Practical Database Programming With Visual C# NET- P6

Practical Database Programming With Visual C#.NET- P6

... Selection Query with Visual C#. NET B. Next we need to check whether a valid database is still connected to our project, in other words, a connection between our project and our database is still ... Selection Query with Visual C#. NET B. A typical LINQ query structure is created and executed to retrieve back all related infor-mation for the selected faculty member. The facultyinfo is a C# 2008 ... Split-Merge on www.verypdf.com to remove this watermark.318 Chapter 5 Data Selection Query with Visual C#. NETprivate void cmdSelect_Click(object sender, EventArgs e) { string cmdString = "SELECT...

Practical Database Programming With Visual C#.NET- P7

... infor-mation related to the student_id. The scinfo is a Visual C# 2008 implicitly typed local variable with a data type var, and the Visual C# 2008 can automatically convert this var to any suitable ... to remove this watermark.344Chapter 5 Data Selection Query with Visual C#. NET5.19 QUERY DATA USING RUNTIME OBJECTS TO SQL SERVER DATABASE In the previous section you learned how to build ... SQL method. LINQ to SQL is a new technique available with Visual Studio 2008, and it is basically an API interface for working with SQL Server databases. We will ﬁ rst provide a detailed discussion...

Practical Database Programming With Visual C#.NET- P8

... Selection Query with Visual C#. NETC. If the user selected the ﬁ rst method, LINQ to SQL method, a standard LINQ query structure is adopted with an implicit typed local variable f_info with a data ... infor-mation for the selected faculty member. The facultyinfo is a Visual C# 2008 implicitly typed local variable with a data type var. The C# 2008 will be able to automatically convert this var to ... Chapter 5 Data Selection Query with Visual C#. NET F. If the user selected the DataAdapter Method, the Fill() method is called to ﬁ ll the StudentCourse table with the desired course_id. G....

Practical Database Programming With Visual C#.NET- P9

... cations on that duplicated project, in Visual C#. NET, this duplication is not as easy as that in Visual Basic.NET. The main issue is that in Visual C#. NET, the namespace is widely used to provide ... do with adding a new record into a data table in the database. The data tables in the DataSet are only mappings of those real data tables in the database. To add this new record into the database, ... PDF Split-Merge on www.verypdf.com to remove this watermark.446Chapter 6 Data Inserting with Visual C#. NETand building errors when the project is compiled due to the inconsistency that exists...

Practical Database Programming With Visual C#.NET- P10

... watermark.494 Chapter 6 Data Inserting with Visual C#. NETtable in the database and should be read back and displayed in the form window. Let ’ s begin with the coding for the ﬁ rst step. 6.6.3 ... Server database and the Oracle database, all the codes we developed in the last section can be used to access the Oracle database to perform data insertion. The only difference between both databases ... Appendix E to get more detailed informa-tion on how to add and connect an Oracle database with your Visual C#. NET applica-tions using the Design Tools and Wizards as well as the associated...

Practical Database Programming With Visual C#.NET- P11

... to remove this watermark.Chapter 7Data Updating and Deleting with Visual C #. NET Practical Database Programming With Visual C#. NET, by Ying BaiCopyright © 2010 the Institute of Electrical ... 6 Data Inserting with Visual C#. NET III. Exercises 1. Figure 6.88 shows a stored procedure developed in the SQL Server database. Please develop a piece of code in Visual C#. NET to call this ... the database. 2. Figure 6.89 shows a piece of code developed in Visual C#. NET, and this coding is used to call a stored procedure in the Oracle database to insert a new record into the database. ...

Practical Database Programming With Visual C#.NET- P12

... Updating and Deleting with Visual C#. NET7.7 UPDATE AND DELETE DATA FOR ORACLE DATABASES USING RUNTIME OBJECTS Because of the coding similarity between the SQL Server and the Oracle databases for ... and Deleting with Visual C#. NETsary to update the primary key, or the faculty_id , in our Faculty table if we want to update any faculty information from the Faculty table in the database. Basically, ... three types of databases we used in this book: using stored procedures to update and delete data in (1) Microsoft Access 2007 database, (2) SQL Server database, and (3) Oracle database. To...

Practical Database Programming With Visual C#.NET- P13

... Server database is shown in Figure 7.48 . Please develop a piece of code in Visual C#. NET to call this stored procedure to update a record in the database. 2. A piece of code developed in Visual ... Server database, in this chapter we only use the SQL Server database and the Oracle database as our target databases to illustrate how to select, display, and manipulate data against our sample database ... to perform the database connection job in this Page_Load() method. A connection string is created with the database server name, database name, and security mode. D. A new database Connection...

Practical Database Programming With Visual C#.NET- P14

... Change the query string from the SQL Server database to the Oracle database. The Oracle database assignment operator =: is used to replace the SQL Server database assignment operator LIKE @. ... table has some relationships with other tables such as LogIn and the Course; that is, the Faculty table has some relationships with all four tables in our sample database, which include the ... building processes of ASP.NET Web applications to access databases are discussed with seven real Web application projects. Two popular databases, SQL Server and Oracle, are utilized as the target...

Practical Database Programming With Visual C#.NET- P15

... Services such as the C# Web Services, Java Web Services, and Perl Web Services. In this section we only concentrate on developing the ASP.NET Web Services using the Visual C#. NET 2008. Before ... when we created our sample database in Chapter 2 , we do not need any login ID and password for the database connection in our application. One important issue is the database we are using is ... all project data. 2. The code - behind page Service.cs contains the real Visual C#. NET codes for a simple Web Service. Visual Web Developer includes three default namespace declarations to help...

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