Consider the tables given below and write the relational Algebra for the following tasks Table Name: Products ProductID ProductName Unit Price SupplierlD 1 Chais 10 boxes x 20 bags 18 1 Chang 24 - 12 oz bottles 19 1 3. Aniseed Syrup 12 - 550 ml bottles 10 1 4 ChefAnton's Cajun Seasoning 48 - 6 oz jars 22 Table Name: Suppliers SupplierID SupplierName ContactName Address City 1 Exotic Liquid Charlotte 49 Gilbert St. Londona Сооper New Orleans Cajun Shelley Burke P.O. Box 78934 New Delights Orleans Grandma Kelly's Regina Murphy 707 Oxford Rd. Ann Arbor Homestead 4 Tokyo Traders Yoshi Nagase 9-8 Sekimai Tokyo Musashino-shi A. Write the Relational algebra for the following questions. i. Find all the information of products whose price is from 15 to 25 inclusively. ii. Find the lowest price of products for each supplier ID. iii. Find ID, name and address of suppliers whose city is Tokyo. B. Convert the following SQL statements to Relational Algebra expressions: i. Select * From Products Where SupplierlD in (1,2,3); ii Select ProductID, ProductName From Products Where Price between 10 and 20; 21

Three tables are given Student: studentNO, firstName, lastName, studentProgram Professor: professorID, professorProgram, professorName Student_professor: studentNO, professorID, mentor Complete the following requirements: Using the UNION operator, do a full outer join to display the student last name student program, professor name and professor program. Referring to the model created in step 2, determine the PK/FK relationships to build the SQL joining the three  Create a query/subquery to display student first name, last name and program. The student program must be same as that in the professor table and the professor program name starts with a ‘C’.  This query will use a subquery and not a join.

Please refer to the following diagram for Q19 to Q20. PERSON PK P_ID P_LNAME P_FNAME ΕMPLOYΕ P_ID EMP_HIRE_DATE STUDENT P ID STUDY ΜAIOR PK, FK1 PK, FK1 19. Which of the following statements is/are true? (1) A Person must be either a Student or an Employee. (2) A Person can neither be a Student nor an Employee. (3) A Person must be a Student or an Employee or both. a. (1) only b. (3) only c. (1) and (2) only d. (1), (2) and (3).

I need C please