Consider the following structure of an inventory Oracle database.omancutomerMMERIC ($)wRCHAR 30)VARCHAR(16DECMAL2)SALESMANLIDCUETOMERDMERC($)CUST JAMENAMEMCHAR(30CITYCOMMISSIONVARCHAR (1NUMERIC (3)CITYORADESALESMAN D ERC ($)ordersORD NOPURCH AMTNUMERIC (5)DECIMAL (8.2)ORD DATEDATECUSTOMER ID NUMERIC (5)00SALESMAN ID NUMERIC (5)Write the code to List the names of salesmen who are from the city of Paris.Use the editor to format your answer81

Where clause is used to put condition check.

Consider the following struCtu Orade database. selneman eutomer MUMERIO ($) VARCHAR 30) ARCHAR (161 DECMAL) PUSTOMERJDAERC() WOHAR () VARCHAR (S MMERC (3) SALESMANDMERIC (5) BALESMANJD NAME CUST NAME CITY COMMISSION cTY ORADE orders ORD NO PURCH AMT ORD DATE CUSTOMER ID NUMERIC (S) SALESMAN 0 NUMERIC (5) NUMERIC (5) DECIMAL (2) DATE Write the code to List the names of salesmen who are from the city of Paris. Use the editor to format your answer

Consider the following struCtu Orade database. selneman eutomer MUMERIO ($) VARCHAR 30) ARCHAR (161 DECMAL) PUSTOMERJDAERC() WOHAR () VARCHAR (S MMERC (3) SALESMANDMERIC (5) BALESMANJD NAME CUST NAME CITY COMMISSION cTY ORADE orders ORD NO PURCH AMT ORD DATE CUSTOMER ID NUMERIC (S) SALESMAN 0 NUMERIC (5) NUMERIC (5) DECIMAL (2) DATE Write the code to List the names of salesmen who are from the city of Paris. Use the editor to format your answer

