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Data redundancy is a data organization issue that allows the unnecessary
duplication of data within your Microsoft Access database. A change
or modification, to redundant data, requires that you make changes
to multiple fields of a database. While this is the expected behaviour
for flat file database designs and spreadsheets, it defeats the purpose
of relational database designs. The data relationships, inherent in
a relational database, should allow you to maintain a single data
field, at one location, and make the database's relational model
responsible to port any changes, to that data field, across the database.
Redundant data wastes valuable space and creates troubling database
maintenance problems
What else can I help you with?
What is data redundancy and problems associated with it?
Duplication of data is data redundancy. It leads to the problems like wastage of space and data inconsistency.
What kind of problems are associated with redundancy in databases?
problems associated with redundancy in data base,Redundancy occurs in same data multiple time tends to several problems some times redundancy controlling is necessary to improve the performance of the query.
What are a couple of problems whit a traditional file environment?
Data redundancy Lack of data redundancy Data inconsistency Data security
Cyclic redundancy check error?
A cyclic redundancy check error or CRC error occurs when the data verification value is a redundancy. This is used in detecting common errors caused by noise in transmission channels.
What is Drawbacks of using file system to store data?
* Data redundancy and inconsistency. * Data isolation * Problem in atomicity of data * Difficulty to access data. * Security Problems
How can a primary key be useful in controlling data redundancy?
controlling data redundancy
DO you have redundancy of records in distributed DBMS?
Redundancy means duplicacy of data or repetitive data. In distributed database case the data is stored in different systems . So the answers is yes there can be redundancy of records / data.In distributed database , data is stored in different systems. Since the data is distributed there is redundancy of records.
What are three types of redundancy checks used in data communications?
coding redundancy interpixel redundancy psycovisual redundancy
What is difference between the data validation and data redundancy?
one is a validation the other is redundancy clue is in the name
What is data redundacy?
Data redundancy means storage of data.
What is Data redundancy in DBMS?
In database we store data however the can be redundant. Redundancy means repetitive data that is taking extra storage space . So to reduce or prevent the storage space we should eliminate redundancy or just reduce it.
What is an example of data redundancy?
An example of data redundancy is when the same information is stored in multiple places in a database. For example, if customer addresses are stored in both an "order details" table and a "customer information" table, it creates redundancy. This redundancy can lead to inconsistencies if the data is not properly maintained.
