If you sell a house more than once, it is treated as different "property" for each sale. Draw an entity-relationship diagram and write a database design outline. Q2. Law Office: You are trying to automate the records for your uncle's law firm. Multiple attorneys work for the firm, and for each of them you want to store their first name, last name, date hired, hourly billing rate, and date promoted to partner (blank if the attorney is not a partner). Each attorney has multiple cases, which is identified by a unique "docket number". Each case has a name and description, is worked on by only one attorney, and involves a single client. For each client, you want to store a first name, last name, middle name, phone number, address, city, state, and zip code (assume you do not have a zip-code table). Finally, you want to keep track of the billable hours spent on each case. For a single case, this comprises information that looks like Hours Billed Date 2/24/2005 2/26/2005 3/12/2005 Description Prepare brief Client phone call Prepare settlement Client meeting 4.4 0.3 2.0 4/15/2005 0.7 Draw an entity-relationship diagram and write a database design outline.

If you sell a house more than once, it is treated as different "property" for each sale. Draw an entity-relationship diagram and write a database design outline. Q2. Law Office: You are trying to automate the records for your uncle's law firm. Multiple attorneys work for the firm, and for each of them you want to store their first name, last name, date hired, hourly billing rate, and date promoted to partner (blank if the attorney is not a partner). Each attorney has multiple cases, which is identified by a unique "docket number". Each case has a name and description, is worked on by only one attorney, and involves a single client. For each client, you want to store a first name, last name, middle name, phone number, address, city, state, and zip code (assume you do not have a zip-code table). Finally, you want to keep track of the billable hours spent on each case. For a single case, this comprises information that looks like Hours Billed Date 2/24/2005 2/26/2005 3/12/2005 Description Prepare brief Client phone call Prepare settlement Client meeting 4.4 0.3 2.0 4/15/2005 0.7 Draw an entity-relationship diagram and write a database design outline.

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 following three tables make up a simple reservation system for a small campground. The database should allow for a camper to make multiple reservations for future dates and for a camping spot to have several reservations for upcoming visits. Table: Camper CAMPER_NUMBER 1000 1001 1002 1003 CAMPER_LAST_NAME Jones Schmidt Williams Cooper CAMPER_FIRST_NAME Jamie Pat Clifford Amanda CAMPER_ADDRESS 1278 Essex Pl 4954 Spangled Way 956 Segull Lane P. O. Box 998877 CAMPER_CITY Birmingham El Paso Portland Portsmouth CAMPER_STATE AL TX ME OH CAMPER_ZIP_CODE 45251 79919 4108 45662 CAMPER_DRIVERS_LICENSE JJ998743-98 87632434 WIL885123 765A876B897 CAMPER_EMAIL jjones@somewhere.com patwonderfu34l@nowhere.net williams98342@foomail.com coopera@nowhere.net Table: Spot SPOT_NUMBER 101 102 103 104 SPOT_NAME The Pines The Glade Teardrop Spot Tent In Trees…
The following relations are part of a general store database: customer(custnum, custname, city, creditlimit) orders(ordernum, orderdate, filled, custnum) orderline(ordernum, productnum, quantity, salesprice) product(productnum, descr, producttype, msrp, onhand) Here is a sample data (assume there are more records)Using PROJECT, SELECT and JOIN, write the sequence of operations to answer each of the following questions: 1a. What are the names and customer numbers of customers who are from Mississauga? 1b.What are the names of products (descry) and product types of products purchased by customers from brapton?
Task 2: The Car Maintenance team also wants to store the actual maintenance operations in the database. The team wants to start with a table to store CAR_ID (CHAR(5)), MAINTENANCE_TYPE_ID (CHAR(5)) and MAINTENANCE_DUE (DATE) date for the operation. Create a new table named MAINTENANCES. The PRIMARY_KEY should be the combination of the three fields. The CAR_ID and MAINTENANCE_TYPE_ID should be foreign keys to their original tables. Cascade update and cascade delete the foreign keys. Create a new table to store maintenance operations Test Query DESCRIBE MAINTENANCES Expected Results Field Type Null Key Default Extra CAR_ID char(5) NO PRI NULL MAINTENANCE_TYPE_ID char(5) NO PRI NULL MAINTENANCE_DUE date NO PRI NULL
Task 2: The Car Maintenance team also wants to store the actual maintenance operations in the database. The team wants to start with a table to store CAR_ID (CHAR(5)), MAINTENANCE_TYPE_ID (CHAR(5)) and MAINTENANCE_DUE (DATE) date for the operation. Create a new table named MAINTENANCES. The PRIMARY_KEY should be the combination of the three fields. The CAR_ID and MAINTENACNE_TYPE_ID should be foreign keys to their original tables. Cascade update and cascade delete the foreign keys. Answer in MYSQL please
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
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
Task 1: The InstantRide Management team founded a new team for car maintenance. The new team is responsible for the small maintenance operations for the cars in the InstantRide system. The main idea is to take actions faster and minimize the time spent for the maintenance. Therefore, the Car Maintenance team wants to store MAINTENACE_TYPE_ID (char(5)) and a MAINTENANCE_TYPE_DESCRIPTION (varchar(30)) in the database. Using MAINTENANCE_TYPE_ID as the PRIMARY KEY, create a new table, MAINTENANCE_TYPES, and send the table description with the column names and types to the Car Maintenance team.
Page - 1 DBMS - TASK 1: Draw an ERD and Map it to relational schema. Please complete reading page 1 before going to page 2. In this task, you will be given a text that describes a company (in page 2). Each student should complete the steps below to fully solve the task Represent the company description as an ER-diagram, including all relevant constraints as the following steps: - Each student should download Lucidchart app Every student should use Lucidchart to draw the ERD Edit Lucidchart Blank diagram Select View Insert Arrange Help 80 What's New Saved Start a free trial to access unlimited shapes and documents! X BIUAT- 2 px None None 408 Liberation Sans ▾ 10 pt + Shapes O Standard × T Flowchart 000 ☐ ODOT ☐ ☐ ☐ ☐ ☐☐ )>0 × TU Xx 14 << ΔΟ ▼ Shapes ΠΑ ☐ ☐ Name B Present MA when you create After each entity ID print screen, your name include your user ID should be shown university ID number Department 0190334 Dep_ID Employee 0190334 Name
ABC department store keeps information on departments, products, and employees. For each department, the department ID, name and office phone extension are stored. For each employee, the employee ID, and name are stored. A department can have many employees and each employee can be assigned to multiple departments. Each department is managed by one employee. Each department sells many products and each product is sold by only one department. Products can be shoes, clothes, or other miscellaneous. The product ID and price are stored for each product. No additional data is stored for the miscellaneous products. For all shoes, shoe type, shoe color and shoe size are also stored. For all clothes, the season (one of: winter, spring, summer, year-round) is stored. Clothes can be shirts, pants or dresses. For shirts, collar size, sleeve size and type are stored. For pants, waist size, length and type are stored. For dresses, size, and type are stored. Draw the Crow’s foot ERD (including all…