You can invoke a stored procedure using AvroCommand in the same way as any other SQL stored procedure. To instantiate a AvroCommand object, provide the name of the stored procedure and a AvroConnection instance as arguments to the constructor. Set the value of the CommandType property to "StoredProcedure" and add the parameters as key-value pairs to the Parameters collection of the AvroCommand instance.

C#

string connectionString = "URI=C:\folder\table.avro;";

using (AvroConnection connection = new AvroConnection(connectionString)) {
  AvroCommand cmd = new AvroCommand("GetOAuthAccessToken", connection);
  cmd.CommandType = CommandType.StoredProcedure; 
  cmd.Parameters.Add(new AvroParameter("@CallbackURL", "http://localhost"));
  // Add other parameters as needed ...

  AvroDataReader rdr = cmd.ExecuteReader();
  while (rdr.Read()) {
    for (int i = 0; i < rdr.FieldCount; i++) {
      Console.WriteLine(rdr.GetName(i) + " --> " + rdr[i]);
    }
    Console.WriteLine();
  }
}

VB.NET

Dim connectionString As String = "URI=C:\folder\table.avro;"

Using connection As New AvroConnection(connectionString)
  Dim cmd As New AvroCommand("GetOAuthAccessToken", connection)
  cmd.CommandType = CommandType.StoredProcedure
  cmd.Parameters.Add(New AvroParameter("@CallbackURL", "http://localhost"))
  ' Add other parameters as needed ...

  Dim rdr As AvroDataReader = cmd.ExecuteReader()
  While rdr.Read()
	  For i As Integer = 0 To rdr.FieldCount - 1
		  Console.WriteLine(rdr.GetName(i) + " --> " + rdr(i))
	  Next
	  Console.WriteLine()
  End While
End Using

Alternatively, you can set the parameters of a stored procedure in the text of the command. The support for stored procedure statements follows the standard form shown below:

"EXECUTE my_proc @first = 1, @second = 2, @third = 3;"

"EXEC my_proc @first = 1, @second = 2, @third = 3;"

To execute a parameterized query, add parameters as key-value pairs to the Parameters collection of the AvroCommand instance.

C#

string connectionString = "URI=C:\folder\table.avro;";

using (AvroConnection connection = new AvroConnection(connectionString)) {
  AvroCommand cmd = new AvroCommand("EXECUTE GetOAuthAccessToken CallbackURL = @CallbackURL;", connection); 
  cmd.Parameters.Add(new AvroParameter("@CallbackURL", "http://localhost"));
  // Add other parameters as needed ...

  AvroDataReader rdr = cmd.ExecuteReader();
  while (rdr.Read()) {
    for (int i = 0; i < rdr.FieldCount; i++) {
      Console.WriteLine(rdr.GetName(i) + " --> " + rdr[i]);
    }
    Console.WriteLine();
  }
}

VB.NET

Dim connectionString As String = "URI=C:\folder\table.avro;"

Using connection As New AvroConnection(connectionString)
  Dim cmd As New AvroCommand("EXECUTE GetOAuthAccessToken CallbackURL = @CallbackURL;", connection)
  cmd.Parameters.Add(New AvroParameter("@CallbackURL", "http://localhost"))
  ' Add other parameters as needed ...

  Dim rdr As AvroDataReader = cmd.ExecuteReader()
  While rdr.Read()
	  For i As Integer = 0 To rdr.FieldCount - 1
		  Console.WriteLine(rdr.GetName(i) + " --> " + rdr(i))
	  Next
	  Console.WriteLine()
  End While
End Using