In a forward recovery, the DBMS uses the log to undo any changes made to a database during a certain period, such as an hour.
Answer the following statement true (T) or false (F)
False
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Consider the following relations for a database that keeps track of student enrollment in courses and the books adopted for each course:
STUDENT (SSN, Name, Major, Bdate) COURSE (Course#, Quarter, Grade) ENROLL (SSN, Course#, Quarter, Grade) BOOK_ADOPTION (Course#, Quarter, Book_ISBN) TEXT (Book_ISBN, Book_Title, Publisher, Author) Specify the foreign keys for this schema, stating any assumptions you make.
________ results are maintained by humans rather than a computer, so the results might be fewer but more specific
A) Subject directory B) Search engine C) Web portal D) Metasearch engine
A(n) ____ object uses a highly repetitive or recursive pattern.
A. Mondrian B. fractal C. abstract D. Euclidean
FIGURE WD 1-1
In the accompanying figure, what kind of restrictions are being set?
A. None B. Formatting has been restricted to only selected styles C. Only select users are allowed to make editing changes D. All users are restricted from making any kind of changes to the document