SQL Server: Dynamic where-clause

Question

Problem:

Ajax suggest-search on [n] ingredients in recipes. That is: match recipes against multiple ingredients.

For instance:

Answer 1

You could at least parametrize the where clausule to avoid SQL injection, something alike:

using System.Data;
using System.Data.SqlClient;
using System.Text;

class Foo
{
    public static void Main ()
    {
        string[] parameters = {"salt", "water", "flower"};
        SqlConnection connection = new SqlConnection ();
        SqlCommand command = connection.CreateCommand ();
        StringBuilder where = new StringBuilder ();
        for (int i = 0; i < parametes.Length; i++)
        {
            if (i != 0)
                where.Append (",");
            where.AppendFormat ("@Param{0}", i);
            command.Parameters.Add (new SqlParameter ("Param" + i, parameters [i]));
        }
    }
}