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worty [1.4K]
2 years ago
15

Which of the following is a type of logical function?

Computers and Technology
1 answer:
Sonbull [250]2 years ago
8 0

Answer:

Hope I can help:

D.) IF

Explanation:

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The Warn-on-Forecast has been developed by the National Weather Service to help predict hazardous weather earlier. Which of the
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The main reason to set a field size in access is to:
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A personal music database stores details of a personal music library, and can be used to manage your MP3, CD, or vinyl collectio
Rudiy27

Answer:

Check the explanation

Explanation:

Step 1: identify the entitles

From the statement given, the given entitles are artists, albums, tracks and played.

Step 2: identify the relationships

  1. One artist can make many albums
  2. One album can contain many tracks
  3. One track can be played many times.

Conversely, each play is associated with one track, a track is on one album, and an album is by one artist.

Step 3: identify the key attributes

The only strong entity in the database would be the “artist”, which has an attribute of artist ID so as to uniquely identifies it

Each album entity is uniquely identified by its album combined with the artist ID of the corresponding artist entity.

A track entity is similarly uniquely identified by its track ID combined with the related album ID and artist ID attributes.

The played entity is uniquely identified by a combination of its played time, and the related track ID attributes.

Step 4: identify other relevant attributes:

The attributes are straight forward; artist, albums, and track have names as well as identifiers to uniquely identify each entity. The track entity has a time attribute to solve the duration and the played entity has a timestamp to store when the track was played.

Step 5: Draw a complete ER diagram

The diagram explaining this question can be seen in the attached image below:

7 0
3 years ago
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