Idea Summary
When defining SQL region content for reports and charts APEX developers frequently reference application session state using bind variables, for example …where driverid = :p10_driver_id. It would be nice to warn the developer that :P10_driver_id does not exist when it does not exist.
Use Case
APEX knows if the bind variables exist. They may not exist when writing the query thus its fine to be a warning and not an error.
Preferred Solution (Optional)
in page designer and other places in apex you can validate your query; provide option to validate bind variables.