Csharp/C Sharp by API/System.Data/CommandBehavior
CommandBehavior.SchemaOnly
<source lang="csharp"> using System; using System.Data; using System.Data.SqlClient; class SchemaOnlyCommandBehavior {
public static void Main() { SqlConnection mySqlConnection = new SqlConnection("server=localhost;database=Northwind;uid=sa;pwd=sa"); SqlCommand mySqlCommand = mySqlConnection.CreateCommand(); mySqlCommand.rumandText = "SELECT ProductID, ProductName, UnitPrice FROM Products WHERE ProductID = 1"; mySqlConnection.Open(); SqlDataReader productsSqlDataReader = mySqlCommand.ExecuteReader(CommandBehavior.SchemaOnly); DataTable myDataTable = productsSqlDataReader.GetSchemaTable(); foreach (DataRow myDataRow in myDataTable.Rows) { foreach (DataColumn myDataColumn in myDataTable.Columns) { Console.WriteLine(myDataColumn + "= " + myDataRow[myDataColumn]); if (myDataColumn.ToString() == "ProviderType") { Console.WriteLine(myDataColumn + "= " + ((System.Data.SqlDbType)myDataRow[myDataColumn])); } } } productsSqlDataReader.Close(); mySqlConnection.Close(); }
}
</source>
CommandBehavior.SingleRow
<source lang="csharp"> using System; using System.Data; using System.Data.SqlClient; class SingleRowCommandBehavior {
public static void Main() { SqlConnection mySqlConnection = new SqlConnection("server=localhost;database=Northwind;uid=sa;pwd=sa"); SqlCommand mySqlCommand = mySqlConnection.CreateCommand(); mySqlCommand.rumandText = "SELECT ProductID, ProductName, QuantityPerUnit, UnitPrice FROM Products"; mySqlConnection.Open(); SqlDataReader mySqlDataReader = mySqlCommand.ExecuteReader(CommandBehavior.SingleRow); while (mySqlDataReader.Read()) { Console.WriteLine("mySqlDataReader[\" ProductID\"] = " + mySqlDataReader["ProductID"]); Console.WriteLine("mySqlDataReader[\" ProductName\"] = " + mySqlDataReader["ProductName"]); Console.WriteLine("mySqlDataReader[\" QuantityPerUnit\"] = " + mySqlDataReader["QuantityPerUnit"]); Console.WriteLine("mySqlDataReader[\" UnitPrice\"] = " + mySqlDataReader["UnitPrice"]); } mySqlDataReader.Close(); mySqlConnection.Close(); }
}
</source>