Design a small part of the EERD (mini-world) for the Student entity type that illustrates all...
Design a small part of the EERD (mini-world) for the Student entity type that illustrates all the specializations (with attributes) for that entity type
Homework Answers
EERD for Student
StudentId is the Primary key of Student entity SuperType and Graduate and UnderGraduate are subTypes.
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Design a small part of the EERD (mini-world) for the Student
entity type that illustrates all...
6. The entity type STUDENT has the following attributes: Studen Name, Address, Phone, Age, Activity, and...
6. The entity type STUDENT has the following attributes: Studen Name, Address, Phone, Age, Activity, and No of Years. Activity represents some campus-based su- dent activity, whereas No_of Years represents the number of years the student has engaged in this activity. A given stu- deni may engage in more than one activity. Draw an ERD for this situation.
Exercise III (30 pts): Industrial Database design and querying. Restaurant ordering world is an interesting example...
Exercise III (30 pts): Industrial Database design and querying. Restaurant ordering world is an interesting example of industrial application for database. This exercise is concerned with modeling of the database of Zomato application for online ordering food. Propose a logical E/R diagram for the data set of this application. Make sure to indicate all cardinality constraints. The E/R diagram should not contain redundant entity sets, relationships, or attributes. Also, use relationships whenever appropriate. b- Write the query of the search...
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,...
The Green Revolution (see the Mini-Case "Malthus and the Green Revolution") was based in part on extensive experimentation. The following data illustrates the relationship between nitrogen fe...
The Green Revolution (see the Mini-Case "Malthus and the Green Revolution") was based in part on extensive experimentation. The following data illustrates the relationship between nitrogen fertilizer (in pounds of nitrogen) and the output of a particular type of wheat (in bushels). Each observation is based on one acre of land and all other relevant inputs to production (such as water, labor, and capital) are held constant. The fertilizer levels are 20, 40, 60, 80, 100, 120, 140, and 160,...
The Green Revolution (see the Mini-Case “ Malthus and the Green Revolution”) was based in part...
The Green Revolution (see the Mini-Case “ Malthus and the Green Revolution”) was based in part on the extensive experimentation. The following data illustrates the relationship between nitrogen fertilizer (in pounds of nitrogen) and the output of a particular type of wheat (in bushels). Each observation is based on one acre of land and all other relevant inputs to productions (such as water, labor, and capital) are held constant. The fertilizer levels are 20, 40, 60, 80, 100, 120, 140,...
South of Fifth Copy Boutique is a small office supplies/office services store that sells statione...
in detailed ERD not the basic diagram.
South of Fifth Copy Boutique is a small office supplies/office services store that sells stationery and mailing supplies, such as envelopes, paper boxes, pens, tape, etc. It also has a two printers, a scanner, and two copy machines that customers can use on a first-come first-serve basis, or reserve them in advance in 15 minute blocks of time. The owner is also a general manager and runs the operations, and employs one part-time...
Henry's Bookstore Database Henry's Bookstore is a small company with four locations in the city. Henry...
Henry's Bookstore Database Henry's Bookstore is a small company with four locations in the city. Henry has struggled with MS Excel mainly because he was trying to use spreadsheet software as a database, when in fact he should have been using a database. Requirements Create all of the entities needed for the Physical ERD Specify the columns/attributes needed in each entity along with the data type and size of each attribute. Specify the Primary Key(s) and Foreign Key(s) for the...
Identify all entity types, attributes, relationship types and their degrees in the following case Hence draw...
Identify all entity types, attributes, relationship types and their degrees in the following case Hence draw an entity-relationship diagram An organization makes many models of cars where a model is characterized by a name and a suffix (such as GL or XL which indicates the degree of luxury) and an engine size. Each model is made up from many parts and each part may be used in the manufacture of more than one model. Each part has a description and...
Q3: You have been hired to design a database for prescriptions for RX pharmacies and your...
Q3: You have been hired to design a database for prescriptions for RX pharmacies and your first job now is to design an ER model for this database using the following description of that world. i. patients are identified by their SSN and have other attributes as names, addresses, and ages. ii. Doctors are identified by their SSN and have other attributes as names, specialty, and years of experience. iii. Each pharmaceutical company is identified by name and has a...
You are helping design part of an employee database for XYZ Inc, that links employees to...
You are helping design part of an employee database for XYZ Inc, that links employees to their earned educational degrees and you are tasked with drawing the Entity Relationship Diagram (ERD) in Crow’s Foot notation. Entity: EMPLOYEE, EDUCATION, and BRIDGE. Business Rules: An employee can have one or more educational degrees (BS, MS, MBA, BA…) Each education degree is associated to one or more employees (more than one employee may have their MBA, BS…) This is a many-to-many relationship between...
6. The entity type STUDENT has the following attributes: Studen Name, Address, Phone, Age, Activity, and No of Years. Activity represents some campus-based su- dent activity, whereas No_of Years represents the number of years the student has engaged in this activity. A given stu- deni may engage in more than one activity. Draw an ERD for this situation.
Exercise III (30 pts): Industrial Database design and querying. Restaurant ordering world is an interesting example of industrial application for database. This exercise is concerned with modeling of the database of Zomato application for online ordering food. Propose a logical E/R diagram for the data set of this application. Make sure to indicate all cardinality constraints. The E/R diagram should not contain redundant entity sets, relationships, or attributes. Also, use relationships whenever appropriate. b- Write the query of the search...
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,...
The Green Revolution (see the Mini-Case "Malthus and the Green Revolution") was based in part on extensive experimentation. The following data illustrates the relationship between nitrogen fertilizer (in pounds of nitrogen) and the output of a particular type of wheat (in bushels). Each observation is based on one acre of land and all other relevant inputs to production (such as water, labor, and capital) are held constant. The fertilizer levels are 20, 40, 60, 80, 100, 120, 140, and 160,...
in detailed ERD not the basic diagram.
South of Fifth Copy Boutique is a small office supplies/office services store that sells stationery and mailing supplies, such as envelopes, paper boxes, pens, tape, etc. It also has a two printers, a scanner, and two copy machines that customers can use on a first-come first-serve basis, or reserve them in advance in 15 minute blocks of time. The owner is also a general manager and runs the operations, and employs one part-time...
Identify all entity types, attributes, relationship types and their degrees in the following case Hence draw an entity-relationship diagram An organization makes many models of cars where a model is characterized by a name and a suffix (such as GL or XL which indicates the degree of luxury) and an engine size. Each model is made up from many parts and each part may be used in the manufacture of more than one model. Each part has a description and...
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