# use-db-relation
Relation references, kinds, cardinality labels, endpoints, and relationship metadata.
This crate is part of the use-database facade workspace. It provides small,
engine-neutral vocabulary types and metadata containers. It does not connect to
databases, execute queries, run migrations, parse SQL, or model engine-specific
behavior.
## Example
~~~rust
use use_db_relation::{Cardinality, RelationEndpoint};
let endpoint = RelationEndpoint::new("users", true).expect("valid endpoint");
assert_eq!(endpoint.label(), "users");
assert_eq!(Cardinality::ManyToMany.as_str(), "many-to-many");
~~~