Computers and Technology, 04.07.2019 20:20 cbaughn11
Draw an er diagram for each of the following situations. on the diagram be sure to identify the cardinality, existence, and optionality (for subtypes) of each relationship.
1. a company has a number of employees. each employee may be assigned to one or more projects, or may not be assigned to a project. a project must have at least one employee assigned, and may have several employees assigned.
2. a university has a large number of courses in its catalog. each course may have one or more other courses as prerequisistes, or may have no prerequisites.
3. a college course may have one or more scheduled sections, or may not have a scheduled section.
4. a hospital patient has a patient history. each patient has one or more history records (we assume that the initial patient visit is always recorded as an instance of the history). each patient history record belongs to exactly one patient.
5. a video store may stock more than one copy of a given movie. it is also true that the store may not have a single copy of a paticular movie.
Answers: 1
Computers and Technology, 22.06.2019 11:40
Pthreads programming: create and terminate a thread write a c++ program that creates a thread. the main will display a message “hello world from the main”. the main will create a thread that will display a message “hello world from the thread” and then terminates with a call to pthread_exit()
Answers: 3
Computers and Technology, 22.06.2019 17:00
Aisha has finished working on a word processing document that contains 15 pages. she has added some special elements in the first three pages, page 9 and 10, and page 15 from the document. she wants to print only these pages to see how they look. which option is the correct way to represent (in the print dialog box) the pages that aisha wants to print
Answers: 3
Computers and Technology, 22.06.2019 23:00
In which part of a professional email should you try to be brief, but highly descriptive?
Answers: 1
Draw an er diagram for each of the following situations. on the diagram be sure to identify the card...
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