Relational DBMS Functionality
Relational DBMSs provide a variety of functionalities:
- storing/modifying data and meta-data (data defintions)
- constraint definition/storage/maintenance/checking
- declarative manipulation of data (via SQL)
- extensibility via views, triggers, procedures
- query re-writing (rules), optimisation (indexes)
- transaction processing, concurrency/recovery
- etc. etc. etc.
Common feature of all relational DBMSs: relational model, SQL.
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