Starting out with Visual C# (4th Edition)
4th Edition
ISBN: 9780134382609
Author: Tony Gaddis
Publisher: PEARSON
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Chapter 11.2, Problem 11.4CP
Explanation of Solution
a.
- • A group of structured data is called as database.
- • A database is a colle...
Explanation of Solution
b.
Table:
- • A table includes rows and columns...
Explanation of Solution
c.
Row:
- • A row includes the complete information or data of a single item or product...
Explanation of Solution
d.
Column:
- • The data stored in a row is divided into different columns...
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The following four tables form part of a library database:
• Book (isbn, title, author, genre, price)
• Copy (copyId, isbn)
• Loan (userId, copyId, loanDate, dueDate)
• User (userId, name, address, email)
Where:
• Book contains details of books and isbn is the primary key• Copy contains details of individual copies of books and copyId is the primary key• Loan contains details of loans and (userId, copyId, loanDate) forms the primary key • User contains details of library users and userId is the primary key
3.1 Identify the primary in the above schema.
3.2 Identify the foreign keys in the above schema.
3.3 Draw an Entity relationship model (ER-model) for the above schema, including:
• all attributes• correct notation for primary and foreign keys
• relationships• multiplicities
3.4 Draw sample tables for the above relations, ensuring relational integrity rules are met.
3.5 Explain the Entity Integrity constraint with reference to the Book relation.
An attribute in the context of a relational
database may be defined as:
A Something about which data is held.
B A column of a table.
C A row in a table.
D A key field of a table.
The concentration of a database programmer on information distinguishes them from other programmers. I would like to hear some examples of the topics you are describing.
Chapter 11 Solutions
Starting out with Visual C# (4th Edition)
Ch. 11.1 - Prob. 11.1CPCh. 11.1 - Why do most businesses use a DBMS to store their...Ch. 11.1 - When developing a C# application that uses a DBMS...Ch. 11.2 - Prob. 11.4CPCh. 11.2 - Prob. 11.5CPCh. 11.2 - What is the purpose of a primary key?Ch. 11.2 - Prob. 11.7CPCh. 11.2 - If a particular column is not allowed to be null,...Ch. 11.3 - List each of the .NET components that allow an...Ch. 11.3 - Prob. 11.10CP
Ch. 11.3 - What component is used to connect interface...Ch. 11.4 - Prob. 11.12CPCh. 11.4 - List the components that are automatically created...Ch. 11.4 - Prob. 11.14CPCh. 11.4 - What kind of information is displayed in the Data...Ch. 11.5 - How can you create a form that shows the columns...Ch. 11.5 - Prob. 11.17CPCh. 11.5 - Prob. 11.18CPCh. 11.6 - Prob. 11.19CPCh. 11.6 - When you create a Details view, what determines...Ch. 11.6 - Prob. 11.21CPCh. 11.6 - Prob. 11.22CPCh. 11.7 - In SQL, what is the purpose of the Select...Ch. 11.7 - What are the instructions for the DBMS to carry...Ch. 11.7 - How are the relational operators used in SQL...Ch. 11.7 - Prob. 11.26CPCh. 11.7 - Prob. 11.27CPCh. 11.7 - Prob. 11.28CPCh. 11.7 - Prob. 11.29CPCh. 11.7 - In an SQL statement, with what symbol does a query...Ch. 11 - Prob. 1MCCh. 11 - Prob. 2MCCh. 11 - A __________ holds a collection of related data...Ch. 11 - A __________ is a complete set of information...Ch. 11 - A(n) __________ holds an individual piece of...Ch. 11 - A __________ is a unique column value that can be...Ch. 11 - A(n) __________ is a column that contains unique...Ch. 11 - A __________ is a source of data with which the...Ch. 11 - A __________ connects to a data source and can...Ch. 11 - Prob. 10MCCh. 11 - A __________ is a component that can connect user...Ch. 11 - Prob. 12MCCh. 11 - A __________ can display an entire database table...Ch. 11 - A __________ is a set of individual controls that...Ch. 11 - Prob. 15MCCh. 11 - Prob. 16MCCh. 11 - Prob. 17MCCh. 11 - Prob. 18MCCh. 11 - __________, which stands for __________, is a...Ch. 11 - __________ are instructions for the DBMS to carry...Ch. 11 - In SQL, you use the __________ to retrieve the...Ch. 11 - A(n) __________ is an SQL statement that is stored...Ch. 11 - The __________ describes the contents of a...Ch. 11 - Prob. 1TFCh. 11 - The DBMS works directly with the data and sends...Ch. 11 - The data that is stored in a database is organized...Ch. 11 - Each column in a table must have a name.Ch. 11 - When you create a database table, the data types...Ch. 11 - When working with the data in a database table,...Ch. 11 - If a column in a database table contains no data,...Ch. 11 - An application works directly with a database,...Ch. 11 - Rather than showing multiple rows at once, a...Ch. 11 - Prob. 10TFCh. 11 - String comparisons in SQL are case sensitive.Ch. 11 - Prob. 1SACh. 11 - Briefly describe the layered nature of an...Ch. 11 - What is the data that is stored in a row of a...Ch. 11 - Are the data types used when creating a database...Ch. 11 - How do you create a primary key for a table with...Ch. 11 - Prob. 6SACh. 11 - Instead of working with the database directly,...Ch. 11 - What control can be used to display an entire...Ch. 11 - Prob. 9SACh. 11 - In SQL, what statement do you use to retrieve...Ch. 11 - Prob. 11SACh. 11 - Prob. 1AWCh. 11 - Write a Select statement that returns all the...Ch. 11 - Write a Select statement that returns only the...Ch. 11 - Write a Select statement that returns the...Ch. 11 - Write a Select statement that returns the...Ch. 11 - Write a Select statement that returns all the...Ch. 11 - Write a Select statement that returns the...Ch. 11 - Write a Select statement that returns the...Ch. 11 - Personnel Database Use Visual Studio to create a...
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Similar questions
- Access path A database table is composed of records and fields hold data. Data is stored in records. A field is a part of a record and contains a single piece of data for the subject of the record. The access path for finding the list of books is AUTHOR: AuthorID, Lname BOOKAUTHOR: AuthorID, ISBN BOOKS: Pubdate, ISBNarrow_forwardSQL DDL corresponding to this schema (i.e. the CREATE TABLE statements Database Schema:branch ( branch_name, branch_city, assets )customer ( ID, customer_name, customer_street, customer_city )loan ( loan_number, branch_name, amount )borrower ( ID, loan_number )account ( account_number, branch_name, balance )depositor ( ID, account_number )arrow_forwardExplain the different types of simple data.arrow_forward
- SQL stands for Structured Query Language and may alternatively be pronounced as See-Qwell. It was designed to be used with relational database management systems (RDBMS). SQL is a database language used for a variety of database-related tasks, including database creation/deletion, data retrieval/modification, and so on. Data manipulation in SQL is accomplished via the use of queries.arrow_forwardThe attributes of the entities are represented as Lin the Relational Data Model. Select one: a.content b.data c.columns d.linesarrow_forwardQuestion: In the context of databases, what does the acronym SQL stand for? a) Structured Question Language b) Simple Query Language c) Standard Query Language d) Sequential Query Languagearrow_forward
- (a) List all employees. Relational Algebra(RA): Tuple Relational Calculus(TRC): Domain Relational Calculus(DRC): (b) List all details of employees who are female. Relational Algebra(RA): Tuple Relational Calculus(TRC): Domain Relational Calculus(DRC):arrow_forwardBriefly discuss the three stages of database designarrow_forwardA well constructed relational database table has four properties.arrow_forward
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