Draw the ER/EER model for the given scenario. Manufacturer have unique name, an address, and a phone number. Products have a product_id, a name and price. Products may be classified into electronics and grocery. Electronic products have description, type attributes. Groceries have fssai_number, date_of manufacture, date_of_expiry. Each product is made by one manufacturer, and different manufacturers may produce different products.. Customers are identified by their unique social security number. They have email addresses, and physical addresses. Several customers may live at the same (physical) address, but we assume that no two customers have the same email address. An order has a unique order number, and a date. An order is placed by one customer. For each order, there are one or more products ordered, and there is a quantity for each product on the order

Q: Explain why an index is only effective when an attribute's values cover a suitable range of values.…

A: using a variable index with an extensive range of values An index in computing is a table or other…

Q: These attributes are additional dimension table attributes of previous product sales company. Postal…

A:

Q: What is the generic term for an attribute and how is it used in a relational model, if applicable?

A: Given: Each type of relationship can have its own set of relationship attributes. Attributes are…

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A: This query can be defined in such a way that it will first be part of the ticket_sales_fact table…

Q: 19. Draw the query tree for the SQL statement below, then draw the optimized heuristic tree. PID is…

A:

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A: Functional dependencies are... ProjectTitle, EmpeName -> HoursWork ManagerName -> ManagerPhone…

Q: Split the list into tables such that each has only one theme. Create appropriate ID columns. Use a…

A: Given: Split the list into tables such that each has only one theme. Create appropriate ID columns.…

Q: utput restaurant relationship diagram / restaurant adjacency

A: It is defined as a Entity Relationship Diagram type of flowchart that illustrates how “entities”…

Q: Create an ER model related to the following entities and relationships: Department, Student,…

A: The Diagram of the ER model is attached here with the answer. Please refer to step 2.

Q: Use the ER Diagram shown on Figure 1 to answer question 9: 9. According to the ER diagram on Figure…

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Q: Given the following Staff2 table, please write a SQL statement to find the superno who supervised 4…

A: To find the superno where COUNT(superno) is greater than or equal to 4.

Q: Based on the diagram. 30.Display the name of the passengers whose tickets include only one flight.

A: The above question is solved in step 2 :-

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A: SELECT query:In SQL, the SELECT statement is used to retrieve data from a database. It specifies…

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A: The answer for the given question is as follows.

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A: the below is relational schema for above given ER diagram

Q: WHAT IS THE ERD AND Relational Diagram ?

A: this is defined as -

Q: Your university runs many hundreds of courses each semester and needs to keep track of key…

A: the code is given below:-