35 in a(n) _____ diagram, the arrows above the attributes indicate all desirable dependencies.

In a(n) _____ diagram, the arrows above the attributes indicate all desirable dependencies. a. dependency; At the implementation level, the supertype and its subtype(s) depicted in a specialization hierarchy maintain a(n) _____ relationship. a. 1: A table is in 1NF when all the key attributes are defined (no repeating groups in the table) and when all remaining attributes are dependent on the primary key. However, a table in 1NF still may contain partial dependencies, i.e., dependencies based on only part of the primary key and/or transitive dependencies that are based on a non-key ...

Match the following terms with their descriptions:I.NormalizationII.First normal formIII.Second normal formIV.Third normal formV.Normal formsA.No transitive dependencies existB.Process of efficiently organizing dataC.Table contains no repeating groups or columnsD.The rules to optimize and fix potential repetition issues in a databaseE.All non-key fields are functionally dependent on the entire ...

In a(n) _____ diagram, the arrows above the attributes indicate all desirable dependencies.

The arrows above the attributes indicate all. The arrows above the attributes indicate all desirable dependencies, i.e., dependencies that are based on the full primary key (PROJ_NUM + EMP_NUM). The arrows below indicate the undesirable dependencies - 'transitive' and 'partial'. 6 2NF Definition A table is in 2NF if: It is in 1NF and ... Question 10 ( 5 points ) In a ( n ) _____ diagram , the arrows above the attributes indicate all desirable dependencies . Question 10 options : Chen dependency functionality ER Question 11 ( 5 points ) A table that is in 2 NF and contains no transitive dependencies is said to be in _ ____. Dependencies can be identified with the help of the dependency diagram. _F___ 12. Dependencies that are based on only a part of a composite primary key are called transitive dependencies. ... In a(n) ____ diagram, the arrows above the attributes indicate all desirable dependencies. a. Chen. c. functionality. b. dependency. d. ER.

In a(n) _____ diagram, the arrows above the attributes indicate all desirable dependencies.. Chapter 5, Chapter 6/ Concepts of DataBase Management/ 8th Edition/ Phil Pratt & Mary Last 🎓questionNormalization process answerIdentifying potential problems, called update anomalies, in the design of a relational database Methods for correcting is a candidate key of R— this implies that X Y for any subset of attributes Y of R. If X is a candidate key of R, then X R. If X Y in R, this does not imply that Y X in R. A functional dependency is a property of the semantics or meaning of the attributes. Whenever the semantics of two sets of attributes in R indicate that a functional dependency should hold, we specify the ____ 38. In a(n) ____ diagram, the arrows above the attributes indicate all desirable dependencies. a. c. Chen functionality b. dependency d. ER ____ 39. A table that is in 1NF and includes no partial dependencies only is said to be in ____. a. c. BCNF 3NF b 2. The arrows above the attributes indicate all desirable dependencies, that is, dependencies that are based on the primary key. In this case, note that the entity'sattributes are dependent on the combination of PROJ_NUM and EMP_NUM. 3. The arrows below the dependency diagram indicate less desirable dependencies. Two types of such ...

1 pts In a(n) _____ diagram, the arrows above the attributes indicate all desirable dependencies. Group of answer choices Chen dependency functionality ER Flag this Question Question 6 1 pts Dependencies based on only a part of a composite primary key are known as _____ dependencies. Chapter 11 Functional Dependencies Adrienne Watt. A functional dependency (FD) is a relationship between two attributes, typically between the PK and other non-key attributes within a table.For any relation R, attribute Y is functionally dependent on attribute X (usually the PK), if for every valid instance of X, that value of X uniquely determines the value of Y. In a(n) _____ diagram, the arrows above the attributes indicate all desirable dependencies. In a dependency diagram, the arrows above the attributes indicate all desirable dependencies. s The ER diagram represents the conceptual database as viewed by the end user. ... In a(n) ____ diagram, the arrows above the attributes indicate all desirable dependencies. anomalies. ... Dependencies that are based on only a part of a composite primary key are called transitive dependencies.

