Identify the errors in the following DFD. Clearly write what are the errors available in the same. (5 marks)DonosBankDonationDepositDonationProcess donationDonation listMember donationDonationMember infoMember infoInfo1.41.2Process applicationMake memberUpdate member listApplication formMember IDMemer into2 Member listProspective MembersMembens1.5Generate documentUpdate mailing listMember addresE Mailing listFile letterLetter18Letter1.71.9Mail prospedPublishMail members

The errors of the DATA FLOW DIAGRAM ARE GIVEN BELOW.

Identify the errors in the following DFD. Clearly write what are the errors available in the same. (5 marks) Donos Bank Donation Deposit Donation Prooes donation Donation list Member donation Donation Member info Member info 1.3 Info 1.2 Process application Make member Update member list Application form Member ID Memer into Member liet Prospeative Members Members 1.5 Generate doaument Update mailing list Member addres EMailing list File letter Letter 1.8 Letter 1.7 Mail prospect Publish Mail members

Identify the errors in the following DFD. Clearly write what are the errors available in the same. (5 marks) Donos Bank Donation Deposit Donation Prooes donation Donation list Member donation Donation Member info Member info 1.3 Info 1.2 Process application Make member Update member list Application form Member ID Memer into Member liet Prospeative Members Members 1.5 Generate doaument Update mailing list Member addres EMailing list File letter Letter 1.8 Letter 1.7 Mail prospect Publish Mail members

