How to read a table schema
using System;
using System.Data;
using System.Data.SqlClient;
class SchemaOnlyCommandBehavior
{
public static void Main()
{
SqlConnection mySqlConnection =new SqlConnection("server=(local)\\SQLEXPRESS;database=MyDatabase;Integrated Security=SSPI;");
SqlCommand mySqlCommand = mySqlConnection.CreateCommand();
mySqlCommand.CommandText ="SELECT ID, FirstName, LastName FROM Employee WHERE ID = 8";
mySqlConnection.Open();
SqlDataReader productsSqlDataReader =mySqlCommand.ExecuteReader(CommandBehavior.SchemaOnly);
DataTable myDataTable = productsSqlDataReader.GetSchemaTable();
foreach (DataRow myDataRow in myDataTable.Rows)
{
Console.WriteLine("\nNew column details follow:");
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();
}
}
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