My read of GP's story is that the prepared queries varied by supplying different hard-coded parameters, in addition to some bound variables. For example, the WH

My read of GP's story is that the prepared queries varied by supplying different hard-coded parameters, in addition to some bound variables. For example, the WHERE clause might be "WHERE first=? AND last='Smith'". The 'first' argument is a bound variable, while the 'last' argument is part of the prepared query string.