoints within the database object, and then debug through the application. When the relevant ASP.NET program is debugged and the database object is called, Visual Studio pauses at the breakpoint you set, allowing us to debug the T-SQL statement step by step.

◆ debugs in the SQL Server project-you can create a SQL Server project in Visual Studio. The project can contain T-SQL and database objects, and these database objects can be debugged through the SQL Server project itself.

For more information about these three different SQL Server debugging, see Overview of T-SQL and CLR Debugging in SQL Server 2005.

It is also important to note that the SQL Server debugging described next in this article is based on the local database. Of course, both local and remote databases can be debugged. The local database refers to the database deployed on the local machine; the remote database refers to the deployment of the database on a machine other than the local machine. Debugging a local database requires no additional settings, but debugging a remote database is much more complex.

This article mainly introduces how to debug directly in the database and how to debug a local database in the ASP.NET program. To be more specific, we will debug the SQL Server 2005 Express version of the database under the App_Data folder, which you can download and sample programs at the end of this article. In other future articles, we will examine how to debug the database in the SQL Server project. Next, I'll give you a brief introduction to the main points related to debugging remote databases.

Debug remote database

The most critical point in debugging a remote database is to ensure that the Windows user who starts Visual Studio is the same user as the user who connects to the remote database. In addition, the user must belong to the sysadmin role.

For example, you can create a user named "TestDebug" in the domain of Windows. Then make it possible to log in to the remote SQL Server database and add the user to the sysadmin role. In addition, you need to use the "TestDebug" user to log in to your computer, or make sure that the Visual Studio started with the runas.exe command is running under the "TestDebug" user. In this way, you can use the method we demonstrate next to debug.

More details can be found in this book: Hitchhiker's Guide to Visual Studio and SQL Server, Seventh Edition.

Debug directly in the database

Debugging directly in the database is the easiest way to debug stored procedures for SQL Server 2005. In Visual Stuido's IDE, you can choose to step through the stored procedure, and then step into the stored procedure one statement at a time, and you can also check and modify the T-SQL variables and parameters in the stored procedure. The archive available for download at the end of this article includes a SQL Server 2005 Express version of the Northwind database. I added a stored procedure called "DoThings" to it, which has a parameter @ CategoryID. This is a stored procedure of little practical value, but it has a lot of T-SQL statements and variables, as well as a parameter, which will enable us to better practice debugging stored procedures.

Debugging database objects in ASP.NET program

Debugging directly in the database makes it very easy to debug stored procedures directly in Visual Studio IDE. However, sometimes we need to debug when the ASP.NET program calls the relevant stored procedure. In this way, we can debug a database object when it is called.

This debugging method is integrated into the debugging of the application. To use it, you need to do the following:

◆ adds breakpoints to the database objects you want to debug. Database objects are debugged only if they contain breakpoints. For example, in general, when an application calls a stored procedure, you cannot enter the inside of the stored procedure. If you want to debug the stored procedure, you must set a breakpoint inside the stored procedure.

◆ configures the application so that it can debug SQL Server objects. This is relatively easy, you just need to select a check box.

◆ disables connection pooling. Connection pooling can improve performance by allowing programs to use some idle connection in a connection pool to connect to the database. If you enable it, you will not be able to debug correctly. Because connection pooling is enabled by default, we must disable it when setting the connection string. When you have finished debugging SQL Server objects in ASP.NET programs, be sure to re-enable connection pooling

This is the end of the article on "how to debug Visual Studio IDE". I hope the above content can be of some help to you, so that you can learn more knowledge. if you think the article is good, please share it for more people to see.

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