Provide the notation (drawing) for each of the below items Weak entity Optional One cardinality A...
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Provide the notation (drawing) for each of the below items
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Weak entity
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Optional One cardinality
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A supertype relationship in which the subtype can belong to 2 subtypes at the same time and it does not need to belong to any of the subtypes
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Provide the notation (drawing) for each of the below
items
Weak entity
Optional One cardinality
A...
This is symbolized by a circle over a single line in an entity relationship diagram. It...
This is symbolized by a circle over a single line in an entity relationship diagram. It signifies that the supertype does NOT have to be one of the specified subtypes. Partial completeness Total completeness System completeness Associative completeness A supertype entity can contain as many as ____ subtype entities. 10 1 100 no defined limit When you set up an Entity Relationship Diagram, and have a many-to-many relationship, this entity is created to avoid problems inherent to a many-to-many relationship....
Create an Entity-Relationship Diagram (ERD). In the ERD include the following:
Create an Entity-Relationship Diagram (ERD).In the ERD include the following: entities primary keys for all entities attributes - use "good" names for attributes, use only single-valued attributes relationships - use Crow's foot or UML notation; name relationships that could be ambiguous cardinality - minimum (optional/mandatory) and maximum (one or many) on both ends of the relationship - use reasonable assumptions if there is insufficient information in the descriptionStudent/Course registration system for a universityStudents have a unique identification number, first name, middle initial, last name, year...
2.Which of the following statements are true? (Check all that apply.) A.In an REA diagram, each...
2.Which of the following statements are true? (Check all that apply.) A.In an REA diagram, each event is linked to at least one resource. B.In an REA diagram, each event is linked to at least one other event. C.In an REA diagram, each relationship is linked to at least one resource. D.In an REA diagram, each relationship is linked to at least one agent. 2.Which of the following statements is true? A.The maximum cardinality is used to indicate whether the...
Crow's Foor Notation
Create a Crow’s Foot Notation Entity Relationship Diagram (ERD) to support the following business operations:The local city youth league needs a database system to help track children who sign up to play soccer. Data needs to be kept on each team, the children who will play on each team, and their parents. Also, data needs to be kept on the coaches for each team and matches.You need to store theTeam IDTeam namePlayer IDPlayer first name,Player last name, andPlayer age of...
Database 1. Draw an Entity-Relationship diagram(including cardinality ratio and participa- tion constraint) to represent the following...
Database
1. Draw an Entity-Relationship diagram(including cardinality ratio and participa- tion constraint) to represent the following application: A DEPARTMENT has a number of TEACHERS and each TEACHER is affil- iated only with one DEPARTMENT; A STUDENT has only one TEACHER as an advisor, but a TEACHER can advise many STUDENT; on the other hand, TEACHER instructs many STUDENTS, and a STUDENT has a number of instructors. Different AGENCIES support different TEACHERS for various PROJECTS. (15 points) A trucking company is...
For this DATABASE homework assignment you will create an Entity Relationship model for a business case...
For this DATABASE homework assignment you will create an Entity Relationship model for a business case and then convert the model to a set of relations. Read through the following business case for the “Drum Corps International” Create an Entity relationship model with the necessary entities, attributes, identifiers and relationships to capture the data requirements. All relationships should be labeled with verb phrases. Use UML notation for this work. Relationship lines should not cross. ...
Project: Relational Modeling Note: This project must be unique in its design (E-R diagram) and implementation...
Project: Relational Modeling Note: This project must be unique in its design (E-R diagram) and implementation (SQL queries). You are not to copy or use any part of a database project that was previously submitted or appears on the Web, in a textbook, or otherwise made available via an external source. Contact your instructor if you have any questions regarding this requirement. Deliverables for Part 1: (1) Project Description. Provide an overview of your project identifying the major components as...
Draw an EER diagram for school gyms using standard Chen's notation and following requirement Each fitness...
Draw an EER diagram for school gyms using standard Chen's notation and following requirement Each fitness CENTER is identified by a CenterID, a name (e.g. XX Building) and campus. Every CENTER has one or more ROOMS that can be booked for sessions (either group or personal training). As in last time, rooms are noted by their maximum capacity. Within each center, the room number will be unique -- though this time, recognize that Room 116, for example, could exist in...
Question 4.20 points) Match the statements below with the items below: a.) Economic entity assumption b.)...
Question 4.20 points) Match the statements below with the items below: a.) Economic entity assumption b.) Time period Assumption c.) Full Disclosure principle d.) Cost principle e.) Revenue recognition principle f.) Monetary unit assumption g.)Going concern assumption h.) Matching principle i.) Consistency j.) Reliability - A company uses the same accounting methods from year to year. ____ The information is free of error and bias. The economic life of a business can be subdivided into months, quarters or a year....
help please Match the statements below with the items below: a.) Economic entity assumption b.) Time...
help please
Match the statements below with the items below: a.) Economic entity assumption b.) Time period Assumption c.) Full Disclosure principle d.) Cost principle e.) Revenue recognition principle e.) Rey Principle Principle 1.) Monetary unit assumption 8.) Going concern assumption h.) Matching principle 1.) Consistency j.) Reliability - A company uses the same accounting methods from year to year. The information is free of error and bias. The economic life of a business can be subdivided into months, quarters...
Database
1. Draw an Entity-Relationship diagram(including cardinality ratio and participa- tion constraint) to represent the following application: A DEPARTMENT has a number of TEACHERS and each TEACHER is affil- iated only with one DEPARTMENT; A STUDENT has only one TEACHER as an advisor, but a TEACHER can advise many STUDENT; on the other hand, TEACHER instructs many STUDENTS, and a STUDENT has a number of instructors. Different AGENCIES support different TEACHERS for various PROJECTS. (15 points) A trucking company is...
Question 4.20 points) Match the statements below with the items below: a.) Economic entity assumption b.) Time period Assumption c.) Full Disclosure principle d.) Cost principle e.) Revenue recognition principle f.) Monetary unit assumption g.)Going concern assumption h.) Matching principle i.) Consistency j.) Reliability - A company uses the same accounting methods from year to year. ____ The information is free of error and bias. The economic life of a business can be subdivided into months, quarters or a year....
help please
Match the statements below with the items below: a.) Economic entity assumption b.) Time period Assumption c.) Full Disclosure principle d.) Cost principle e.) Revenue recognition principle e.) Rey Principle Principle 1.) Monetary unit assumption 8.) Going concern assumption h.) Matching principle 1.) Consistency j.) Reliability - A company uses the same accounting methods from year to year. The information is free of error and bias. The economic life of a business can be subdivided into months, quarters...
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