Represents a result set.
Column labels are case-insensitive, quotes are not supported. The first column has the column index 1.
Updatable result sets: Result sets are updatable when the result only contains columns from one table, and if it contains all columns of a unique index (primary key or other) of this table. Key columns may not contain NULL (because multiple rows with NULL could exist). In updatable result sets, own changes are visible, but not own inserts and deletes.