database_key/5

Documentation
- Reference manual
- Packages
  - Constraint Query Language A high level interface to SQL databases
    - library(cql/cql): CQL - Constraint Query Language
      - Hooks
        
        Statistical Hooks
        
        cql_set_module_default_schema/1
        
        cql_get_module_default_schema/2
        
        cql_goal_expansion/3
        
        cql_runtime/7
        
        cql_temporary_column_name/4
        
        cql_show/2
        
        statistic_monitored_attribute/3
        
        attribute_domain/4
        
        database_identity/3
        
        database_key/5
        
        cql_normalize_name/3
        
        register_database_connection_details/2

Availability::- use_module(library(cql/cql)).

database_key(?Schema:atom, ?EntityName:atom, ?ConstraintName:atom, ?KeyColumnNames:list, ?KeyType)

`KeyColumnNames`	list of atom in database-supplied order
`KeyType`	identity ; 'primary key' ; unique