In a(n) _____ diagram, the arrows above the attributes indicate all desirable dependencies. partial dependency A dependency based on only a part of a composite primary key is called a(n) _____. Functional dependencies are used to describe further a relation schema R by specifying constraints on its attributes that must hold at all times. Certain FDs can be specified without referring to a specific relation, but as a property of those attributes given their commonly understood meaning. In a(n)diagram, the arrows above the attributes indicate all desirable dependencies. a. Chen b. dependency c· functionality d. ER 6. If a table has multiple candidate keys and one of those candidate keys is a composite key, the table can have based on this composite candidate key, even when the primary key chosen is a single attribute. a. In a(n) ___ diagram, the arrows above the attributes indicate all desirable dependencies. dependency A table that has all key attributes defined, has no repeating groups, and all its attributes are dependent on the primary key, is said to be in ___.

12 VMS/VSAM is an example of the _____. • hierarchical model • file system data model • XML data model • relational data model 13 A table where all attributes are dependent on the primary ...

The arrows above entities indicate all desirable dependencies in this table ie dependencies that are based on pk. In an diagram the arrows above the attributes indicate all desirable dependencies. This preview has intentionally blurred sections. A table that is in 1nf and includes no partial dependencies only is said to be in.

In a(n) ____ diagram, the arrows above the attributes indicate all desirable dependencies: Chen, Functionality, Dependency, or ER. Dependency. A table that is in 1NF, includes no partial dependencies, but may include transitive dependencies is said to be in ____: BCNF, 2NF, 4NF, or 3NF. 2NF.

Step 3 -Dependency Diagram (1NF) • The connections above the entity show attributes dependent on the currently chosen Primary Key, the combination of PROJ_NUM and EMP_NUM. • The arrows below the dependency diagram indicate less desirable partial and transitive dependencies 15 CS275 Fall 2010 Resulting First Normal Form • First normal form ...

Works_In(M-N) to a relation, attributes of the relation must include: – Keys for each participating entity set (as foreign keys). – This set of attributes forms a superkeyfor the relation. – All descriptive attributes. CREATE TABLE Works_In(ssn CHAR(1), did INTEGER, since DATE, PRIMARY KEY (ssn, did), FOREIGN KEY (ssn) REFERENCES Employees,

In a(n) _____ diagram the arrows above the attributes indicate all the desirable dependencies a) Chen b) dependency c) functionality d) ER. answer. b) dependency. question

In a(n) _____ diagram, the arrows above the attributes indicate all desirable dependencies. Crow Foot notation ERDs When designing a new database structure based on the business requirements of the end users, the database designer will construct a data model using a technique such as what?

In a(n) _____ diagram, the arrows above the attributes indicate all desirable dependencies. dependency From a system functionality point of view, _____ attribute values can be calculated when they are needed to write reports or invoices.

In a(n) ___ diagram, the arrows above the attributes indicate all desirable dependencies. dependency A ________ group derives its name from the fact that a group of multiple entries of the same type can exist for any single key attribute occurrence.

21. _____ are important because they help to ensure data integrity. a. Attributes b. Entities c. Relationships d. Constraints 22. A (n) _____ exists when there are functional dependencies such that Y is functionally dependent on X, Z is functionally dependent on Y, and X is the primary key.

In a(n) _____ diagram, the arrows above the attributes indicate all desirable dependencies. a. Chen b. dependency c. functionality d. ER. b. dependency. 33. Dependencies based on only a part of a composite primary key are known as _____ dependencies. a. primary b. partial

Question 7 1 / 1 pts A ____ exists when there are functional dependencies such that Y is functionally dependent on X and Z is functionally dependent on Y, and X is the primary key. partial dependency repeating group atomic attribute transitive dependency. Question 8 1 / 1 pts In a (n) ____ diagram, the arrows above the attributes indicate all ...

Dependencies can be identified with the help of the dependency diagram. _F___ 12. Dependencies that are based on only a part of a composite primary key are called transitive dependencies. ... In a(n) ____ diagram, the arrows above the attributes indicate all desirable dependencies. a. Chen. c. functionality. b. dependency. d. ER.

Question 10 ( 5 points ) In a ( n ) _____ diagram , the arrows above the attributes indicate all desirable dependencies . Question 10 options : Chen dependency functionality ER Question 11 ( 5 points ) A table that is in 2 NF and contains no transitive dependencies is said to be in _ ____.

The arrows above the attributes indicate all. The arrows above the attributes indicate all desirable dependencies, i.e., dependencies that are based on the full primary key (PROJ_NUM + EMP_NUM). The arrows below indicate the undesirable dependencies - 'transitive' and 'partial'. 6 2NF Definition A table is in 2NF if: It is in 1NF and ...

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