Algorithm : The following algorithm is used to opens an output file, writes the numbers from “1” to “100” to it and then closes it. Open a file named “number_list.txt” with “w” mode using “open()” method to write a data into the file and assign the object to the “numberfile” variable. Define a “for” loop to assign the numbers from “1” to “100” and then write this numbers to the file using “write()” method . A “write()” method takes only a single string argument. So, convert the numeric value into string using the method “str()”. Close the file using “close()” method.

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Q4: Consider the following MAILORDER relational schema describing the data for a mail order company. (Choose five only). PARTS(Pno, Pname, Qoh, Price, Olevel) CUSTOMERS(Cno, Cname, Street, Zip, Phone) EMPLOYEES(Eno, Ename, Zip, Hdate) ZIP CODES(Zip, City) ORDERS(Ono, Cno, Eno, Received, Shipped) ODETAILS(Ono, Pno, Qty) (10 Marks) I want a detailed explanation to understand the mechanism how it is Qoh stands for quantity on hand: the other attribute names are self-explanatory. Specify and execute the following queries using the RA interpreter on the MAILORDER database schema. a. Retrieve the names of parts that cost less than $20.00. b. Retrieve the names and cities of employees who have taken orders for parts costing more than $50.00. c. Retrieve the pairs of customer number values of customers who live in the same ZIP Code. d. Retrieve the names of customers who have ordered parts from employees living in Wichita. e. Retrieve the names of customers who have ordered parts costing less…

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Chapter 10, Problem 3AW

Program Plan Intro

Algorithm:

The following algorithm is used to opens an output file, writes the numbers from “1” to “100” to it and then closes it.

Open a file named “number_list.txt” with “w” mode using “open()” method to write a data into the file and assign the object to the “numberfile” variable.

Define a “for” loop to assign the numbers from “1” to “100” and then write this numbers to the file using “write()” method .

A “write()” method takes only a single string argument. So, convert the numeric value into string using the method “str()”.

Close the file using “close()” method.

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