The SAPDevRuleSet security rule set does not contain any rules. Create masking rules in the SAPDevRuleSet security rule set that mask data when a request comes from a development tool.

For example, the development team works from 8:00 a.m. to 5:00 p.m. You want to block access to the database from development tools when the development team is not at work. Create a security rule in the SAPDevRuleSet security rule set that uses the Time of Day matcher to block requests to the database at all other times of day.