DBMS Functions

Functional Functions...

• Data storage, retrieval and update (physilitates users doing these)
• User accessible catalog (catalog w/ descriptions of data items accessible by users)
• Transaction support (mechanism that ensures all or no updates are made from a transaction)
• Concurrency control services (mechanism that makes sure the DB is updated correctly when multi users are using the DB at the same time)
• Recovery services (mechanism for recovering the DB if it's damaged)
  
• Authorization services (mech that ensures only authorized users can access the DB)
• Support for data communication (DB has to have a means of working with communication software)
• Integrity services......................