private void WhereClause()
{
tokenizer.Match("WHERE");
do
{
if (tokenizer.Token == "AND") tokenizer.Match("AND");
string Field = tokenizer.Token;
tokenizer.GetToken();
tokenizer.Match("=");
string value = tokenizer.Token;
Where w = new Where();
w.Field = Field;
w.Value = value;
((SelectQuery)this.Query).Wheres.Add(w);
tokenizer.GetToken();
} while (tokenizer.Token == "AND");
}