Start Discovering Solved Questions and Your Course Assignments
TextBooks Included
Active Tutors
Asked Questions
Answered Questions
consider the data entries in the linear hashing index for exercise 1091 show an extendible hashing index with the same
suppose that you have a file with 10000 pages and that you have three buffer pages answer the following questions for
suppose that you just finished inserting several records into a heap file and now you want to sort those records assume
consider a disk with an average seek time of 10ms average rotational delay of 5ms and a transfer time of 1ms for a 4k
consider the refinement to the external sort algorithm that produces runs of length 2b on average where b is the number
briefly answer the following questions1 consider the three basic techniques iteration indexing and partitioning and the
answer the following questions about linear hashing1 how does linear hashing provide an average-case search cost of
consider the extendible hashing index shown in figure 1014 answer the following questions about this index1 what can
consider the linear hashing index shown in figure 1015 assume that we split whenever an overflow page is created answer
minibase has a nice query optimizer visualization tool that lets you see how a query is optimized try initializing the
1 what is the goal of query optimization why is it important2 describe the advantages of pipelining3 give an example in
consider processing the following sql projection queryselect distinct etitle eename from executives eyou are given the
describe a linear-time in the size of the set of fds where the size of each fd is the number of attributes involved
give an algorithm for testing whether a relation scheme is in bcnf the algorithm should be polynomial in the size of
consider the following bcnf relations which describe departments in a company and employeesyou are told that the
give brief answers to the following questions1 what is a transaction in what ways is it different from an ordinary
1 explain the intuition behind the two rules in the bell-lapadula model for mandatory access control2 give an example
you are the dba for the veryfine toy company and you create a relation called employees with fields ename dept and
consider the following relationthere is a clustered index on eid and an unclustered index on age1 which factors would
minibase provides a tool called designview for doing database design using fds it lets you check whether a relation is
suppose that a dbms recognizes increment which increments an integervalued object by 1 and decrement as actions in
briefly answer the following questions1 how is checkpointing done in aries2 checkpointing can also be done as follows
write the c code for a function that receives four double numbers the function should calculate the average of the four
write the c code for a function that prompts the user to enter a character and then stores the character in a char
in this exercise you create a program that calculates the average of three test scores the program should contain three