SqlException: The executeQuery method must return a result set.

executeQuery returns a result set.  Use executeUpdate instead or review the sql.

• boolean execute() Executes the SQL statement in this PreparedStatement object, for any kind of SQL statement.

• ResultSet executeQuery() Executes the SQL query in this PreparedStatement returns the ResultSet for the Query(Select ...)

• int executeUpdate() Executes the SQL statement in this PreparedStatement returns total successful count, which must be an SQL INSERT, UPDATE or DELETE statement; or an SQL statement that returns nothing, such as a DDL statement.