Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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- Need help with solutions to questions 7 to 9.arrow_forwardq9arrow_forwardDraw the DFD for a distance education university. The enrolment process works as follows: Students send in an application form containing their personal details, and their desired course The university checks that the course is available and that the student has necessary academic qualifications. If the course is available the student is enrolled in the course, and the university confirms the enrolment by sending a confirmation letter to the student. If the course is unavailable the student is sent a rejection letter. Step 1 Read the problem description carefully looking for: * People / organizations / things that supply information to or use information from the system => external entities (EE) * Actions/doing words/verbs => Processes (P) * Movement/exchange of information/data between external entities to processes, and processes to processes => data flows (DF) * Store/record information/data => data stores(DS) Output : * A student (EE) sends in an application…arrow_forward
- Didn't return any results, therefore the code is incorrect.arrow_forwardTask 4: The InstantRide User Satisfaction team is a core team for InstantRide, and they focus on increasing the customer satisfaction. They want to learn the travel time for each ride in the system. You need to return the USER_ID, and the TRAVEL_TIME column which is calculated using the TIMEDIFF function on the TRAVEL_END_TIME and the TRAVEL_START_TIME.arrow_forwardTask 7: List the square footage, owner number, owner last name, and owner first name for each property managed by the StayWell-Columbia City office. Task 8: Repeat Task 7, but this time include only those properties with three bedrooms. Task 9: List the office number, address, and monthly rent for properties whose owners live in Washington State or own two-bedroom properties. Task 10: List the office number, address, and monthly rent for properties whose owners live in Washington State and own a two-bedroom property.arrow_forward
- Task 7: The StayWell marketing team considers sending small gifts to all residents and owners. To decrease the postal costs, they will send gifts to owners in batches to their corresponding offices. Similarly, the marketing team will send the gifts in groups to the residents living in the same property. Therefore, you will need to provide them the number of gifts for each StayWell office and number of gifts for each property. The column headers for the first table should be OFFICE_NUM and GIFTS, the column headers for the second table should be PROPERTY_ID and GIFTS. Provide the StayWell team the number of gifts for each office. Provide the StayWell team the number of gifts for each residence.arrow_forwardPlease help solve this test. Tyarrow_forwardes, 13 seconds. Question Completion Status: A Moving to another question will save this response. Question 2 is a picture which shows the information that is created, stored, and used by a business system. Model Physical design Logical design ERD W Type here to search DELL 關arrow_forward
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