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Verdich [7]
3 years ago
7

Discuss why databases are important in accounting information systems. Describe primary and foreign keys, normalization and data

base cardinalities. Why are each important to the database design
Computers and Technology
1 answer:
trapecia [35]3 years ago
7 0

Answer:

ensure integrity. primary key is unique key..foreign key is to connect 2 table.normalization to ensure you keep track on what you should do to create db..

You might be interested in
The ____ algorithm tries to extend a partial solution toward completion
Fittoniya [83]

Answer: Backtracking

Explanation:

Backtracking algorithm approaches a solution in a recursive fashion whereby it tries to build answers and modify them in time intervals as we progress through the solution. One such backtracking algorithm is the N Queen problem whereby we place N Queen in a chessboard of size NxN such that no two queens attack each other. So we place a queen and backtrack if there is a possibility that the queen is under attack from other queen. This process continues with time and thereby it tends to extend a partial solution towards the completion.

8 0
4 years ago
What is the available vector for each resource and the need matrix for each thread. Note that an available vector depicts the qu
blsea [12.9K]

Answer:

If request granted then T₁ and T₂ are in deadlock.

Explanation:

See attached image

4 0
3 years ago
Explain how chord works. To increasing the fault tolerance in chord, each node maintains a successor list (finger table) instead
andrew11 [14]

Answer:

Chord is a set of rules for a peer-to-peer distributed hash table it collects key-value sets by allotting keys to several computers (known as "nodes"); a node will collect the values for all the keys for which that is reliable. Chord defines how keys are allocated to the nodes, and how a node can determine the value for a distributed key by first locating the node liable for such key.

Explanation:

A chord is a peer-to-peer lookup service. It Resolves the difficulty of establishing a data item in a combination of shared nodes, considering various node arrivals and removals The most crucial operation in most peer-to-peer method is the efficient position of data objects.

It is able of supporting only one operation i.e. given a key, it maps the key on a link.

Algorithm:

Algorithm shows working of the chord:

// x is a node used to find successor of id

x.find_successor(id)

if (id (x; successor])

return successor;

else

// query is being delivered around the circle

entrance successor.find_successor(id);

6 0
3 years ago
What is a reason for zipping a file?A. to encrypt themB. to return them to their original sizeC. so they display properly on a W
Morgarella [4.7K]

A reason for zipping a file is:

  • D. to combine multiple files into one.

<h3>What is Zipping a File for?</h3>

When a person converts any file to a Zip, it may have one of the following reasons:

  • Reduce the size of the files.
  • Merge files into one.
  • Facilitate the sending of files by mail or others.

Therefore, among the given options, it is possible that a person has as objective to combine multiple files into one, in this way you will be able to find in a single file the information concerning a specific topic and send or transport it more easily.

If you want to learn more about Files, you can visit the following link: brainly.com/question/4461652

5 0
2 years ago
Say you're designing your own operating system, and you want to implement your own paging system. Give one advantage of having s
zheka24 [161]

Answer and Explanation:

Advantages of having large page sizes: Smaller page table, less page faults, less overhead in reading/writing of pages.

Advantages of having small page sizes: reduces internal fragmentation, better with locality of reference.

7 0
4 years ago
Read 2 more answers
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