A database has four transactions. Let min_sup 60% and min_conf = 80%.TIDDateItems Bought{K, A, B, D}10/15/2018 (D, A, C, E, B}{С, А, В, E)(В, А, D}10010/15/201820030010/19/201840010/22/2018Find all frequent items using Apriori and FP-growth respectively. Compare the efficiency of the(i)two meaning process.

Answered: A database has four transactions. Let…

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

See similar textbooks

Similar questions

The problems for this chapter use a database for a simple department store that sells items to customers and wants to keep track of the invoices, the selling price (if an item is on sale), and the sales tax (7%) to be collected on some items. Every customer and invoice are assigned unique numbers. All items have a Universal Product Code (UPC) number and bar-code assigned to each unique item. Food and non-carbonated beverages are not taxed, but clothing, home goods, and most other items are.
Write relational algebra expressions for database provided
Database system concept 7th based on Exercise problems 3.9, 3.10, 3.16, and 3.17) Consider the relational database of Figure 3.19, where the primary keys are underlined. Given an expression in SQL for each of the following queries. Find the ID of each employee who does not work for “First Bank Corporation”. SQL Query: Find the ID, name, and city of residence of each employee who works for “First Bank Corporation” and earns more than $10,000. SQL Query: Find the ID of each employee who earns more than every employee of “Small Bank Corporation”. SQL Query: Assume that companies may be located in several cities. Find the name of each company that is located in every city in which “Small Bank Corporation” is located. Your query should run on. SQL Query: Find the name of the company that has the most employees (or companies, if there is a tie). SQL Query: Find the name of each company whose employees earn a higher salary on average, than the average salary at “First Bank Corporation”. SQL…
Use the following relational schema for this homework: Sailors(sid: integer, sname: string, rating: integer, age: real) Boats(bid: integer, bname: string, color: string) Reserves(sid: integer, bid: integer, day: date) • Reserves ®: 100,000 tuples stored in 1,000 pages. There are 100 boats. Each boat is equally poplar (i.e., each has the same number of reservations). • Sailors (S): Stored in 500 pages. There are 10 distinct rating levels (1 to 10), each with the same number of sailors. 1. The sid column takes up 20% of the data size of the Reserves relation. The sid and sname columns take up 70% of the data size of the Sailor relation. a. If you are given 3 memory pages, describe an efficient execution plan for the execution tree in the right. b. Estimate the processing time (I/O cost) of your computation stratgegy. You do not have to include the cost of writing the query result in your analysis. 2. If you have 4 memory pages, explain a better computation strategy to take advantage of…
Figure Q3.13 The Ch03_VENDINGCO database tables Table Name: BOOTH BOOTH _PRODUCT BOOTH _PRICE Chips 1.5 Cola 1.25 Energy Drink 2 Table Name: MACHINE MACHINE _PRODUCT MACHINE _PRICE Chips 1.25 Chocolate Bar 1 Energy Drink 2 Write the relational algebra formula to apply an INTERSECT relational operator tothe tables shown in Figure Q3.13.
Write SQL queries for the designed database which will return: - All people on the same flight - All planes on the same destination - If the sum of all cargo weight on the plane is under a threshold.
Corporation: id 15 17 20 instance: Company: cid id 1 2 3 4 5 15 17 15 20 15 Assumptions: id in Company references id in Corporation. • cid in Department references cid in Company. Department: did cid 1 2 3 4 5 6 7 8 9 10 11 12 5 1 2 2 3 5 1 3 3 1 2 4 Each option starts from the original tables (given above) NOT from the tables modified by the previous option You don't need to copy the entire table. Just explain the action of each operation. (a) Suppose that all the foreign keys are declared using on delete restrict. What is the effect of the instruction delete from Company where cid=2? (b) Suppose that all the foreign keys are declared using on delete cascade. What is the effect of the instruction delete from Corporation where id-15?
b) Consider the relational table PARTSUPP of the TPCHR sample database. Find SELECT statements that will use the index in the ways specified in the questions (i) to (iv) below. The values used to create the query such that the queries can meet the specified criteria is up to you, but the values must be sensible. i. ii. iii. iv. Execution of the first SELECT statement must traverse the index vertically then horizontally and it must not access the relational table PARTSUPP. Execution of the second SELECT statement must traverse the index vertically then horizontally and it must access the relational table PARTSUPP. Execution of the third SELECT statement must traverse the leaf level of the index horizontally and it must not access the relational table PARTSUPP. Execution of the fourth SELECT statement must traverse the leaf level of the index horizontally and it must access the relational table PARTSUPP. Deliverables Submit your spooled file solution 1b.lst (or solution 1b.pdf) that…
I am having some trouble with this for an assignment in Database. I am trying to create some queries for this homework: Assignment 5: Data Definition language and Transaction in MySQL This is what I am currently working on: On June 3, 2019, customer ‘10010’ makes a payment of $100 in cash. The payment ID is 3428. The query as it is as of this moment: SELECT PAYMENTINSERT INTO PAYMENT (PMT_ID,PMT_DATE,CUS_CODE,PMT_AMT,PMT_TYPE,PMT_DETAILS)VALUES(3428,6-3-2019,10010,100.00,cash,account),UPDATE CUSTOMERSET CUS_BALANCE = CUS_BALANCE + 100WHERE CUS_CODE=10010,COMMIT 2. On May 11, 2019, customer ‘10012’ makes a credit purchase of one unit of product ‘11QER/31’ with a unit price of $110.00; the invoice total is $118.80. The invoice number is 10983, and this invoice has only one product line. [note: no payment has been made here] The Query as of now: BEGIN TRANSACTION; INSERT INTO VOICE VALUES (10983, 10012, ’5-11-2019’), INSERT INTO LINE VALUES (10983, 1, ‘11QER/31’, 1, 110.00), UPDATE…
Figure Q3.13 The Ch03_VENDINGCO database tables Table Name: BOOTH BOOTH _PRODUCT BOOTH _PRICE Chips 1.5 Cola 1.25 Energy Drink 2 Table Name: MACHINE MACHINE _PRODUCT MACHINE _PRICE Chips 1.25 Chocolate Bar 1 Energy Drink 2 Write the relational algebra formula to apply a UNION relational operator to thetables shown in Figure Q3.13
In OES4 database, we can verify the values stored in subtotal field by using the following 1: col gross_sales for 99999999 col subtotal for 99999999 select o.order_no,sum(qty*Unit_cost) Gross_Sales, sum(o.subtotal) subtotal from orders o, orderline ol, product p where o.order_no=ol.order_no and ol.product_no=p.product_no group by o.order_no; II: col gross_sales for 99999999 col subtotal for 99999999 select o.order_no,sum(qty*Unit_cost) Gross_Sales, sum(o.subtotal) subtotal from orders o, orderline ol, product p where o.order_no=ol.order_no and ol.product_no=p.product_no group by o.order_no; I & II: are correct I & II: are not correct | || I & II: are not correct I & II: are correct
Models Airlines Fleet AID MID Acount manufacturer model capacity Boeing Воeing Вoeing MID AID name 1 777 340 1 American Airlines 1 3 15 2 787 260 United Airlines 1 2 10 3 737 140 Delta Air Lines 2 2 14 4 Airbus 320 230 4 Southwest Airlines 1 Airbus 380 560 5 Alaska Airlines 3. 6. 24 9. Boeing 747 420 3 4 9 5 2 7 3 16 4. Using the above instances of the relational tables Models, Airlines and Fleets, determine whether the following functional dependencies hold. (Write yes/no) 10 ) manufacturer - model Answer: ii) MID – capacity Answer: ii) model → capacity Answer: iv) MID - Acount Answer: v) AID, MID → Accunt Answer:

