Interested to Buy Any Domain ? << Click Here >> for more details...
waht is meant data independence?
- 2 Answers
- 7393 Views
- I also Faced
- E-Mail Answers
Answers were Sorted based on User's Feedback
Answer / siva k mahen
The ability to change the organization of the database
itself without changing the application software.
| Is This Answer Correct ? | 9 Yes | 2 No |
If you change internal low level abstraction database then they dont affect on higl level abstraction.
There are two types of data independance:
1) Physical data independance:
If you change physical level of data then they dont affect on logical level.
2) Logical data independance:
If you change logical level of data then they dont affect on view level
Summary: The ability to modify the schema defination in one level should not affect the schema defination in next higher level.
| Is This Answer Correct ? | 2 Yes | 0 No |
What are the three tiers in a 3 tier architecture?
What is Record-at-a-time?
What does n tier mean?
What is the difference between layer and tier?
What is a Database system?
Which is super key?
What is one tier architecture?
What are page splits? : sql server architect
What is hypermedia database?
Brief theory of Network, Hierarchical schemas and their properties
What are the three levels of database architecture?
What is BCNF (Boyce-Codd Normal Form)?
-
Oracle (3259) - SQL Server (4518)
- MS Access (429)
- MySQL (1402)
- Postgre (483)
- Sybase (267)
- DB Architecture (141)
- DB Administration (291)
- DB Development (113)
- SQL PLSQL (3330)
- MongoDB (502)
- IBM Informix (50)
- Neo4j (82)
- InfluxDB (0)
- Apache CouchDB (44)
- Firebird (5)
- Database Management (1411)
- Databases AllOther (288)
