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3 years ago

What is the difference between persistent and transient objects? How is persistence handled in typical OO database systems?

Computers and Technology

1 answer:

vaieri [72.5K]3 years ago

5 0

Answer:

Explanation:

Transient Objects: Transient Objects are that has been just instantiated. Transient objects don't have representation and identifier value in the databases. The transient objects will be destroyed by the garbage collector if they don't have any use and reference in the database.

Persistent Objects: Persistent Objects have representation in databases and identifiers. These objects are saved in the databases. Persistent objects are synchronized with that of the database.

The persistence in Object Oriented Databases is handled by creating Persistent Objects and Transient Objects. As stated above the persistent objects have representations in the databases.

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Watson Studio is the IBM premier integrated development environment for data science and artificial intelligence practitioners.

fomenos

Answer:

c. Using the Data Refinery tool

Explanation:

Data wrangling and tidying in Data Science is the process whereby data to be analysed is obtained, cleaned and arranged before it is analysed in the environment.

Since Watson Studio happens to be an IBM premier integrated development environment for data science and artificial intelligence practitioners, there is need for them to have data softwares to make data scientists practitioners' works easier.

In this scenario, the best tools to aid in tidying data in the Watson studio would be the use of Data Refinery Tool.

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3 years ago

A) What is the maximum value that can be represented as an unsigned n-bit binary integer?

My name is Ann [436]

Answer:

The maximum value that are represented as unsigned n -bit binary integer is $2^n-1$ . The unsigned binary integer refers to the fixed point of the system that does not contain any fractional digits.

The unsigned binary integer contain module system with the power 2. The number of student table in the class is the best example of the unsigned integer. The numbers can be represented by using the binary notation and bits in the computer system.

5 0

3 years ago

Which symbol would be used in a flowchart to represent a connection to another part of the flowchart on the same page

AlekseyPX

Answer:

The answer is "Connectors".

Explanation:

Please find the Connectors image in the attached file.

In this question, the connectors symbol is usually small throughout the flowcharts. It is used as a connection to display and changes throughout the flux. It was usually marked by major letters that indicate jump points. This diagram visually shows the sequence of events in a system and who is accountable.

7 0

3 years ago

his exercise creates a program to convert the temperature values form Fahrenheit to Celsius for a list of 10 temperature values

MissTica

Answer:

def fahrenheit_to_celsius(temperature):

c = (temperature - 32) / 1.8

return c

temperature_list = [-10, -5, 0, 10, 20, 32, 40, 50, 60, 75.2]

i = 0

while i < 10:

print(str(temperature_list[i]) + " degrees Fahrenheit = " + str(fahrenheit_to_celsius(temperature_list[i])) + " degrees Celsius")

i += 1

Explanation:

*The code is in Python.

Create a function named fahrenheit_to_celsius that takes one parameter, temperature

Convert the temperature to celsius using the formula

Return the result of the conversion

Create a list holding ten temperatures

Create a while loop that iterates 10 times. Inside the loop, call the function to convert the each temperature in the list and print the result

5 0

3 years ago

Asking questions when something is unclear is part of

Ksenya-84 [330]

Personally responsibility

Hope this helps

6 0

3 years ago