NextResult Method (MySqlDataReader)
Advances the data reader to the next result, when reading the results of batch SQL statements.
public override bool NextResult()
'Declaration
Public Overrides Function NextResult() As Boolean
Return Value
true if there are more result sets; otherwise, false.
The following example shows how to use
NextResult to iterate through set of results.
public void FetchResults(MySqlConnection myConnection)
{
MySqlCommand cmd = new MySqlCommand("SELECT EmpNo, EName FROM Test.Emp;SELECT * FROM Test.Dept");
cmd.FetchAll = true;
cmd.Connection = myConnection;
myConnection.Open();
try
{
MySqlDataReader reader = cmd.ExecuteReader();
Console.WriteLine("Quantity of results: " + reader.ResultCount);
while (true)
{
Console.WriteLine("---------------Result number " + reader.CurrentResult);
while (reader.Read())
{
Console.Write(reader.CurrentRecord);
Console.Write("\t"+reader[0]);
Console.WriteLine("\t"+reader[1]);
}
if (!reader.NextResult())
{
break;
}
Console.ReadLine();
}
}
finally
{
myConnection.Close();
}
}
Public Sub FetchResults(ByVal myConnection As MySqlConnection)
Dim cmd As MySqlCommand = New MySqlCommand("SELECT EmpNo, EName FROM Test.Emp;SELECT * FROM Test.Dept")
cmd.FetchAll = True
cmd.Connection = myConnection
myConnection.Open()
Try
Dim reader As MySqlDataReader = cmd.ExecuteReader()
Console.WriteLine(String.concat("Quantity of results: ", reader.ResultCount))
While True
Console.WriteLine(String.Concat("---------------Result number ", reader.CurrentResult))
While reader.Read()
Console.Write(reader.CurrentRecord)
Console.Write(String.Concat(" ", reader(0)))
Console.WriteLine(String.Concat(" ", reader(1)))
End While
If Not reader.NextResult() Then
Exit While
End If
Console.ReadLine()
End While
Finally
myConnection.Close()
End Try
End Sub
Target Platforms: Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2