An entity is said to be existence -dependent if it can exist in the database only when it is associated with another related entity occurrence.
<h3>What is a database ?</h3>
A database in computing is a structured collection of data that is electronically accessible and stored. Large databases are housed on computer clusters or cloud storage, whilst small databases can be stored on a file system. Data modeling, effective data representation and storage, query languages, security and privacy of sensitive data, and distributed computing challenges, such as providing concurrent access and fault tolerance, are all part of the design of databases.
In order to collect and process data, a database management system (DBMS) communicates with applications, end users, and the database itself. The primary tools offered to manage the database are also included in the DBMS software.
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brainly.com/question/518894
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Answer:
import pandas as pd
# loads the text file as a pandas dataframe
student_file = pd.read_fwf("std_info.txt")
# opens a new text file if the student_avg does not exist
# the file closes automatically at the end of the with statement
with open('student_avg.txt', 'w+') as file:
for row in student_file.iterrows():
file.write(row)
ee = student_file[student_file['major'=='EE']]
cpe = student_file[student_file['major'=='CPE']]
file.write(f'EE average = {ee['EE'].mean()}')
file.write(f'CPE average = {ee['CPE'].mean()}')
file.write(f'Total average = {student_file['EE'].mean()}')
Explanation:
The python program gets the text file as a fixed-width file and loads the file as a pandas dataframe. The dataframe is used to get the total average GPA the student GPA and the average GPA of students in various departments. The results are saved in a new file called 'student_avg.txt'.
WDS uses Port 4011 to listen to PXE boot requests
(194°F-32)×5/9
= 90°C
therefore the answer is 90degrees Celcius
