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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.
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Why 4NF is more desirable Normal Form than BCNF?
Because 4nf minimize the redundancy as well as make storage management..
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.
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Beginner's All-purpose Symbolic Instruction Code
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Beginner's All-purpose Symbolic Instruction Code
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Gee Whiz Begineer's All Purpose Symbolic Instructions Code.
Why 4NF is more desirable Normal Form than BCNF?
Because 4nf minimize the redundancy as well as make storage management..
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...
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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.
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What are 4nf and 5nf?
4th and 5th Normal Form - to do with databases. That's all I know sorry.
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What does basic stands for?
Basic stands for Beginner's All-purpose Symbolic Instruction Code.
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