Database Design and Management: The percent sign (%) and asterisk (*) symbols can be used with...
Database Design and Management:
The percent sign (%) and asterisk (*) symbols can be used with the LIKE comparison operator to create a search pattern.
True or False?
When translating an arc relationship to a physical design, you must turn the arc relationships into foreign keys. Assuming you are implementing an Exclusive Design, you must also create two Unique Key Constraints to ensure the Arc is implemented correctly.
True or False?
The explanation below is a User Defined integrity rule and must, therefore, be manually coded; the Database cannot enforce this rule automatically. A primary key must be unique, and no part of the primary key can be null.
True or False?
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Database Design and Management:
The percent sign (%) and asterisk (*) symbols can be used with...
Please help me answer these: In the relational database model, an entity consists of one and...
Please help me answer these: In the relational database model, an entity consists of one and only one entity instance (or record). A. True B. False 2. In the relational database model, the foreign key name does NOT have to be the same as the primary key name. A. True B. False 3. Logical relationships between tables (or entities) in the relational database model are created with primary and candidate keys. A. True B. False 4. In the relational database...
when you establish a relationship between a primary and foriegn key, the dbms can enforce integrity...
when you establish a relationship between a primary and foriegn key, the dbms can enforce integrity constraints? true or false what database key links one table to another? what data base function allows you to define the data your database is storing?
QUESTION 1 What is the most common relationship within a relational database? Select the best answer...
QUESTION 1 What is the most common relationship within a relational database? Select the best answer from the following. One-To-One relationship. o One-To-Many relationship. Many-To-Many relationship. Zero-To-Zero relationship. QUESTION 2 What is an "entity'? Select the best answer from the following. An entity, for our purposes, is the same as a table in the database. An entity represents one of the columns in an individual table. There are no entities in a relational database. Entities are only part of NoSQL...
Database design Part One (Conceptual Database Design) As a database developer, you have been asked to...
Database design
Part One (Conceptual Database Design) As a database developer, you have been asked to design a new database the operation of the new project within the Liverpool John Moores University (LJMU). LJMU i planning to deliver a number of professional training courses in Al. Each course is delivered by one member of staff at LJMU's Training Centre; each staff is allocated a staff number. The policy of LJMU is to record the start working date of each staff,...
This is questions of Accounting Information Systems 1) Fo a database. Each row in this spreadsheet...
This is questions of Accounting Information Systems
1) Fo a database. Each row in this spreadsheet represents a: ur Tet Industries tracks customer information using various Microsoft Excel spreadsheets stored in a. Field b. Record c. File d. Database 2) A d tables is a. What is the correct term for the database field in Table 1? latabase field in Table 1 that serves as a unique identifier in Table 2 and is used to link both of the a....
Using draw.io diagram tool, design a database schema for an application that tracks and manages students’...
Using draw.io diagram tool, design a database schema for an application that tracks and manages students’ applications for a university. You have complete freedom in how you want to design your database, but you need to justify your decisions. Make sure to create proper primary/foreign key relationships between your tables. All entities and attributes must be named using the underscore convention.
6. With respect to database systems, which of the following statement(s) is (are) true? a. The...
6. With respect to database systems, which of the following statement(s) is (are) true? a. The physical view of data is how people conceptually organize and understand the relationships among data items. b. The DML builds the data dictionary, creates the database, describes logical views for each user, and specifies security constraints. c. A record layout shows the items stored in a file, including the type of data stored and both the order and length of the data fields. d....
Design a database to keep data about college students, their academic advisors, the clubs they belong...
Design a database to keep data about college students, their academic advisors, the clubs they belong to, the moderators of the clubs, and the activities that the clubs sponsor. Assume each student is assigned to one academic advisor, but an advisor counsels many students. Advisors do not have to be faculty members. Each student can belong to any number of clubs, and the clubs can sponsor any number of activities. The club must have some student members in order to...
Due to your experience in designing the database for the "Legendary League" game, you have been...
Due to your experience in designing the database for the "Legendary League" game, you have been asked to design the ER diagram for a bigger database to manage the events for the "Legendary League" eSports Oceanic Championship (OC). The requirements are as follows: Registered teams compete in the OC. Each team has a name, and a number of team members. A team also maintains a rank throughout the OC, reflecting how well it is doing in the championship. Team members...
c) Write an ER Diagram for the following Library database. Identify all the Entities, Relationships and Attributes. Underline the primary keys and mark the different constraints. You can add an I att...
c) Write an ER Diagram for the following Library database. Identify all the Entities, Relationships and Attributes. Underline the primary keys and mark the different constraints. You can add an I attribute as a primary key for an entity to make t unique if necessary. Library has a number of branches in the city, each branch having a name, address and librarian. Books have title, authors and publisher. A book can have multiple authors but a single publisher. Note that same...
QUESTION 1 What is the most common relationship within a relational database? Select the best answer from the following. One-To-One relationship. o One-To-Many relationship. Many-To-Many relationship. Zero-To-Zero relationship. QUESTION 2 What is an "entity'? Select the best answer from the following. An entity, for our purposes, is the same as a table in the database. An entity represents one of the columns in an individual table. There are no entities in a relational database. Entities are only part of NoSQL...
Database design
Part One (Conceptual Database Design) As a database developer, you have been asked to design a new database the operation of the new project within the Liverpool John Moores University (LJMU). LJMU i planning to deliver a number of professional training courses in Al. Each course is delivered by one member of staff at LJMU's Training Centre; each staff is allocated a staff number. The policy of LJMU is to record the start working date of each staff,...
This is questions of Accounting Information Systems
1) Fo a database. Each row in this spreadsheet represents a: ur Tet Industries tracks customer information using various Microsoft Excel spreadsheets stored in a. Field b. Record c. File d. Database 2) A d tables is a. What is the correct term for the database field in Table 1? latabase field in Table 1 that serves as a unique identifier in Table 2 and is used to link both of the a....
6. With respect to database systems, which of the following statement(s) is (are) true? a. The physical view of data is how people conceptually organize and understand the relationships among data items. b. The DML builds the data dictionary, creates the database, describes logical views for each user, and specifies security constraints. c. A record layout shows the items stored in a file, including the type of data stored and both the order and length of the data fields. d....
c) Write an ER Diagram for the following Library database. Identify all the Entities, Relationships and Attributes. Underline the primary keys and mark the different constraints. You can add an I attribute as a primary key for an entity to make t unique if necessary. Library has a number of branches in the city, each branch having a name, address and librarian. Books have title, authors and publisher. A book can have multiple authors but a single publisher. Note that same...
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