Make a payroll system depending on your designed/created database. The system should be able to compute for the following: a) gross pay (number of days worked x rate per day); b) tax ( 5% if the gross salary is < 30,000: 7% if > 30,000 but <= 50,000; 10% if > 50,000); c) other fixed deductions which should be in your database (like SSS and Pag-ibig); c) net pay (gross pay - all deductions). You could add other process depending on your created/designed database. Display the database before and after update. Design your own GUIs (input/output windows).

Make a payroll system depending on your designed/created database. The system should be able to compute for the following: a) gross pay (number of days worked x rate per day); b) tax ( 5% if the gross salary is < 30,000: 7% if > 30,000 but <= 50,000; 10% if > 50,000); c) other fixed deductions which should be in your database (like SSS and Pag-ibig); c) net pay (gross pay - all deductions). You could add other process depending on your created/designed database. Display the database before and after update. Design your own GUIs (input/output windows).

A Guide to SQL

9th Edition

ISBN:9781111527273

Author:Philip J. Pratt

Publisher:Philip J. Pratt

Chapter2: Database Design Fundamentals

Section: Chapter Questions

Problem 11RQ

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struct student { char name[20]; char studentID[10]; char phonenum [9]; char advisor [20]; float gpa; } Operations needed: addnewStudent { purpose: to create a new student in the database input: name, studentID.phonenum,advisor.gpa output: none } Name another operation besides add that we could use for our student data structure.
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. The structure of the tables is described in the following crows foot ERD:
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.
FUNDAMENTAL DATABASE SUBJECT: Case: A car wash owner wants to monitor the inventory of products and sales of the business. Create a database design in preparation for a system development that would: Store and monitor the supply of products; The number of vehicle washed by a car wash boy. Vehicles can be classified according to its type (motorcycle, van, bus, etc.). The list of vehicles washed by a car wash boy can be monitored. Salary per employee and the vehicles washed can be retrieved. Car wash history per vehicle can be check also. We already Identified the possible tables, so your task will be: 1. Add data on the tables (assume that this is not normalized yet) 2. reflect on the table and follow the normalization steps base on the rules. 3. normalize its table 4. add all table in one document (lucidchart/google docs), should have relationships and cardinality. 5. make sure that it is in highest normal form, highest will be BCNF (if needed).
A database has four transactions. Let min sup = 60% and min conf = 80%.cust ID TID items bought (in the form of brand-item category)01 T100 {King’s-Crab, Sunset-Milk, Dairyland-Cheese, Best-Bread}02 T200 {Best-Cheese, Dairyland-Milk, Goldenfarm-Apple, Tasty-Pie, Wonder-Bread}01 T300 {Westcoast-Apple, Dairyland-Milk, Wonder-Bread, Tasty-Pie}03 T400 {Wonder-Bread, Sunset-Milk, Dairyland-Cheese}(a) At the granularity of item category (e.g., itemi could be “Milk”), for the ruletemplate,∀X ∈ transaction, buys(X,item1) ∧ buys(X,item2) ⇒ buys(X,item3) [s,c],list the frequent k-itemset for the largest k, and all the strong association rules(with their support s and confidence c) containing the frequent k-itemset for thelargest k.(b) At the granularity of brand-item category (e.g., itemi could be “Sunset-Milk”),for the rule template,∀X ∈ customer, buys(X,item1) ∧ buys(X,item2) ⇒ buys(X,item3),list the frequent k-itemset for the largest k (but do not print any rules).
JoziCleaners is local cleaning service that is looking to upgrade their current operations by making use of a database to keep track of the teams, houses, clients and billings of each client per/week. Each house is cleaned by one or more teams. A team goes out to a particular house on a certain day of the week. Each cleaning team has a team leader. Every cleaner eams R150 per day, except the team leader who earns a unique amount. The report that the JoziCleaners' manager produced in Microsoft Excel is illustrated as a spreadsheet in Figure 1 below. Day Client Client Name Team Members Team Leader Leader Total Code ID Wage Monday Aeliana Gebahard T3 6. Jaymes Merrickson R 350 R 850 C10 Alfher Dareia T1 Geoffrey Glover R 250 R 750 C8 Felina Diodotus T2 Elmer Victorson R 300 R 700 Brutus Sigihild Sigibert Quirinus Brutus Sigihild C9 T4 Norris Mamadou R 400 R1 000 Tuesday CS T3 Jaymes Merrickson R 350 R 850 C9 T2 5 Elmer Victorson R 300 R 700 Alfher Dareia Duncan Gardyner Geoffrey Glover…
