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Fourth Normal Form (4NF) is useful because it addresses multi-valued dependencies, which can lead to redundancy and anomalies in database design. By ensuring that no table contains two or more independent multi-valued facts about an entity, 4NF helps to eliminate data duplication and maintain data integrity. This normalization process improves the efficiency of data retrieval and updates, making databases more manageable and consistent over time. Ultimately, 4NF contributes to a cleaner, more organized database structure that enhances overall performance.
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Why is a tsunami useful?
Tsunami is useful to generate electricity.
How useful was the Antarctic ozone hole?
The Antarctic ozone hole is not useful. It was harmful.
What is useful types of microorganism?
Type your answer here... What is useful of a microorganism
How is media is useful and harmful for us?
media is very useful
What do you call the useful chemicals you get from food?
Proteins are useful chemicals that you obtain from food.
Why 4NF is more desirable Normal Form than BCNF?
Because 4nf minimize the redundancy as well as make storage management..
What is the basic purpose of 4NF?
The purpose of 4NF, or the 4th Normal Form, is to remove multivalued dependencies. This means that by adding a new value to the database, multiple other values are not required to maintain consistency.
What is 4NF?
a relation R is in 4NF if and only if,whenever there exist a MVD in R, say A->>B, then all attribute of R are also FD on A. C.J Date by zahir shah MSCSype your answer here...
Why 4NF is preferable then bcnf .with example?
Normalization is a process to reduce the redundancy by removing function dependencies BCNF (Boyece code normal form) has all functional dependencies A to B are trivial of discriminator should be superkey. To get relation in BCNF, Splitting the relation schema not neccessarily preserve all functional dependency, Loss less decomposition and dependency are main points for the normalization sometime, it is not possible to get a BCNF decomposition that is dependency, preserving. While 4NF has very similar definition as BCNF. A relational Schema is in 4NF, if all multivalued dependencies A to B are trivial and determinate A is superkey of schema. If a relational schema is in 4nf, it is already in BCNF. and 4NF decomposition preserve the all functional dependency. so 4NF is preferable than to have BCNF.
What are 4nf and 5nf?
4th and 5th Normal Form - to do with databases. That's all I know sorry.
Different normalisation forms in database?
There are several normal forms are available in DBMS.those are1NF,2NF,3NF,BCNF,4NF,PJNF(project Join),DKNF(Domain Key).
What is the Superlative and comparative to the word useful?
Most useful and more useful.
What is the comparative and superlative forms of useful?
more useful, the most useful
What is the comparative from useful?
The comparative form of "useful" is "more useful."
Comparative and superlative forms of useful?
more useful, most useful
What is a sentence with the word useful?
Computers are so useful to us.Bert is not a very useful person.I find that the phone is a useful invention.Make yourself useful and pass me the spanner.Hopefully these sentences are useful to you.
How are mirrors useful on roads?
how are mirrors useful ? how are mirrors useful ?
