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 CompositeDataReader to retrieve result set metadata. Call GetSchemaTable after calling ExecuteReader.
Each row of the DataTable describes a column in the query's result.
C#
string connectionString = "Host=myHost;Domain=myDomain;DataSource=myDataSource;User=myUser;Password=myPassword";
using (CompositeConnection conn = new CompositeConnection(connectionString)) {
CompositeCommand cmd = new CompositeCommand("SELECT * FROM Products WHERE ProductName = 'Konbu'", conn);
CompositeDataReader 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]);
}
}
}
VB.NET
Dim connectionString As String = "Host=myHost;Domain=myDomain;DataSource=myDataSource;User=myUser;Password=myPassword"
Using conn As New CompositeConnection(connectionString)
Dim cmd As New CompositeCommand("SELECT * FROM Products WHERE ProductName = 'Konbu'", conn)
Dim rdr As CompositeDataReader = 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))
Next
Next
End Using