_____, also known as RESTRICT, yields values for all rows found in a table that satisfy a given condition.
Answer:
Date attributes contain calendar dates stored in a special format known as the _____ date format.
Date attributes contain calendar dates stored in a special format known as the _____ date format.
Answer:
A _____ contains at least all of the attribute names and characteristics for each table in the system.
A _____ contains at least all of the attribute names and characteristics for each table in the system.
Answer:
The CUSTOMER table's primary key is CUS_CODE. The CUSTOMER primary key column has no null entries, and all entries are unique. This is an example of _____ integrity.
The CUSTOMER table's primary key is CUS_CODE. The CUSTOMER primary key column has no null entries, and all entries are unique. This is an example of _____ integrity.
Answer:
In the relational model, _____ are important because they are used to ensure that each row in a table is uniquely identifiable.
In the relational model, _____ are important because they are used to ensure that each row in a table is uniquely identifiable.
Answer:
A _____ key can be described as a minimal superkey, a superkey without any unnecessary attributes.
A _____ key can be described as a minimal superkey, a superkey without any unnecessary attributes.
Answer:
A(n) _____ is an orderly arrangement used to logically access rows in a table.
A(n) _____ is an orderly arrangement used to logically access rows in a table.
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A(n) _____ is anything about which data are to be collected and stored.
A(n) _____ is anything about which data are to be collected and stored.
Answer:
Students and classes have a _____ relationship.
Students and classes have a _____ relationship.
Answer:
_____ are normally expressed in the form of rules.
_____ are normally expressed in the form of rules.
Answer:
The relational data model was developed in the _____.
The relational data model was developed in the _____.
Answer:
The object-oriented data model was developed in the _____.
The object-oriented data model was developed in the _____.
Answer:
_____ are important because they help to ensure data integrity.
_____ are important because they help to ensure data integrity.
Answer:
A(n) _____ enables a database administrator to describe schema components.
A(n) _____ enables a database administrator to describe schema components.
Answer:
One of the limitations of the _____ model is that there is a lack of standards.
One of the limitations of the _____ model is that there is a lack of standards.
Answer:
An internal _____ refers to a specific representation of an internal model, using the database constructs supported by the chosen database.
An internal _____ refers to a specific representation of an internal model, using the database constructs supported by the chosen database.
Answer:
The _____ data model uses the concept of inheritance.
The _____ data model uses the concept of inheritance.
Answer:
A(n) _____ is the equivalent of a field in a file system.
A(n) _____ is the equivalent of a field in a file system.
Answer:
Which of the following is true of NoSQL databases?
Which of the following is true of NoSQL databases?
Answer:
A noun in a business rule translates to a(n) _____ in the data model.
A noun in a business rule translates to a(n) _____ in the data model.
Answer:
Which of the following types of HDFS nodes stores all the metadata about a file system?
Which of the following types of HDFS nodes stores all the metadata about a file system?
Answer:
A(n) _____ represents a particular type of object in the real world.
A(n) _____ represents a particular type of object in the real world.
Answer:
The _____ model uses the term connectivity to label the relationship types.
The _____ model uses the term connectivity to label the relationship types.
Answer:
From a database point of view, the collection of data becomes meaningful only when it reflects properly defined _____.
From a database point of view, the collection of data becomes meaningful only when it reflects properly defined _____.
Answer:
A(n) _____ is a restriction placed on the data.
A(n) _____ is a restriction placed on the data.
Answer:
In the _____ model, the user perceives the database as a collection of records in 1:M relationships, where each record can have more than one parent.
In the _____ model, the user perceives the database as a collection of records in 1:M relationships, where each record can have more than one parent.
Answer:
A(n) _____'s main function is to help one understand the complexities of the real-world environment.
A(n) _____'s main function is to help one understand the complexities of the real-world environment.
Answer:
_____ data exist in the format in which they were collected.
_____ data exist in the format in which they were collected.
Answer:
A _____ is a character or group of characters that has a specific meaning.
A _____ is a character or group of characters that has a specific meaning.
Answer:
A(n) _____ database supports a relatively small number of users (usually fewer than 50) or a specific department within an organization.
