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You Are On Multi Choice Question Bank SET 935

46751. If attributes A and B determine attribute C, then it is also true that:





46752. A tuple is a(n):





46753. If attribute A determines both attributes B and C, then it is also true that:





46754. One solution to the multivalued dependency constraint problem is to:





46755. In a relation, the order of the rows matters.



46756. In a relation, the rows are sometimes called "records."



46757. G.I pipe has a coating of --------------





46758. Any table that meets the definition of a relation is said to be in first normal form.



46759. Given the functional dependency R → (S,T) , then it is also true that R → S.



46760. A candidate key is a determinant that determines all the other columns is a relation.



46761. The only reason for the existence of relations is to store instances of functional dependencies.



46762. A relation is in 5NF when multivalued dependencies are isolated in their own relation.



46763. The functional dependency R → S means that the value of S can be determined when we are given a value of R.



46764. In a relation, the columns are sometimes called "attributes."



46765. In a relation, the order of the columns does not matter.



46766. A functional dependency is a relationship between or among attributes.



46767. A key is a group of one or more attributes that uniquely identifies a row.



46768. Keys made up of two or more attributes are called composite keys.



46769. Given the functional dependency R → S , R is called the determinant.



46770. Relations are categorized into normal forms according to the referential integrity constraints that they have.



46771. A relation is in Boyce-Codd Normal Form (BCNF) if every determinant is a composite key.



46772. A functional dependency is always an equation.



46773. A relation has cells that hold multi-value entries.



46774. In a relation, the rows are sometimes called "fields."



46775. A primary key is a composite key that was selected to be the main identifier for the relation.



46776. Every time attribute A appears, it is matched with the same value of attribute B, but not the same value of attribute C. Therefore, it is true that:





46777. The different classes of relations created by the technique for preventing modification anomalies are called:





46778. A relation is in this form if it is in BCNF and has no multivalued dependencies:





46779. Row is synonymous with the term:





46780. The primary key is selected from the:





46781. The standard length of a rail for broad gauge is-------metre.





46782. When brick is cut into halfs longitudinally,one part is called---------





46783. The upper horizontal member of the door frame is called





46784. In Surveying the measurements are taken in--------plane.





46785. The curvature of earth is considered in--------surveying.





46786. Which of the following situation requires the use of ID-dependent entities?





46787. A foreign key is:





46788. Which of the following columns is(are) are required in a table?





46789. In a 1:1 relationship, the foreign key is placed in:





46790. Which of the following column properties would be used to specify that cells in a column must be immediately filled with a monetary value of $10,000?





46791. The identifier of an entity will become the ________ of the new table.





46792. Which of the following data constraints would be used to specify that the value of a cell in one column must be less than the value of a cell in another column in the same row of the same table?





46793. A unique, DBMS-supplied identifier used as the primary key of a relation is called a(n):





46794. Which is not true about surrogate keys?





46795. For every relationship, how many possible types of actions are there when enforcing minimum cardinalities?





46796. Which constraint requires that the binary relationship indicate all combinations that must appear in the ternary relationship?





46797. Each entity is represented as a(n):





46798. For every relationship, how many possible sets of minimum cardinalities are there?





46799. If a relationship has a cascade updates constraint, then if ________ in the parent table is changed, then the same change will automatically be made to any corresponding foreign key value.





46800. Which of the following column properties would be used to specify that cells in a column must contain a monetary value that is less than another monetary value in the same row?





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