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3 years ago

Discuss the capabilities that should be provided by a DBMS.

Engineering

1 answer:

Brums [2.3K]3 years ago

8 0

Answer:

They include;

1. A database backup and recovery system.

2. A good security architecture

3. Concurrent access to the system

4. Data dictionary

5. Data definition

6. Data Manipulation Language

Explanation:

A Database Management system shortened as DBMS is used in the organization, storage, and retrieval of data and files in a database. It makes working with files easy and curbs the duplications that can arise from working with files. The capabilities that should be provided by the DBMS include;

1. A database backup and recovery system: There should be a provision for files to be backed up so as to ease their recovery when lost.

2. A good security architecture: This helps to ensure that only authorized users can get access to files. Integrity is also assured this way.

3. Concurrent access to the system: Multiple users should be able to access files at the same time.

4. Data Dictionary: This is a file that helps in the storage of information on the data in the database.

5. Data Definition: This would ensure that the structure of data is properly spelled out.

6. Data Manipulation Language: such as Sequence Query Language is a programmed language that is used in working on data and files.

Examples of DBMS software include:

MySQL, Microsoft Access, Oracle, PostgreSQL, dBase, FoxPro, etc

Read more here:

brainly.com/question/15220801

5 0

2 years ago

Millions of years ago, the Sierra Nevada region began to be uplifted along a crack in Earth's crust. The region on the other sid

Evgen [1.6K]

Answer: The correct answer is : Fault block mountain with rough edges and steep cliffs

Explanation: Snowy saws are an example of a mountain chain blocked by faults. The snowy mountains were formed because the tectonic movement forced some segments of the earth's crust up into irregular pieces and others down.

8 0

3 years ago

Showing or hiding records in a database is called “filtering.”<br> True<br> False

agasfer [191]

Answer:

TRUE

Explanation:

4 0

2 years ago

Read 2 more answers

How does the two-stroke Otto cycle differ from the four-stroke Otto cycle?

Digiron [165]

Answer:

Two stroke cycle Four stroke cycle

1.Have on power stroke in one revolution. 1.have one power

stroke in two revolution

2.Complete the cycle in 2 stroke 2.Complete the cycle in 4 stroke

3.It have ports 3.It have vales

4.Greater requirement of cooling 4.Lesser requirement of cooling

5.Less thermal efficiency 5.High thermal efficiency

6.Less volumetric efficiency 6.High volumetric efficiency

7.Size of flywheel is less. 7.Size of flywheel is more.

3 0

3 years ago

Ti-6Al-4V has a fracture toughness of 74.6 MPa-m0.5. How much stress (in MPa) would it take to fail a plate loaded in tension th

Nikitich [7]

Answer:

critical stress = 595 MPa

Explanation:

given data

fracture toughness = 74.6 MPa- $\sqrt{m}$

crack length = 10 mm

f = 1

solution

we know crack length = 10 mm

and crack length = 2a as given in figure attach

so 2a = 10

a = 5 mm

and now we get here with the help of plane strain condition , critical stress is express as

critical stress = $\frac{k}{f\sqrt{\pi a}}$ ......................1

put here value and we get

critical stress = $\frac{74.6}{1\sqrt{\pi 5\times 10^{-3}}}$

critical stress = 595 MPa

so here stress is change by plane strain condition because when plate become thinner than condition change by plane strain to plain stress.

plain stress condition occur in thin body where stress through thickness not vary by the thinner section.

6 0

3 years ago