ADO.NET Provider for SASDataSets

Build 21.0.7940

Querying with the DataAdapter

The CData ADO.NET Provider for SASDataSets implements two ADO.NET interfaces you can use to retrieve data from SAS Data Sets: SASDataSetsDataAdapter and SASDataSetsDataReader objects. Whereas SASDataSetsDataAdapter objects retrieve a single result set of all the data that matches a query, SASDataSetsDataReader objects fetch data in subset increments as needed.

Using the SASDataSetsDataAdapter

Use the adapter's Fill method to retrieve data from the data source. An empty DataTable instance is passed as an argument to the Fill method. When the method returns, the DataTable instance is populated with the queried data. Note that the SASDataSetsDataAdapter is slower than the SASDataSetsDataReader because the Fill method needs to retrieve all data from the data source before returning.

The following example selects the Id and Name columns of the Account table:

C#

string connectionString = "URI=C:\myfolder;";

using (SASDataSetsConnection connection = new SASDataSetsConnection(connectionString)) {
  SASDataSetsDataAdapter dataAdapter = new SASDataSetsDataAdapter(
  "SELECT Id, Name FROM Account", connection);

  DataTable table = new DataTable();
  dataAdapter.Fill(table);

  Console.WriteLine("Contents of Account.");

  foreach (DataRow row in table.Rows) {
    Console.WriteLine("{0}: {1}", row["Id"], row["Name"]);
  }
}

VB.NET

Dim connectionString As String = "URI=C:\myfolder;"

Using connection As New SASDataSetsConnection(connectionString)
  Dim dataAdapter As New SASDataSetsDataAdapter("SELECT Id, Name FROM Account", connection)

  Dim table As New DataTable()
  dataAdapter.Fill(table)

  Console.WriteLine("Contents of Account.")

  For Each row As DataRow In table.Rows
    Console.WriteLine("{0}: {1}", row("Id"), row("Name"))
  Next
End Using

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Build 21.0.7940