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cricket20 [7]
3 years ago
11

Explain the levels of data model​

Computers and Technology
1 answer:
gregori [183]3 years ago
4 0

Answer:

Data modeling occurs at three levels—physical, logical, and conceptual.

  • A physical model is a schema or framework for how data is physically stored in a database.

  • A conceptual model identifies the high-level, user view of data.

  • A logical data model sits between the physical and conceptual levels and allows for the logical representation of data to be separate from its physical storage.

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you just finished creating an expense report table, but your boss tells you to create an extra column representing non-productio
Margaret [11]
If you are using Microsoft Excel, then that would be easy.
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3 years ago
Which is the purpose of adding B-Roll footage to a sequence?
pav-90 [236]

Answer:

To add richness in content – B-roll footage is used to increase the depth of the main footage and improve storytelling.

Explanation:

Hope this helps

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3 years ago
OSI layer for HDLC??​
tresset_1 [31]

Answer:

HDLC is one of the most commonly used internet protocols (IP) in what is Layer 2 of the industry communication reference model called Open Systems Interconnection (OSI).

Explanation:

3 0
3 years ago
What is the index of 7 in this list?
Ganezh [65]

Answer:

Assuming this is 0 based array indexing, it would look like this...

[ 5, 6, 10, 7, 3, 2.5 ]

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6 0
3 years ago
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