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For the B+-tree where M=3 and L=5 shown below, show how an insert of value 80 is handled. || 12 || 50 || / | / | 2 12 50 5 18 65 7 20 70 9 21 72 10 24 78
2. For the B+-tree where M=3 and L=5 shown below, show how an insert of value 77 is handled.
Use the method of splitting the node rather than redistributing between siblings. || 24 || 75 || / | / | / | || 10 || 16 || || 41 || 50 || || 84 || 90 || | / \ / | \ | \ / | | | | \ | | | 2 10 16 24 41 50 75 84 90 5 11 18 26 42 65 78 86 92 7 14 20 30 45 70 79 87 93 9 47 72 80 81
3. A B+-tree is to be stored on disk whose block size is 2048 bytes. The data records
to be stored are 50 bytes, and their key is 4 bytes. Determine the values for M and L for the B+-tree. Assume pointers are 4 bytes each.
4. For the problem above, how many levels are needed to store 10,000,000 records?
Describe open source and proprietary databases. What are some drawbacks and benefits of each type of database?
let A={a,b,c,d,e} and suppose R is an equivalence relation on A . Suppose R has two equivalence classes. also aRd ,bRc and eRd in R . WRITE the relation R as a set if ordered pairs
Suppose you are using quicksort to sort array A with 6 distinct elements a1, a2, ..., a6. Sketch portion of the decision tree which corresponds to th ordering a3
Acme Inc. is making next generation financial tracking program, and Alice has been provided the task of writing encryption component.
Class, do IT database designers necessary to understand data volumes and number of users of database in order to create an effective physical design?
A two dimensional array should be used to represent number of times the bug reached each tile on the floor. All cells of this array should be initialized to zero.
Using only the local data already supplied in FileSort, perform an insertion sort on the file pointed to by fd. Use lseeks for this; do not try to create any sort of array or list. An array-based version of insertion is supplied for your reference.
Illustrate how tree will expand (after inserting each Part#), and what the final tree would like. (b) Repeat item (a), but use a B-tree of order p = 4 instead of a B+-tree.
Multi-dimensional arrays could cost a lot of memory. Determine how much memory does it take to create an integer array of 3 dimensions,
Explain advantages and disadvantages of new algorithm compared with eager decision tree algorithm, and advantages and disadvantages of new algorithm compared with lazy kNN algorithm.
Give the two input nodes after the graph has been built from the command prompt.
Generalize the 2-3 algorithms for INSERT and DELETE to K-J trees, where non-leaf vertices have between K and J children for fixed integers K >=2, and J>= 2K-1.
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