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MAXImum [283]
2 years ago
3

Database __________ , which is the logical design of the database, and the database _______,which is a snapshot of the data in t

he database at a given instant in time.
A. Relation, Domain
B. Relation, Schema
C. Instance, Schema
D. Schema, Instance
Computers and Technology
1 answer:
Vikki [24]2 years ago
3 0

Answer:

D. Schema, Instance.

Explanation:

Database schema, which is the logical design of the database, and the database instance, which is a snapshot of the data in the database at a given instant in time.

In database management, the term "schema" is used to denote a representation of data while the term "instance" is used to denote an instance of time.

A database schema is a structure which is typically used to represent the logical design of the database and as such represents how data are stored or organized and the relationships existing in a database management system. There are two (2) main categories of a database schema; physical database schema and logical database schema.

A database instance is a snapshot of the data in the database at a given instant in time and as such represents an operational database by following the conditions, validation and constraints set for a database management system.

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Explanation:

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daniel wants to buy a computer to use for playing games after work. he loves racing games and wants to make sure his device has
kirza4 [7]

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1 year ago
Which item follows html instructions to assemble web pages
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2 years ago
ArgumentException is an existing class that derives from Exception; you use it when one or more of a method’s arguments do not f
dybincka [34]

Answer:

The C# code is given below

Explanation:

using System;

public class SwimmingWaterTemperatur

{

public static void Main()

{

while(true){

Console.Write("\nPlease enter the water temperature : ");

int x = Int32.Parse (Console.ReadLine());

try{

if(CheckComfort(x)){

Console.Write(x+" degrees is comfortable for swimming.");

}else{

Console.Write(x+" degrees is not comfortable for swimming.");

}

}catch(Exception ex){

Console.WriteLine(ex);

}

}

}

public static Boolean CheckComfort(int temp){

if(temp>=70 && temp<=85){

return true;

}else if(temp>=32 && temp<=212){

return false;

}else{

throw new ArgumentException("Value does not fall within the exptected range.");

}

}

}

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2 years ago
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