ADO.NET Provider for Excel Services

Build 20.0.7587

Result Sets

You can access the same column information about the results of a query that you can for table schemas. See Columns for the columns returned.

Retrieving Result Set Metadata

You can use the GetSchemaTable method of the ExcelServicesDataReader to retrieve result set metadata. Call GetSchemaTable after calling ExecuteReader.

Each row of the DataTable describes a column in the query's result.


string connectionString = "Url=;;Password=password;File=Book1.xlsx;";

using (ExcelServicesConnection conn = new ExcelServicesConnection(connectionString)) {
  ExcelServicesCommand cmd = new ExcelServicesCommand("SELECT * FROM Account WHERE Industry = 'Floppy Disks'", conn);
  ExcelServicesDataReader rdr = cmd.ExecuteReader();
  DataTable schemaTable = rdr.GetSchemaTable();
  foreach (DataRow row in schemaTable.Rows) {
    foreach (DataColumn col in schemaTable.Columns) {
      Console.WriteLine("{0}: {1}", col.ColumnName, row[col]);


Dim connectionString As String = "Url=;;Password=password;File=Book1.xlsx;"

Using conn As New ExcelServicesConnection(connectionString)
  Dim cmd As New ExcelServicesCommand("SELECT * FROM Account WHERE Industry = 'Floppy Disks'", conn)
  Dim rdr As ExcelServicesDataReader = cmd.ExecuteReader()
  Dim schemaTable As DataTable = rdr.GetSchemaTable()
  For Each row As DataRow In schemaTable.Rows
    For Each col As DataColumn In schemaTable.Columns
      Console.WriteLine("{0}: {1}", col.ColumnName, row(col))
End Using

Copyright (c) 2020 CData Software, Inc. - All rights reserved.
Build 20.0.7587