The conceptual data model is the set of concepts that A. Describes the structure of a database and the associated retrieval transactions. B. Describes the structure of a database and the associated retrieval and update instructions. C. Is the actual implementation of the database, using a commercial DBMS. D. Describes the structure of a database and the associated insert and update transactions.

Explain the concept of data redundancy and how it can lead to inconsistencies in a database, emphasizing the need for normalization.

You must create an ER model for Upwork before forward engineering the database in MySQL. A database design project typically begins with requirements analysis to identify the business rules, entities, and relationships to form an ERD, which is then converted into a database. Assumptions: - A client/freelancer can sign up and create an account via email. - A freelancer cannot be a client. - Clients can leave feedback on the freelancers. - The system should keep track of all bids for each project. - The total bid amount can be calculated by assuming an 8-hour workday. [(freelance hourly rate * total number of days * 8) = Bid Amount] Other functionality not mentioned in the assumptions section is out of scope. Hint: How to get started: - Writing down your design before implementing it in MySQL will help you better understand the relationships. - Examine the screenshots provided to learn how the website works. - Determine which entities are required and which may be required. - Record…

1. Create a database diagram that shows the relationships between the seven tables in the MyGuitarShop database. (The administrators table is not related to the other six tables.) 2. Design a database diagram for a database that stores information about the downloads that users make from a website. Each user must have an email address, first name, and last name. Each user can have one or more downloads. Each download must have a filename and download date/time. Each product can be related to one or more downloads. Each product must have a name.