Commands that are expected to return a result set - queries - have distinctive
methods that are enforced. That is it will be an error to call such a method
with an SQL command that does not produce a result set. So for commands like
SELECT, use the query functions. For other commands, like
INSERT/UPDATE/CREATE/etc, use exec.
Internally, Prepared simply wraps a PreparedImpl with
RefCounted,
and offers access to the PreparedImpl members via "alias this".
See the PreparedImpl documentation for the bulk of the Prepared interface.
Encapsulation of a prepared statement.
Commands that are expected to return a result set - queries - have distinctive methods that are enforced. That is it will be an error to call such a method with an SQL command that does not produce a result set. So for commands like SELECT, use the query functions. For other commands, like INSERT/UPDATE/CREATE/etc, use exec.
Internally, Prepared simply wraps a PreparedImpl with RefCounted, and offers access to the PreparedImpl members via "alias this".
See the PreparedImpl documentation for the bulk of the Prepared interface.