image) i) Draw a 3D picture of a data cube. Assume that all values that are missing from the Sales table are 0.
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Assignment Data Warehouse (see image)
i) Draw a 3D picture of a data cube. Assume that all values that are missing from the Sales table are 0.
ii) Show an example of a slice from the data cube in (i).
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- consider the following tables: Table name: sales salesman_id 5001 city name commission John Paris 0.15 James New York 0.13 Neel 5002 5005 Rome 0.11 5006 lla Paris 0.13 5003 Jordan Mexico 0.12 Table name: customers customer id Cust_name city Nick grade salesman_id 100 3002 Paris 5001 3007 David New York 200 5001 3005 London 5002 Jozy Julian 200 3008 Paris 300 5003 3004 Brad New York 100 5003 Perform the following queries on the above tables: 1. Create the above tables using the validations of your choice. (4 Marks) 2. find the salesperson(s) and the customer(s) he handle. Return Customer Name, city, Salesman, commission. (3 marks) 3. Display the customer information who have salesman associated with them.Show summary of statistics by region using summary() and groupby() function. state abb region population total 1 Alabama AL South 4779736 135 2 Alaska AK West 710231 19 3 Arizona AZ West 6392017 232 4 Arkansas AR South 2915918 93 5 California CA West 37253956 1257 6 Colorado CO West 5029196 65 7 Connecticut CT Northeast 3574097 97 8 Delaware DE South 897934 38 9 District of Columbia DC South 601723 99 10 Florida FL South 19687653 669 11 Georgia GA South 9920000 376 12 Hawaii HI West 1360301 7 13 Idaho ID West 1567582 12 14 Illinois IL North Central 12830632 364 15 Indiana IN North…DCIT184 STAT181 Closely examine the following tables and use it to answer the questions that follow: department student_type student_category id |name | location | contact id name id name Computer Science Mathematics Statistics Sociology 005 | History English Linguistic North Ave 1 | +233234545453 North Ave 2 | +233234564554 North Ave 3 001 002 1 | Regular 2| Distance 3 | Sandwich 1 | Foreign 2| Local 003 +233285475547 004 East Ave 4 +233264638374 East Ave 2 +233244454744 006 East Ave 3 +233245653443 007 East Ave 4 +233268888888 course code | title dept_id | credit CSIT205 Object Oriented Techniques For IT Problem Solving Applied IT Programming Database Fundamentals Office Productivity Tools Programming Fundamentals Introduction to History History of The Gold Coast Introduction To Basic Statistics CSIT206 3 CSIT207 DCIT103 DCIT104 HIST101 5 | 3 HIST103 3 STAT101 Student id first_name last_name dob contact stud_cat_id | stud_type_id e0000001 Stephen Amankwah 1999-01-12 +233456789021 1…
- Consider the following table is used to store contact information: Name Company Address Phone1 Phone2 Phone3 ZipCode Joe АВС 123 5532 2234 3211 12345 Jane XYZ 456 3421 14454 Chris PDQ 789 2341 6655 14423 The table is considered as not normalized, explain why? And what is the INF of the table?Problem List with Expected Results Problem 1 For all departments, display department number and the sum of all salaries for each department. Name the derived column SUM_SALARY. Result WORKDEPT SUM_SALARY A00 B01 C01 D11 D21 E01 E11 E21 128500.00 41250.00 90470.00 222100.00 150920.00 40175.00 104990.00 95310.00Q1. Consider the following tables: Table name: sales salesman_id 5001 city name commission John Paris 0.15 James New York 0.13 Neel 5002 5005 Rome 0.11 5006 lla Paris 0.13 5003 Jordan Mexico 0.12 Table name: customers customer id Cust_name city Nick grade salesman_id 100 3002 Paris 5001 3007 David New York 200 5001 3005 London 5002 Jozy Julian 200 3008 Paris 300 5003 3004 Brad New York 100 5003 Perform the following queries on the above tables: 1. Create the above tables using the validations of your choice. (4 Marks) 2. find the salesperson(s) and the customer(s) he handle. Return Customer Name, city, Salesman, commission. (3 marks) 3. Display the customer information who have salesman associated with them. (3 marks)