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

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An Art Museum needs to keep track of its artwork and exhibitions. The museum has a collection of artwork. Each piece of art has a unique id [ArtID], an artist, year and title. Artwork is categorized by type. There are two types, paintings and sculptures. Paintings have a paintType and style. Sculptures have a material, height and weight. Artwork is frequently shown in exhibitions. Each exhibition has a unique name, startDate, endDate. A listing of the artwork displayed at an exhibition is also retained. Below is an E-R diagram for a database to help the Art Museum. Provide appropriate names for entities E1, E2, E3, E4 identifiers 11, 12, 13, 14 missing attributes and relationship cardinality RC1 and relationship type RT1. Start_date End_date E1 E1 11 RC1 PaintType Style E3 13 A1 Title Year A/ A A/ A/ A/ A/ A/ A/ A A/ A/ E2 12 A/ E2 E3 E4 11 12 13 14 A1 A2 RC1 RT1 RT1 A2 Height Weight E4 14 Activate Go to Settin
15. Circle all areas that break the referential integrity constraint. (8 Points) Not a Relational Table EmpID EmpInfo EmpInfo EmpPhone 0001 Joe 0002 Sue 0001 Joe 0004 Pat 0005 Mike M FMF M x234 x345 x234 x567, x789 x678 EmpBdate 1/11/1985 2/7/1983 1/11/1985 3/8/1971 a long time ago
• Write a simple stored function that Takes a gender as an input ● Find the staff whose gender matches the input Return the results Write a simple stored procedure that Takes a gender as an input Find the staff whose gender matches the input • Print the results
Write a stored procedure named updateUnitsOnOrder(). The updateUnitsOnOrder ()procedure should update the UnitsOnOrder field of those products that are discontinued. It should set the UnitsOnOrder field to 99 for those discontinued products. Hint: There is no need to use cursor processing for this stored procedure.
1. Cruise(cid, name, number_of_days, price, number_of_stops) Port(pid, city, country, number_of_stars, capacity) Stops(cid, pid, stopno, stopduration) Assume that the number_of_stops attribute of the Cruise table contains the total number of stops for each cruise. Write a trigger that will be fired whenever the Stops table is modified to increase or decrease the number_of_stops value accordingly. *
calculate_new_balance Given a starting balance (a number), and a list of transaction tuples, calculate the final balance for an account. Transaction tuples are of the shape ("description", amount, "withdrawal") , or ("description", amount, "deposit"). The last entry in the tuple will be either "withdrawal" or "deposit". Every withdrawal decreases the balance of the account by the specified amount, and every deposit increases the balance. The return value is the new account balance, as a number. (which could be negative) Sample calls should look like: >>> calculate_new_balance(100, [("payday", 20, "deposit"), ("new shoes", 50, "withdrawal"), ("illicit winnings", 200, "deposit")])270>>> calculate_new_balance(100, [])100
c# Create a small Sports database with two tables: Team and Athlete. The Team table should include fields for the type of team (e.g., basketball), coach's name (both last and first), and the season the sport is most active (S for spring, F for Fall, or B for both). The Athlete table should include fields for student number, student first and last names, and type of sport. Use the same identifier for type of sport in both tables to enable the tables to be related and linked. Populate the tables with sporting teams from your school. Write a C# program that displays information about each team, including the names of the athletes. The data base we have provided to us just need to know how to program it in with the other guidelines given.
Look up the average evaluation score earned by instructor Egan for the Emergency Care course: In cell E14, begin to enter a formula using the XLOOKUP Use the instructor name in cell E12 as the value to look up. Use a structured reference to the header row of the Evaluations table as the table to search. Return the value in the range E4:I4. I need help with the sttructured reference refered in #3
Alternate keys: Identify at least five keys (not already listed as PK or FK) needed by end users. These indexes would be considered Alternate or Secondary keys and are mostly used for queries and quick reporting. They may contain multiple columns. Books Authors Bookstore Members Sales transaction table Inventory table
Assume the EMPLOYEE table contains four attributes, ID, DEPT, SALARY and NAME, and has the following rows ID DEPT SALARY NAME 100 SALES 40000 Smith 101 RD 38000 Terry 102 HR 60000 David 103 SALES 58000 Ellie 104 RD 70000 Judy The DEPARTMENT table contains two attributes, DEPTNAME and PHONE, and has the following rows: DEPTNAME PHONE RD 8596001234 SALES 8596005555 HR 8596009876 A.) The EMPLOYEE table needs to enforce the following integrity constraints: • The ID is the primary key. • The DEPT column is a foreign key that references the DEPTNAME in the DEPARTMENT table, so that any value that appears in the DEPT column should also exist in the DEPARTMENT table. • The value for the NAME column can never be null. What should be the statement used to create the EMPLOYEE table, if 1) the table was created as a partitioned table such…
C sharp Table: Student (the headers are the field names in the Students table) StudentID Name Age Gender ProgramID 791 Stephanie Brown 19 Female BCS 236 Shannon Dawn 25 Female BA 618 Geoff Berg 24 Male ARET 256 Andrew Schilling 22 Male BSC 902 Gary Sang 23 Male DAAD Note: There is a StudentDataSet with a Student table, a StudentTableAdapter, a StudentBindingSource, and a StudentDataGridView control on the form.Note: There is an Average query, named Average, that returns the average age of the student from the Student table.Note: There is also Max query, named Highest, that returns the highest age of the student from the Student table.Write the code you would place in the AverageButton click event on your form to call the Average query and the Highest query and display in a DifferenceLabel, the difference between the highest age of a student and the average age.
Q.2: Part I: review the customer and agent tables given below, and provide the result of the following relational operators: Draw new tables and give the name of the relational operator: View all customers whose zip code is 32145 View all agents' phone numbers (vertical view) Part II: Review the customer and agent tables given below, and provide the results of performing the three join relational operators shown below (you may create a table for each result or write your answer): Inner join Left join Right join FIGURE Two tables that will be used in join illustrations 3.10 Table name: CUSTOMER Table name: AGENT CUS CODE CUS LNAME CUS ZIP AGENT_CODE 1132445 1217782 1312243 1321242 1542311 AGENT CODE AGENT_PHONE 125 167 231 333 Walker 32145 231 6152439887 32145 125 Adares 6153426778 Rakowski 34129 167 6152431124 Rodriguez 37134 125 9041234445 Smithson 37134 421 1657399 Vanloo 32145 231 SOURCE: Course Technology Cengage Learning