How should data be stored on a disk to maximise efficiency? Is there a vacancy on flight 243? Could a relation be stored as a sequential file? How many times should a user be allowed to mistype a password before the conversation is terminated? How can the PROJECT operation (of the relational model) be implemented? Identify the user (enduser, programmer of application software, database administrator, and designer of database management system software) who would be most concerned with the following scenarios: How data could be most efficiently stored on a disk. If there is a vacancy on Flight 243. How a relation could be stored as a sequential file. How many times a user should be allowed to mistype a password before a conversation is terminated. How the PROJECT operation (of the relational model) can be implemented. Explain why each identified user is most applicable to each scenario and how you came to your conclusions. Fully state and justify any choices, assumptions or claims that you make using the suggested Learning Resources for this Week and/or your own research.
Delivering a high-quality product at a reasonable price is not enough anymore.
That’s why we have developed 5 beneficial guarantees that will make your experience with our service enjoyable, easy, and safe.
You have to be 100% sure of the quality of your product to give a money-back guarantee. This describes us perfectly. Make sure that this guarantee is totally transparent.Read more
Each paper is composed from scratch, according to your instructions. It is then checked by our plagiarism-detection software. There is no gap where plagiarism could squeeze in.Read more
Thanks to our free revisions, there is no way for you to be unsatisfied. We will work on your paper until you are completely happy with the result.Read more
Your email is safe, as we store it according to international data protection rules. Your bank details are secure, as we use only reliable payment systems.Read more
By sending us your money, you buy the service we provide. Check out our terms and conditions if you prefer business talks to be laid out in official language.Read more