Database Reference
In-Depth Information
10. Persistence. In object-oriented programming, persistence refers to the ability to have a program
remember its data from one execution to the next. Although this is unusual in programming lan-
guages, it is common in all database systems. After all, one of the fundamental capabilities of any
DBMS is its ability to store data for later use.
11. Performance. An OODBMS should have sufficient performance capabilities to manage very large
databases effectively.
12. Concurrent update support. An OODBMS must support concurrent update. (You learned about
concurrent update in Chapter 7.)
13. Recovery support. An OODBMS must provide recovery services. (You learned about recovery
services in Chapter 7.)
14. Query facility. An OODBMS must provide query facilities. (You learned about query facilities
such as QBE and SQL in Chapter 2 and Chapter 3, respectively.)
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