... The ability to call stored procedures using a DataAdapter is a very powerful addition to ADO.NET. For example, you can use a storedproceduretoadd a row to a table containing an identity column, ... Using Stored Procedures to Add, Modify, and Remove Rows from the Database You can get a DataAdapter object to call stored procedures to add, modify, and remove rows from the database. These procedures ... do additional work in a storedprocedure such as inserting a row into an audit table when a row is modified. You'll see examples of both these scenarios in this section. Tip Using stored...
... myDataTable.Rows .Add( ) is called toadd myNewDataRow to myDataTable. This causes the RowState of myNewDataRow to change to Added, which indicates myNewDataRow has been added to myDataTable. Finally, mySqlDataAdapter.Update() ... called to push the new row to the database. The AddProduct4() storedprocedure is run toadd the new row to the Products table, and the RowState of myNewDataRow changes to Unchanged. Modifying ... earlier in the section "Modifying a DataRow in a DataTable." The following method, named AddDataRow(), uses those steps toadd a new row to a DataTable: public static int AddDataRow(...
... System.Windows.Forms; using System.Text; using System.IO; [ Team LiB ] Recipe 8.11 Using a Single StoredProcedureto Update Multiple Changes to a SQL Server Database Problem You need to update a ... obtained from the system storedprocedure sp_xml_preparedocument and invalidates the handle. The syntax of the storedprocedure is: sp_xml_removedocument hDoc The argument is: hDoc An integer ... representing the XML document structure in a single table. The system storedprocedure sp_xml_preparedocument reads XML as input text using the MSXML parser and returns a handle that you can use to...
... Associates, Inc. All rights reserved.20Chapter 2CHAPTER 2 MySQL Stored Programming Tutorial 2 MySQL stored programming is a complex topic. We offer this chapter to introduceyou to the main and ... you will need to perform, including:• How to create a stored program• How to pass information in and out of the stored program• How to interact with the database• How to create procedures, ... need an edit-ing environment in which to write the storedprocedure and a tool that can submitthe storedprocedure code to the MySQL server.You can use just about any editor to write your...
... Casting c) Unboxing b) Boxing d) Overriding 33. __________is all about converting a reference type into a value type. [1.0] a) Overloading c) Unboxing b) Boxing d) Casting 34. Unboxing ... respect to destructors? [2.0] a) Destructors can be invoked explicitly. c) When an instance is destructed, the destructors in an inheritance chain are called in order, from most derived to ... statement’s syntax is incorrect. 51. using System; class Test { static void Main() { int @Main; int[] Static= new int[3]; @Main =100*Static[1]; Console.WriteLine(@Main); } } What...
... loại extend stored procedure được xem như system storedprocedure và ngược lại. 5. Remote StoredProcedure : Những storedprocedure gọi stored procedure ở server khác. Viết Stored Procedure ... sau về Stored Procedure: Ðể tạo một stored procedure bạn có thể dùng Enterprise Manager click lên trên StoredProcedure -> New StoredProcedure Trong ví dụ này ta sẽ tạo ra một storedprocedure ... @CustomerID smallintBEGIN TRANSACTIONIf not Exists(SELECT CustomerID FROM Customers WHERE [Name]=@CustomerName) This is a new customer. Insert this customer to the databaseBEGINSET @CustomerID=...
... sql;command.Parameters.AddWithValue("@Ma",txtMaHS.Text.Trim());command.Parameters.AddWithValue("@Ten",txtTenHS.Text.Trim());command.Parameters.AddWithValue("@Ns",dtNgaySinh.Value);command.Parameters.AddWithValue("@Dc",txtDiaChi.Text.Trim());command.Parameters.AddWithValue("@Diem",txtDiemTB.Text.Trim());command.Parameters.AddWithValue("@Lop",cboLop.SelectedValue.ToString());command.ExecuteNonQuery();5. Thực thi thông qua các Stored procedure a. Cách tạo Stored Procedure - Tạo mới Stored Procedure, chọn New Stored Procedure 6Hướng ... dụng được cách thực thi các câu lệnh SQL thông qua Stored Procedure. o StoredProcedure không có kết quả trả về (parameter input)o StoredProcedure có kết quả trả về (parameter output)2. ... câu lệnh SQLa. Thực hiện thêm mới thông tin một học sinh- Trước đây, chúng ta thiết lập câu lệnh insert như sau:string sql = "INSERT INTO HOCSINH VALUES('"txtMaHS.Text.Trim()...
... Main(string[] args) { IntIndexer myInd = new IntIndexer(5); myInd[1] = "Some Value"; myInd[4] = "Any Value"; myInd[2] = "Another Value"; Console.WriteLine("\nIndexer ... in the class B d) The function B.F( ) must be declared as “unsafe”. 229. using System; class IntIndexer{ private string[] myData; public IntIndexer(int size) { myData = new string[size]; ... to an int data type. 203. Which of the following is the correct syntax for declaring an indexer. [1.0] a) protected int this[int var1] c) public int this(int var1) b) public int classname[int...