ERD Model Projects, Inc., is an engineering firm with approximately 500 employees. A database is required to keep track of all employees, their skills, projects assigned, and departments worked in. Every employee has a unique number assigned by the firm and is required to store his or her name and date of birth. If an employee is currently married to another employee of Projects, Inc., the date of marriage and who is married to whom must be stored; however, no record of marriage is required if an employee’s spouse is not also an employee. Each employee is also given a job title (e.g., engineer, secretary, and so on). An employee does only one type of job at any given time, and we only need to retain information for an employee’s current job.There are 11 different departments, each with a unique name. An employee can report to only 1 department. Each department has a phone number.To procure various kinds of equipment, each department deals with many vendors. A vendor typically supplies…
An insurance company needs to store their salespeople’s information who are selling their insurance policies. They already have a database with multiple tables, one of the tables (Salesperson) stores information about each salesperson along with the bonus percent they receive, based on the city where the insurance is sold. The table has the following fields: Salesperson(spID, spName, spBirthDate,spCitySelling, bonusPercent) spID: Unique identification number of the salesperson. spName: Full name of the salesperson. spBirthDate: Birthdate of the salesperson. spCitySelling: The city in which the salesperson is selling the insurance. bonusPercent: The bonus percent received by the salesperson based on the city in which he/she sells the insurance. Each salesperson can sell the insurance in just one city. However, for a city, there can be more than one salesperson appointed. Also, the bonus percent is fixed for each city. For example, all of the salespeople who sells insurance in…
A small Hotel owner wish to computerized the management of hotel operations. You are asked to assist in the development of a database for the hotel. The database keeps data about ROOM, EMPLOYEE and FACILITY. From the discussion session with the hotel manager, you have identified the following information: • Three types of ROOMS offered by the hotel are single, double and deluxe room. Each room is identiﬁed by its unique number. • In general, there are two main types of the hotel jobs, GUEST SERVICES and ADMINISTRATIVE & SUPPORT. • HOTEL MANAGER, EVENT PLANNER and ACCOUNTANT are the administrative and support job positions in the hotel. • Types of employee falls under the guest services are RECEPTIONIST, HOUSEKEEPER, or KITCHEN STAFF. • Each RECEPTIONIST is identiﬁed with her/his name, employee number and years of experience. • The receptionists need to assign a HOUSEKEEPER to each room every morning or whenever it required before the room can be assigned to a guest to ensure…
branch(branchhame, branch+citysassets} customer (HD, Customer name, customer street, customer city) loan loan number branch_name, amounty borrower(ID; loan_number account (account_number, branch name, balance)e depositor (HDs account number)- Figure le Consider the bank database in Figure 1, where the primary keys are underlined. Each branch might have many loans or accounts, associated with borrowers or depositors, respectively. Construct the following SQL queries for this relational database. 1. Find the name of each branch that has at least one customer who has an account in the bank and who lives in the "Harrison" city. Make sure each branch name only appears once. 2. Find the ID of each customer who lives on the same street and in the same city as customer "12345". (1) Please use "tuple variables". e (2) Please use "derived relations" or “with". 3. Find the ID of each customer of the bank who has an account but not a loan. 4. Find the total sum of all loan amounts for each branch…
Problem: design a er diagram for a database to keep track of building inspections required by a department of Damaged Buildings (DB). DB building inspections are requested by builders every month. Each building inspection is either passed or not. Inspections have a type code (3 characters, e.g. PLU, FRM, ELE, etc.) and possibly sequencing requirements. Some inspections cannot be performed before other inspections, e.g. final plumbing inspection cannot be performed until the framing inspection is passed. Each inspection has a numeric score, with 75 or more out of 100 being sufficient for a pass status. Each inspection data contains the date of inspection, inspector identification, inspection score, and textual information about the inspection. The textual information can be updated later, but the score can never be changed. FODB maintains a pool of inspectors. Each inspector has a unique 5 digit employee ID, name, and date they were hired. They can conduct any type of inspection but…
Course: Database systems: design and application

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