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Boyce -Codd normal form which is one of the forms of dbms noramlizations.normalization is converting the relations or tables in a standard form.bcnf is based on functional dependencies that take into account all candidate keys.a relation is in bcnf if every determinant has a candidate key..:)
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What is bcnf explain with example?
define BCNF. Explain with appropriate example
What is overlapping key DBMS?
Overlapping Key is a type of candidate key which occurs in BCNF (Boyce –Codd Normal Form).In the difference between 3NF and BCNF Example : A 3NF table which does not have multiple overlapping candidate keys is guaranteed to be in BCNF. Depending on what its functional dependencies are, a 3NF table with two or more overlapping candidate keys may or may not be in BCNF.
Explain the link between hardware and application software?
DBMS
What is the difference between 3NF and BCNF?
Boyce-codd normal form(BCNF) was proposed as a simpler form of 3NF,but it was found to be stricter than 3NF,because every relation in BCNF is also in 3NF.However a relation in 3NF is not necessarily in BCNF.
Boyce-Codd normal form BCNF?
Yes, acronym BCNF stands for 'Boyce-Codd Normal Form'.
Explain the centralized DBMS architecture in detail?
combines everything into a single system including, DBMS software,hardware, application programs and user interface
Draw a neat diagram of components of DBMS and explain?
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Explain the types of dbms users?
There are four types of DBMS users,Naive UsersOnline UsersApplication Program UsersDatabase AdministratorNote: The description of above points is currently not available.
Is a relation in bcnf always in 3nf?
Yes.
Explain the three schema architecture of DBMS?
Physical schema,logical schema and sub schemas
Why DBMS are important in your information based society?
DBMS (Database Management Systems) are important in an information-based society because they provide a structured way to store, manage, and retrieve data efficiently. They help in organizing and maintaining large volumes of data, ensuring data consistency and integrity, and enabling quick access to pertinent information. DBMS also support data sharing and collaboration among users, leading to enhanced decision-making processes and overall business performance.
Why bcnf is stronger than 3nf?
A relation R is in 3NF if and only if every dependency A->B satisfied by R meets at least ONE of the following criteria: 1. A->B is trivial (i.e. B is a subset of A) 2. A is a superkey 3. B is a subset of a candidate key BCNF doesn't permit the third of these options. Therefore BCNF is said to be stronger than 3NF because 3NF permits some dependencies which BCNF does not.
