The CMS experiment has developed a new system called DBS to help users easily find data in their physics data catalog. This system includes a special query language that makes it simple for data managers and physicists to search for information without needing to know complex database details. The language uses a tool called ANTLR to create queries, which are then translated into SQL to retrieve data from the database. This approach streamlines the process of accessing data and helps users navigate the system more efficiently.