NextResult Method (MySqlDataReader)
On this page
Advances the data reader to the next result, when reading the results of batch SQL statements.
Syntax
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'Declaration
Public Overrides Function NextResult() As Boolean |
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public override bool NextResult() |
Return Value
true if there are more result sets; otherwise, false.
Example
The following example shows how to use
NextResult to iterate through set of results.
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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();
}
} |
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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 |
See Also