A(n) _____ database supports a relatively small number of users (usually fewer than 50) or a specific department within an organization.
Answer:
A _____ is a logically connected set of one or more fields that describes a person, place, or thing.
A _____ is a logically connected set of one or more fields that describes a person, place, or thing.
Answer:
The database structure in a DBMS is stored as a _____.
The database structure in a DBMS is stored as a _____.
Answer:
A _____ is a collection of related records.
A _____ is a collection of related records.
Answer:
A desktop database is a _____ database.
A desktop database is a _____ database.
Answer:
_____ is the body of information and facts about a specific subject.
_____ is the body of information and facts about a specific subject.
Answer:
____ exists when different versions of the same data appear in different places.
____ exists when different versions of the same data appear in different places.
Answer:
_____ is the result of revealing the meaning of raw facts.
_____ is the result of revealing the meaning of raw facts.
Answer:
End-user data is _____.
End-user data is _____.
Answer:
____ refer to a type of database that stores most of its data in RAM rather than in hard disks.
____ refer to a type of database that stores most of its data in RAM rather than in hard disks.
Answer:
_____ are the result of formatting disorganized data in order to facilitate storage, use and generation of information.
_____ are the result of formatting disorganized data in order to facilitate storage, use and generation of information.
Answer:
Accurate, relevant, and timely information is the key to ____.
Accurate, relevant, and timely information is the key to ____.
Answer:
Data is said to be verifiable if:
Data is said to be verifiable if:
Answer:
The term ____ refers to an organization of components that define and regulate the collection, storage, management and use of data within a database environment.
The term ____ refers to an organization of components that define and regulate the collection, storage, management and use of data within a database environment.
Answer:
_____ provide a description of the data characteristics and the set of relationships that link the data found within the database.
_____ provide a description of the data characteristics and the set of relationships that link the data found within the database.
Answer:
_____ is defined as the condition in which all of the data in the database are consistent with the real-world events and conditions.
_____ is defined as the condition in which all of the data in the database are consistent with the real-world events and conditions.
Answer:
Which of the following is true of spreadsheet applications?
Which of the following is true of spreadsheet applications?
Answer:
Data warehouse contains historical data obtained from the _____.
Data warehouse contains historical data obtained from the _____.
Answer:
The frequency most commonly used for transcranial Doppler is:
The frequency most commonly used for transcranial Doppler is:
Answer:
A unilateral decrease or absence of diastolic flow in the common carotid artery is indicative of:
A unilateral decrease or absence of diastolic flow in the common carotid artery is indicative of:
Answer:
Loss of the spectral window with pulsed Doppler ultrasound is present with:
Loss of the spectral window with pulsed Doppler ultrasound is present with:
Answer:
All of the following statements below apply to continuous-wave Doppler EXCEPT:
All of the following statements below apply to continuous-wave Doppler EXCEPT:
Answer:
Differentiation between primary ischemic and primary hemorrhagic stroke is most readily obtained by which diagnostic test?
Differentiation between primary ischemic and primary hemorrhagic stroke is most readily obtained by which diagnostic test?
Answer:
The surgical removal of the atherosclerotic plaque from an artery is termed:
The surgical removal of the atherosclerotic plaque from an artery is termed:
Answer:
Percentage diameter and area diameter reduction measurements are most accurate when obtained in which imaging plane?
Percentage diameter and area diameter reduction measurements are most accurate when obtained in which imaging plane?
Answer:
A percentage diameter reduction of 50% in a symmetric narrowing of the carotid artery most closely corresponds to what percentage area reduction?
A percentage diameter reduction of 50% in a symmetric narrowing of the carotid artery most closely corresponds to what percentage area reduction?
Answer:
Which measurement is most commonly used in angiographic reports of carotid stenosis?
Which measurement is most commonly used in angiographic reports of carotid stenosis?
Answer:
Why are blood pressures obtained bilaterally when evaluating a patient for cerebrovascular disease?
Why are blood pressures obtained bilaterally when evaluating a patient for cerebrovascular disease?
Answer:
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