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Nataly [62]
3 years ago
10

A(n ____ enables a database administrator to define schema components.

Computers and Technology
1 answer:
zzz [600]3 years ago
8 0
Ig a(n) network cuz the database management language uses a schema and subschema data definition language; the schema data definition language enables database administrators to define schema components, and the subschema data definition language allows the application programs to define database components that will be used.

hope this helps u out. :)
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In the context of an expert system, a _____ works with the knowledge base management system to ensure that the knowledge base is
defon

Answer:

Knowledge Acquisition Facility.

Explanation:

The power and effectiveness of the Expert System  is equal to the quality of the knowledge it contains. The  knowledge has to deal with high complexity and apply the best judgement. collection of expert knowledge is very important and involves the collecting information about a field usually from  an expert. This information is stored in a computer program stored as a knowledge base.

Knowledge is always updating so it also very important to keep it up to date and it is done by Knowledge Acquisition Facility.

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3 years ago
Most people prefer to pay health insurance premiums rather than pay out of pocket for medical expenses because
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They may not have enough money for the bill at the time, and its easier to pay for insurance for unseen medical procedures.
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3 years ago
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Define the following terms: data model, database schema, database state, internal schema, conceptual schema, external schema, da
PolarNik [594]

Answer:

Following are the solution to the given terms:

Explanation:

Data Model: A set of concepts that are ideal for describing the layout, computational tools, relations, semantics, constraints on accuracy.

Database Scheme: It is also known as the overall design of the database.

Database State: It is the data in the database at a particular moment in time.

Internal Schema: The physical structure of the database is defined.

Conceptual Schema: It hides the details of physical storage.

External Schema: It describes the part of the database the user group sees. In other words, we can say that it is a view of the database.

Data Independence: The ability to modify the schema at a single level while modifying the schema at a higher level is often recognized.

DDL: It stands for the Data Definition Language, which is used by DBA and dev use for creating With particular scheme.  

DML: It refers to the Data Manipulation Language, which is used to manipulate, add, recover, insert, remove, and alter data.  

SDL: It stands for the storage definition language, in which the internal schema of the database is applied for storage description.  

VDL: The view definition language specifies the user to view and mapping their conceptual schema.

Query Language: It is just an independent, dynamic, high-level dialect used during manipulation.  

Host Language: It is also the machine language, that would be incorporated into the general programming language by low-level data handling commands.  

Data sublanguage: It uses for embedding in the last language.  

Database Utility: It is a program, which helps to handle the database with DBA's modules.  

Catalog: The entire structure and constraints of the database is defined.

client/server architecture: The design of the database server system that device usability: model user, model server (landless storage) software Government computer design in which many users (remote processors) demand a central server to receive service (host computer).  

Three-tier architecture: It is the application, data, user interface.

n-tier architecture: multiple levels. The nth level must only be able to handle the n+1 application and transmit it to the n-1 point.

3 0
3 years ago
Does anybody know the hack on how to be the among us Impostor every time? Please help!!!!
sweet [91]

Answer:

nope.....

Explanation:

bdjsbsijsebdjxh

6 0
2 years ago
A wide-angle lens corrected for barrel distortion is called a(n)<br> lens.
Sonja [21]

Answer:

Rectilinear lens

Explanation:

In photography, the distortions are caused in the formation of the image due to either the position of the camera or the optical design of the lenses i.e perspective and optical distortion.

The barrel distortion is a type of optical distortion caused due to the optical design of the lens. In barrel distortion, the straight lines of the light bend as a result of which the lines appear curved inwards in images.  

The field of view of wider than the image sensor in barrel distortions which can be corrected by the use of rectilinear lens which provides straight lines without bending them. This lens stretches the image towards the edge and removes distortion.

Thus, Rectilinear lens is the correct answer.

3 0
2 years ago
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