Informatics Practices
Consider the following tables:
Table 1:
ATHLETE, which stores AthleteID, Name, Country. The table displays basic information of the athletes.
Table 2:
MEDALS, which stores AthleteID, Sport, and Medals. The table displays the number of medals won by each athlete in their respective sports.
Table: ATHLETE
| AthleteID | Name | COUNTRY |
|---|---|---|
| 101 | Arjun | INDIA |
| 102 | Priya | INDIA |
| 103 | Asif | UAE |
| 104 | Rozy | USA |
| 105 | David | DENMARK |
Table: MEDALS
| AthleteID | Sport | Medals |
|---|---|---|
| 101 | Swimming | 8 |
| 102 | Track | 3 |
| 103 | Gymnastics | 5 |
| 104 | Swimming | 2 |
| 105 | Track | 6 |
Write appropriate SQL queries for the following:
I. Display the sports-wise total number of medals won.
II. Display the names of all the Indian athletes in uppercase.
III. Display the athlete name along with their corresponding sports
Related Questions
I. Write an SQL statement to create a table named STUDENTS, with the following specifications:
Column Name Data Type Key StudentID Numeric Primary Key FirstName Varchar(20) LastName Varchar(10) DateOfBirth Date Percentage Float(10, 2) II. Write SQL Query to insert the following data in the Students Table
1, Supriya, Singh, 2010-08-18, 75.5
Consider the following tables:
Table 1:
EMPLOYEE which stores Employee ID (EMP_ID), Employee Name (EMP_NAME), Employee City (EMP_CITY)
Table 2:
PAYROLL which stores Employee ID (EMP_ID), Department (DEPARTMENT), Designation (DESIGNATION), and Salary (SALARY) for various employees.
Note: Attribute names are written within brackets.
Table: EMPLOYEE
EMP_ID EMP_NAME EMP_CITY 1 ABHINAV AGRA 2 KABIR FARIDABAD 3 ESHA NOIDA 4 PAUL SEOUL 5 VICTORIA LONDON Table: PAYROLL
EMP_ID DEPARTMENT DESIGNATION SALARY 1 SALES MANAGER 75000 2 SALES ASSOCIATE 50000 3 ENGINEERING MANAGER 95000 4 ENGINEERING ENGINEER 70000 5 MARKETING MANAGER 65000 Write appropriate SQL queries for the following:
I. Display department-wise average Salary.
II. List all designations in the decreasing order of Salary.
III. Display employee name along with their corresponding departments.
During a practical exam, a student Ankita has to fill in the blanks in a Python program that generates a bar chart. This bar chart represents the number of books read by four students in one month.
Student Name Books Read Karan 12 Lina 9 Raj 5 Simran 3 Help Ankita to complete the code.
import _____ as plt #Statement-1 students = ['Karan', 'Lina', 'Raj', 'Simran'] books_read = [12, 9, 5, 3] plt.bar( students, _____, label='Books Read') #Statement-2 plt.xlabel('Student Name') plt._____('Books Read') #Statement-3 plt.legend() plt.title('_____') #Statement-4 plt.show()I. Write the suitable code for the import statement in the blank space in the line marked as Statement-1.
II. Refer to the graph shown above and fill in the blank in Statement-2 with suitable Python code.
III. Fill in the blank in Statement-3 with the name of the function to set the label on the y-axis.
IV. Refer the graph shown above and fill the blank in Statement-4 with suitable Chart Title.
Rahul, who works as a database designer, has developed a database for a bookshop. This database includes a table BOOK whose column (attribute) names are mentioned below:
BCODE: Shows the unique code for each book.
TITLE: Indicates the book’s title.
AUTHOR: Specifies the author’s name.
PRICE: Lists the cost of the book.
Table: BOOK
BCODE TITLE AUTHOR PRICE B001 MIDNIGHT'S CHILDREN SALMAN RUSHDIE 500 B002 THE GOD OF SMALL THINGS ARUNDHATI ROY 450 B003 A SUITABLE BOY VIKRAM SETH 600 B004 THE WHITE TIGER ARAVIND ADIGA 399 B005 TRAIN TO PAKISTAN KHUSHWANT SINGH 350 I. Write SQL query to display book titles in lowercase.
II. Write SQL query to display the highest price among the books.
III. Write SQL query to display the number of characters in each book title.
IV. Write SQL query to display the Book Code and Price sorted by Price in descending order.