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    The process of breaking up or dividing a single relation into two or more sub relations is called the decomposition of a relation. Therefore anomalies are avoid

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    Anomalies are avoided by splitting the offending relation into multiple relations, is also known as _____.

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    Accupressure Decomposition Precomposition

    Both decomposition & precomposition

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    Option 2 : Decomposition

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    The process of breaking up or dividing a single relation into two or more sub relations is called the decomposition of a relation. Therefore anomalies are avoided by splitting the offending relation into multiple relations, is also known as Decomposition

    Important Point:

    Decomposition is used to eliminate some of the problems of bad design like anomalies, inconsistencies, and redundancy

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    More Normal Form Questions

    Q1. Which of the following normal form(s) is/are based on the functional dependencies among the attributes of a relation? A. 1NF B. 2NF C. 3NF D. 4 NFQ2. Boyce Codd Normal Form is slightly stronger version of which of the form of database normalisation?Q3. Which of the following statements is/are FALSE? (i) By definition a relation schema is in first normal form. (ii) A relation schema which is in third normal form is definitely in BCNF.Q4. Consider the relation schema: Singer(singerName, songName). What is the highest normal form satisfied by the "Singer" relation schema?Q5. Consider the following Table The table is in which normal form?Q6. Every time the attribute A appears, it is matched with the same value of attribute B but not the same value of attribute C. Which of the following is true ?Q7. Consider the schema R (A, B, C, D) and the functional dependencies  A → B and C → D. If the decomposition is made as R1 (A, B) and R2 (C, D), then which of the following is TRUE ?Q8. Consider a schema R(A, B, C, D) and following functional dependencies. A → B B → C C → D D → B Then decomposition of R into R1(A, B), R2(B, C) and R3(B, D) is _______Q9. Consider a relation R (A, B, C, D, E, F, G, H), where each attribute is atomic, and following functional dependencies exist. CH → G A → BC B → CFH E → A F → EG The relation R is ______.

    More Integrity Constraints and Normal Form Questions

    Q1. Which of the following normal form(s) is/are based on the functional dependencies among the attributes of a relation? A. 1NF B. 2NF C. 3NF D. 4 NFQ2. Boyce Codd Normal Form is slightly stronger version of which of the form of database normalisation?Q3. We have a database table with relational schema R(XYZPQ): X Y Z P Q A1 B1 C1 D1 E1 A2 B2 C1 D2 E1 A3 B2 C2 D1 E2 A4 B3 C1 D3 E3 A5 B2 C2 D4 E2   Which of the following statements is true?Q4. Which of the following statements is/are FALSE? (i) By definition a relation schema is in first normal form. (ii) A relation schema which is in third normal form is definitely in BCNF.Q5. Let R is a relation schema and X, Y ⊆ R. "If Y ⊆ X, then X → Y" represents which of the following inference rules?Q6. Consider the relation schema: Singer(singerName, songName). What is the highest normal form satisfied by the "Singer" relation schema?Q7. Let R(A, B, C, D) be a relation schema and F = {A → BC, AB → D, B → C} be the set of functional dependencies defined over R. Which of the following represents the closure of the attribute set {B}?Q8. Which of the following is TRUE?Q9. Relation R has eight attributes ABCDEFGH. Fields of R contain only atomic values. F = {CH → G, A → BC, B → CFH, E → A, F → EG} is a set of functional dependencies (FDs) so that F+ is exactly the set of FDs that hold for R. The relation R isQ10. Relation R has eight attributes ABCDEFGH. Fields of R contain only atomic values. F = {CH → G, A → BC, B → CFH, E → A, F → EG} is a set of functional dependencies (FDs) so that F+ is exactly the set of FDs that hold for R. How many candidate keys does the relation R have?

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    Anomalies are avoided by splitting the offending relation into multiple relations, is also known as

    Anomalies are avoided by splitting the offending relation into multiple relations, is also ... (d) Both Decomposition and Precomposition

    Anomalies are avoided by splitting the offending relation into multiple relations, is also known as

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    Normalization

    This set of Oracle Database Multiple Choice Questions & Answers (MCQs) focuses on “Normalization”. 1. A table is in BCNF if it is in 3NF and if every determinant is a ___________ key. a) Dependent b) Normal c) Candidate d) Both Normal and Candidate 2. The ___________ normalization introduced by Chris Date, Hugh Darwen, and ... Read more

    Oracle Database Questions and Answers – Normalization

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    This set of Oracle Database Multiple Choice Questions & Answers (MCQs) focuses on “Normalization”.

    1. A table is in BCNF if it is in 3NF and if every determinant is a ___________ key.

    a) Dependent b) Normal c) Candidate

    d) Both Normal and Candidate

    View Answer

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    View Answer

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    View Answer

    7. Anomalies are avoided by splitting the offending relation into multiple relations, is also known as

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    9. When the values in one or more attributes being used as a foreign key must exist in another set of one or more attributes in another table, we have created a(n):

    a) Transitive Dependency

    b) Insertion Anomaly

    c) Referential Integrity Constraint

    d) Normal Form View Answer advertisement

    10. Which of the following is not a restriction for a table to be a relation?

    a) The cells of the table must contain a single value

    b) All of the entries in any column must be of the same kind

    c) The columns must be ordered

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