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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Given the following relational schema of a database library (primary keys are underlined and foreign keys are preceded by #): Student(studentNumber, StudentName, studentAddress) Book(bookNumber, bookTitle, #authorNumber, #editorNumber, yearEdition) Author(authorNumber, authorName, authorAddress) Editor(editorNumber, editorName, editorAddress) Borrow(#studentNumber, #bookNumber, borrowDate, returnDate) Write the following queries in Relational Algebra: Find the details of students who borrowed the book titled ‘Database Management Systems’
Given the following relational schema of a database library (primary keys are underlined and foreign keys are preceded by #): Student(studentNumber, StudentName, studentAddress) Book(bookNumber, bookTitle, #authorNumber, #editorNumber, yearEdition) Author(authorNumber, authorName, authorAddress) Editor(editorNumber, editorName, editorAddress) Borrow(#studentNumber, #bookNumber, borrowDate, returnDate) Write the following queries in Relational Algebra: List the details (bookNumber, bookTitle) of books whose author’s name is ‘Ramakrishnan’
In a database, there are values a data element can take, and there are values it cannot take. In other words, data element values should be within correct ranges. For example, ages of employees should be between 18 and 80. Which one of the following database features ensures that? a) Security b) Data Integrity c) Data Sharing d) Concurrency Control e) Data Independence Which one/ones of the following uniquely distinguishes the tuples of a relation? a) primary key b) super key c) candidate key d) alternate key e) foreign key f) a, c, and e g) a, b, c, d, and e. h) a, b, c, and d. Which one(s) of the following may exist more than once for a relation? a) primary key b) super key c) candidate key d) alternate key e) foreign key f) a, b, and c g) b, c, and d h) b, c, d, and e h) a, b, c, and d. i) a, b, c, and e j) a, b, c, d, and e. In the…
The following information is stored in two relational database files:Employee Master FileSocial Security numberNameAddressDate hiredHourly wage rateMarital statusNumber of exemptionsWeekly Payroll FileSocial Security numberHours workedDeductionsBonusesRequireda. Bogey works in personnel and Bacall works in payroll. Prepare a database authorization table that you think is appropriate for Bogey and Bacall for these two files.b. Discuss any potential exposure if the right prevention devices are not in place or if Bogey and Bacall collude.
What are the four basic types of operations for a database application? a. Insert, Select, Update, and Delete b. Insert, Update, Delete, and Create c. Insert, Update, Delete, and Render d. Insert, Select, Update, and Render If stringa="Good Morning", what is the value of stringa[1:5]? a. "Good " b. "ood " c. "Good" d. "ood M" The instance that “a survey respondent in service occupation (x) is less likely to report income ” is an example of __________ . a. Missing completely at random. b. Missing at random. c. Missing not at random. d. None of the above.
Consider the relational database below, where the primary keys are underlined.employee (person-name, street, city)works (person-name, company-name, salary)company (company-name, city)manages (person-name, manager-name)Give a query for each of the following:a Give all managers in database a 10 percent raise.b Give managers in the database a 10 percent raise, unless the salary would be greaterthan $100,000. In such cases, give only 3 percent raise.c Delete all tuples in the works relation for employees of Small Bank Corporation
Given the following relational schema of a database library (primary keys are underlined and foreign keys are preceded by #): Student(student Number, StudentName, studentAddress) Book(bookNumber, bookTitle, #authorNumber, #editorNumber, yearEdition) Author(authorNumber, authorName, authorAddress) Editor(editorNumber, editorName, editorAddress) Borrow(#studentNumber, #bookNumber, borrowDate, returnDate) 1) List the books (bookNumber) that have never been borrowed.
Suppose that you are a manufacturer of product ABC, which is composed of parts A, B, and C. Each time a new product ABC is created, it must be added to the product inventory, using the PROD_QOH in a table named PRODUCT. Also, each time the product is created, the parts inventory, using PART_QOH in a table named PART, must be reduced by one each of parts A, B, and C. The sample database contents are shown in Table P10.1. Given the preceding information, answer Questions a through e. How many database requests can you identify for an inventory update for both PRODUCT and PART? Using SQL, write each database request you identified in Step a. Write the complete transaction(s). Write the transaction log, using Table 10.1 as your template. Using the transaction log you created in Step d, trace its use in database recovery.
Suppose that you are a manufacturer of product ABC, which is composed of parts A, B, and C. Each time a new product ABC is created, it must be added to the product inventory, using the PROD_QOH in a table named PRODUCT. Also, each time the product is created, the parts inventory, using PART_QOH in a table named PART, must be reduced by one each of parts A, B, and C. The sample database contents are shown in Table P10.1.Given the preceding information, answer Questions a through e.a. How many database requests can you identify for an inventory update for both PRODUCT and PART?b. Using SQL, write each database request you identified in Step a.c. Write the complete transaction(s).d. Write the transaction log, using Table 10.1 as your template.e. Using the transaction log you created in Step d, trace its use in database recovery.
Following on your BIG break to make a database for an… organization that organizes table tennis tournaments (also known as “Tourney”s) at their premises on behalf of clubs, you’ve written down the business rules as follows: One Match belongs to One Tourney, and not none. One Tourney has Many Matches, at least one and a maximum of 128. One Match takes place on One Table, and not none. One Table is used in Many Matches, and possibly none. One Match belongs to one Category, and not none. One Category appears in Many Matches, and possibly none and a max of 32. One Match involves Many Players, minimum 2 and maximum 4. One Player plays Many Matches, and possibly none. You have also been given a small sample of their records (which is not in the least in relational format), which may prove useful. It is below. Match Number Tourney Tourney Start Date Day Time Slot In Day Player Names(Team 1) Player Names(Team 2) Player IDs (Team 1) Player IDs(Team 2)…
Given the relational database shop defined in the script below; create database shop;use shop; create table users( id int null auto_increment, firstname varchar(255), lastname varchar(255) not null, primary key (id)); create table items( id int null auto_increment, name varchar(255), price float, primary key (id)); create table orders( id int null auto_increment, id_users int not null, id_items int not null, primary key (id), foreign key (id_users) references users(id), foreign key (id_items) references items(id)); write three SQL queries to answer the following questions 1.- All products(items) in the shop catalog; product code, name and price 2.- Products sold in the shop; product code, name and price and full name of buyer. 3.- Products in stock (not sold); product code, name and price
You are given the following database schema:Sailors(sid, sname, rating, age)Boats(bid, bname, color)Reserves(sid, bid, day)Consider the join on Sailors ▷◁ Reserves and assume that you have the following statistics andlimitations: * You have available 9 pages in main memory.* Sailors: 100000 tuples, 1000 pages; Boats: 2000 tuples, 10 pages; Reserves: 110000 tuples,550 pages 1. Calculate the I/O cost of this join using the Block Nested Loop algorithm?

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