insert into logger_projections (projection_id, project_id, variable_id, start_time, end_time, value) values (:projection_id, :project_id, :variable_id, :start_time, :end_time, :value) delete from logger_projections where projection_id = :projection_id select projection_id, project_id, variable_id, start_time, end_time, value from logger_projections where projection_id = :projection_id