- Customer_ID Customer_Name Order_ID Order_Date Product_Name Quantity 101 Alice 1 2023-09-01 Laptop 2 101 Alice 1 2023-09-01 Mouse 1 102 Bob 2 2023-09-02 Monitor 1 102 Bob 2 2023-09-02 Keyboard 1 103 Carol 3 2023-09-03 Laptop 1 103 Carol 3 2023-09-03 Speaker 2 For the following tables, identify the following functional dependencies where ( ? → Customer_Name). (Customer_ID → Customer_Name ). (Customer_ID, Order_ID → Customer_Name ). (Customer_ID, Order_ID, Order_Date → Customer_Name ). (Order_ID → Customer_Name ).Given this unnormalised relation: SHOW_TICKET (show_id, show_title, show_category, show_datetime, show_duration, venue_no, venue_name, seat_no, ticket_category, ticket_price) and this sample data: show_id 1032 1032 1032 1032 1038 1038 2033 2033 show_title Still We Rise Still We Rise Still We Rise Still We Rise Driftwood Driftwood Shrek Jr Shrek Jr Explain and give example/s of: (a) super key (b) candidate key (c) primary key [ (d) surrogate key [ (e) functional dependency 1 show_category show_datetime show_duration venue_no Classical Music 2 hrs 30 mins Classical Music 2 hrs 30 mins Classical Music 2 hrs 30 mins Classical Music 2 hrs 30 mins Musical 1 hrs 50 mins 1 hrs 50 mins 1hr 1 1 2 2 2 2 2 Musical Musical Musical 1hr 25/06/2022 19:00 25/06/2022 19:00 25/06/2022 19:00 26/06/2022 19:30 25/06/2022 19:00 25/06/2022 19:00 26/06/2022 11:30 26/06/2022 11:30 S Your answer must include examples drawn from SHOW_TICKET relation. $22 venue_name seat_no ticket_category ticket_price Alexander…Observe the table ENROLLMENT: ENROLLMENT TTE StudentID StudentName MajorID MajorName 111 Joe English 222 Bob History 333 Lisa H History Which of the following actions in the table ENROLLMENT will be affected by a modification anomaly (with its current 3 records)? None of the answers O Changing the name of Joe to Joseph O Changing the name of Lisa to Lizzy O Changing the name of Bob to Robert O Changing the name of English to English Literature
- A travel company would like to analyze its data in order to plan better promotional campaigns with its customers. More specifically, she would like to analyze the number and number of sales based on: ✓ Destination: hotel, city, country, region, region category (example: seaside, alpine. etc.), destination category (example: family or not), hotel category (ex: 1-4 stars); ✓ Date of purchase: day of the year, day of the week, month, year, tourist season (eg: low or high season); ✓Client: age group, sex, address, type of buyer (eg: new, recurring, etc.); 1. Provide a star schema which will allow the company to do these analyzes 2. Clearly identify the primary and foreign keys of fact and dimension tables; 3. Identify, for each dimension table, a hierarchy of levels of granularity (e.g.. attribute! attribute2...);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…Belowis a sample data for Parts and for Vendors who supply those parts. Indiscussing these data with users, we find that part numbers (but not description)uniquely identify parts and that vendor names uniquely identify vendors.Part_No Description Vendor_Name Address Unit_Cost1234 Logic Chip Fast Chips Kumasi 10.00 Smart Chips Accra 8.005678 Memory Chip Fast Chips Kumasi 3.00 Quality Chips Obuasi 2.00 Smart Chips Accra 5.00 b) List the functional dependencies in PARTSUPPLIER and identify acandidate key.c) Develop a set of 3NF relations from PART SUPPLIER