Question

A binary file “STORE.DAT” has structure ( ITEM_ID, ITEM_NAME, QTY,PRICE). Write a

function Display_ Rec() in python to display the details of items have quantity is more than 35 from

the file “STORE.DAT” and also print the total number of records

in the file.​

Answer 1

Explanation:

A binary file “STUDENT.DAT” has structure (admission_number, Name, Percentage). Write a function countrec() in Python that would read contents of the file “STUDENT.DAT” and display the details of those students whose percentage is above 75. Also display number of students scoring above 75%.Read more on Sarthaks.com - https://www.sarthaks.com/969038/a-binary-file-student-dat-has-structure-admissionnumber-name-percentage

Answer 2

Answer:

import pickle

def Display_Rec() :

   file=open("STORE.DAT",'rb')

   count=0

   while True:

       try:

           R=pickle.load(file)

           print(R)

           count+=1

           if R[2]>35:

           print("Item_id",R[0])

           print("Item_name",R[1])

       except:

           break

   print(count)

   f.close()

   

Explanation: