Consider the following relational schema for a software development business It keeps track of their developers and the projects they are working on Note that FK indicates a foreign key that references another table Underlined attributes form the primary key for that table Developer (DID, fname, lname, favoriteLanguage) Assignment (DID, Pname, dateAssigned, hoursSpent) FK(DID) Developer (DID) FK(Pname) Project (Name) Project (Name, description, hoursRemaining, language) Write a relational algebra expression for each of the following Display the first name and last name of all the developers whose favorite language is Python ( G) Display the DID of all the developers who have not been assigned to a project ( G) Display for each project the name and description of the project, the last name of all the developers who are assigned to it, and the date they were assigned to this project ( G)

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Question: Consider the following relational schema for a software development business. It keeps track of their developers and the projects they are working on. Note that

Consider the following relational schema for a software development business. It keeps track of their developers and the projects they are working on. Note that FK indicates a foreign key that references another table. Underlined attributes form the primary key for that table.

Developer (DID, fname, lname, favoriteLanguage)
Assignment (DID, Pname, dateAssigned, hoursSpent)
- FK(DID) Developer (DID)
- FK(Pname) Project (Name)
Project (Name, description, hoursRemaining, language)

Write a relational algebra expression for each of the following:

Display the first name and last name of all the developers whose favorite language is Python. ( G)

Display the DID of all the developers who have not been assigned to a project. ( G)

Display for each project: the name and description of the project, the last name of all the developers who are assigned to it, and the date they were assigned to this project. ( G)

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