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saul85 [17]
3 years ago
8

In a relational database model, a(n) _____ operation pares down a table by eliminating columns according to certain criteria. in

sert join find project
Computers and Technology
1 answer:
nikklg [1K]3 years ago
8 0

I guess the correct answer is Project

If thе usеr is intеrеstеd in sеlеcting thе valuеs οf a fеw attributеs, rathеr than sеlеctiοn all attributеs οf thе Tablе (Rеlatiοn), thеn οnе shοuld gο fοr Prοjеct Οpеratiοn.

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What is the result of the following code?<br><br> x=7//2+10%2**4<br><br> print(x)
spin [16.1K]

Answer:

3

Explanation:

We can split the expression into two sections

First Section:

7 // 2 = 3. Using the floor division we only utilize the integer part.

Second Section:

10 % 2**4 = 0**4 = 0

Bringing back the full version expression we have

3 + 0 = 3

7 0
2 years ago
Identifica una necesidad que implique la reducción de los efectos perjudiciales relacionados al uso de los recursos energéticos.
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Answer:

Baje las persianas o cierre las cortinas en los días calurosos, para mantener la casa fresca y reducir el uso de ventiladores eléctricos o aire acondicionado. Deje que la ropa se seque naturalmente. Mantenga las tapas en las ollas cuando cocine para ahorrar energía. Use baterias recargables.

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2 years ago
Which statements are true about a database?
anzhelika [568]

Answer:

you cannot leave a field empty

you can enter data based on the defined data type

6 0
2 years ago
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A computer system designed to run games is called a
Maru [420]

A computer system designed to run games is called a game console.

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4 years ago
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Explain the term criteria when building a query.
Olegator [25]

Answer:

A criteria in query is used to compare to query field values so as to determine whether to include the record that contains each value.

Explanation:

A criteria in query is used to compare to query field values so as to determine whether to include the record that contains each value. Query criteria is used to limit the result from a query retrieving only specific items.

Only when an item matches all the criteria can it be shown as a query results. Query criterias can be simple making use of basic operators and constants while some may be complex, and use functions, special operators,.

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3 years ago
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