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Devart.Data.MySql Namespace / MySqlCommand Class
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    MySqlCommand Class
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    Represents a SQL statement or stored procedure to execute against MySQL.
    Syntax
    Remarks
    The MySqlCommand class provides the following methods for executing commands against the MySQL database:
    Item Description
    ExecuteReader Executes commands that return rows.
    Devart.Common.DbCommandBase.ExecutePageReader Returns a specific subset of rows when paging through the results of a query.
    ExecuteNonQuery Executes SQL commands such as INSERT, DELETE, UPDATE.
    ExecuteScalar Retrieves a single value (for example, an aggregate value) from a data source.

    If execution of the command results in a fatal MySqlException, the MySqlConnection may close. However, the user can reopen the connection and continue.

    This class supports cross-form data binding with the InterForm Technology.

    Example
    The following example uses the ExecuteReader method of MySqlCommand, along with MySqlDataReader and MySqlConnection, to select rows from a table.
    public void ReadMyData(string myConnString)
    {
      string mySelectQuery = "SELECT DeptNo, DName FROM Test.Dept";
      MySqlConnection myConnection = new MySqlConnection(myConnString);
      MySqlCommand myCommand = new MySqlCommand(mySelectQuery,myConnection);
      myConnection.Open();
      MySqlDataReader myReader = myCommand.ExecuteReader();
      try
      {
        while (myReader.Read())
        {
          Console.WriteLine(myReader.GetInt32(0).ToString() + ", " + myReader.GetString(1));
        }
      }
      finally
      {
      // always call Close when done reading.
      myReader.Close();
      // always call Close when done reading.
      myConnection.Close();
      }
    }
    Public Sub ReadMyData(myConnString As String)
      Dim mySelectQuery As String = "SELECT DeptNo, DName FROM Test.Dept"
      Dim myConnection As New MySqlConnection(myConnString)
      Dim myCommand As New MySqlCommand(mySelectQuery, myConnection)
      myConnection.Open()
      Dim myReader As MySqlDataReader = myCommand.ExecuteReader()
      Try
        While myReader.Read()
          Console.WriteLine(myReader.GetInt32(0).ToString() + ", " _
            + myReader.GetString(1))
        End While
      Finally
          ' always call Close when done reading.
          myReader.Close()
          ' always call Close when done with connection.
          myConnection.Close()
      End Try
    End Sub
    Inheritance Hierarchy

    System.Object
       System.MarshalByRefObject
          System.ComponentModel.Component
             System.Data.Common.DbCommand
                Devart.Common.DbCommandBase
                   Devart.Data.MySql.MySqlCommand

    See Also