is the relationship between a weak entity type and its owner. Select one: a. associative entity b. identifying relationship O c. week link O d. link
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- Which statement is associated with two seperate entities. a) Attribute b) Entity Type c) Reflective Relationship d) RelationshipQ2- What is a composite entity, and when is it used?The "Title" attribute in "BOOK" Entity Type is considered as: Main Sub Annual ISBN Author Title Sal ВОOK O 1. Key Attribute O 2. Composite Attribute O 3. Multi-Valued Attribute O4 Derived Attribute The "SUPERVISES" Relationshin is considered ag
- When an attribute of one entity type references another entity type's attribute, this means that: O it is a derived attribute O weak entity type exists O a relationship exists O it means nothingA relationship between entity supertype and entity subtype is known as ___Entity Relationship Diagram of the business, as shown in the case. Completely and correctly specify all Entities, Relationships and Attributes Order: has one or many items; half by member half by anonymous member (no member number)Has: order number, each order item has total cost (with and without gst), number of store, cashier who took the order, member number (if provided), date on which the order was places, and, if the order is not picked up in-person, the date on which the order is shipped. Order-Item (one of the 1600 products):to identify: useorder number as well as a small “item sequence number” (which is unique within each order). product number, quantity ordered and the actial "unit price paid" If a valid member number is on the order, the system should use the product’s special “member price”, otherwise the product’s “regular price” is used. The average order includes 11 distinct order-items. Member (places 5 orders per month on avg):last name, given names, email…
- Explain entity sets.Assignment: Problem #7 from Chapter 4 of the textbook. The case study is United Helpers. With the use of Microsoft Visio, draw YOUR entity relationship diagram (ERD) using Crow's foot notation to indicate entities, relationships, optionalities, connectivities and cardinalities. In addition, be sure to include a heading on your ERD with a brief descriptive title, your name, and a date. It is suggest that you write out business rules but the rules do not need to be submitted. 7. How would you (graphically) identify each of the following ERM components in a Crow’s Foot notation? an entity the cardinality (0,N) a weak relationship a strong relationshipIn an ERD, entities do not have columns. Instead which of the following is used to describe the entity's characteristics? Group of answer choices attributes degrees instances relationships
- Based on Entity Relationship Diagram (ERD) below; a) Write the correct business rules for all entities. b) Write the suitable relationship name for (a) and (b). RESERVATION GUEST ROOM PK RSV_ID PK GUEST_ID RSV_DATE PK ROOM_ID GUEST_NAME ARRIVAL_DATE (b) ROOM_TYPE GUEST_PHONENO (a) DEPART_DATE ROOM_RATE GUEST_ADDRESS NO_OF_GUESTS FK1 RSV_ID NO_OF_ROOMS FK1 GUEST_IDQUESTION 2 in ERD, an Entity with a partial key is named: O Partial Entity O Strong Entity O Weak Entity O Dependent EntityThe entity type STUDENT has the following attributes: Student Name, Address, Phone, Age, Activity, and No of Years. Activity represents some campus-based student activity, and No of Years represents the number of years the student has engaged in this activity. A given student may engage in more than one activity. Draw an ERD for this situation. What attribute or attributes did you designate as the identifier for the STUDENT entity? Why?