SEE MORE QUESTIONS

Recommended textbooks for you

Database System Concepts

Computer Science

ISBN:

9780078022159

Author:

Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:

McGraw-Hill Education

Starting Out with Python (4th Edition)

Computer Science

ISBN:

9780134444321

Author:

Tony Gaddis

Publisher:

PEARSON

Digital Fundamentals (11th Edition)

Computer Science

ISBN:

9780132737968

Author:

Thomas L. Floyd

Publisher:

PEARSON

Database System Concepts

Computer Science

ISBN:

9780078022159

Author:

Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:

McGraw-Hill Education

Starting Out with Python (4th Edition)

Computer Science

ISBN:

9780134444321

Author:

Tony Gaddis

Publisher:

PEARSON

Digital Fundamentals (11th Edition)

Computer Science

ISBN:

9780132737968

Author:

Thomas L. Floyd

Publisher:

PEARSON

C How to Program (8th Edition)

Computer Science

ISBN:

9780133976892

Author:

Paul J. Deitel, Harvey Deitel

Publisher:

PEARSON

Database Systems: Design, Implementation, & Manag…

Computer Science

ISBN:

9781337627900

Author:

Carlos Coronel, Steven Morris

Publisher:

Cengage Learning

Programmable Logic Controllers

Computer Science

ISBN:

9780073373843

Author:

Frank D. Petruzella

Publisher:

McGraw-Hill Education

SEE MORE TEXTBOOKS