Give examples of INSERT and DELETE operations that violate foreign-key restrictions.

Q: Describe Hashed file organization?

A: Ans:-  Hash File Organization uses the computation of hash function on some fields of the records.…

Q: When do you employ the direct approach of preventing deadlock?

A: Introduction: A condition known as deadlock occurs when a process or group of processes are unable…

Q: You are working with a file organisation scheme that is based on a hash function. When a collision…

A: Answer: a. Open Address

Q: What does the Big O category mean in terms of the execution time of the database? If there is only…

A: Big O is the top limit that is the most stringent when it comes to functions' worst-case temporal…

Q: What is the insert anomaly, update anomaly, and delete anomaly computer?

A: Intro Computer bug: There is no such thing as a flawless operating system or piece of software;…

Q: d. Suppose that the file is not ordered by the key field Ssn and we want to construct a secondary…

A: As per our guidelines we are supposed to answer only one question. Kindly repost other questions as…

Q: What is the use of a hash function? A. to erase data B. to calculate and return the index of…

A: A function that converts a given big phone number to a small practical integer value.

Q: Which of the following statement characterizes a Hash function? A.   Digests cannot be reversed to…

A: The correct answer along with the explanation is given below.

Q: is one of the advantages of separate chaining over open addressing. Space used is less O Deletion is…

A: Separate chaining and open addressing are methods for handling collisions in has tables.    In Open…

Q: Can a shared key be used to encrypt an AES key? Justify your answerHash function is compared to…

A: Advancement in Encryption Standard: The United States government selected the Advanced Encryption…

Q: The phantom phenomenon could go unnoticed if the next key value isn't locked when a lookup, insert,…

A: Introduction: Phenomenon of the Phantom When numerous transactions occur concurrently in an…

Q: Q4. Suppose we have the following relations: R(A,B,C) and S(D,E,F). Assume that R uses 500 blocks on…

A: The answer is given below::--

Q: What are the causes of bucket overflow in a hash file organization? What can be done to reduce the…

A: The causes of bucket overflow are: Our approximation of the number of records that the relation…

Q: Open Addressing in Hash Files refers to using a second hash function  True  False   QUESTION 6 A…

A: The given statement are: Open Addressing in Hash Files refers to using a second hash function A…

Q: How does a hash file organization's bucket overflow occur and what are the reasons of this…

A: Introduction: Overflowing buckets may happen for a variety of reasons: * Inadequate buckets: The…

Q: a) Why we prefer the undo tablespace instead of backup segment. Justify your answer with logical…

A: Actually, database is a used to stores the data.

Q: The data item written by a committed transaction should be immediately stored on the disk. O True O…

A: According to the question on the database so many operation you can done. But so many operation you…

Q: What are the consequences of making the wrong indexing decision?

A: Introduction: The technique entails indexing economic data into a single measure or comparing it to…

Q: A straightforward technique of avoiding deadlock is to avoid the occurrence of..............

A: Here Is The Answer

Q: Consider a file with a secondary dense index structure on a non-ordering key field where 120,000…

A: Given that, Number of records= 120000 Disk block size= 2048 bytes Length of record size= 150 bytes

Q: Arrangement and make sure no error and run smoothly by using Phyton Software. Implement all the…

A: Program Plan: Define insert() function that inserts the word into dictionary. Define find()…

Q: 1- Answer the following questions: a. What is an index on a file of records? b. Why do we need…

A: File is the container of the information or data.

Q: 16. An algorithm of the order O(c") runs faster than a one of the order O(n!), where n is size o…

A: Answer in step2

Q: Insert the records with the keys 80, 53, 26, 17, 62, 18, 35, 51 into a hash table of size 11. For…

A: The solution is given below-

Q: How do you read, delete, or search a list of user id and passwords using a BST (Binary Search Tree)?

A: Binary Search Tree is a one-site binary tree data structure with the accompanying elements: The…

Q: Define the term Recursive foreign key?

A: The recursive foreign key is the key that refers back to the same table that is the foreign key is…

Q: yte chunks are th warp-around. d in parallel, but lock must be ss may involve lock accesses

A:

Q: Provide some example schedules to illustrate how the phantom phenomena might not be noticed if…

A: Schedule In the next key locking approach, every index search, insert, or deletion must utilise only…

Q: a. Horizontal fragmentation uses what symbol for reconstruction? b. Vertical fragmentation uses…

A: a) Reconstruction of horizontal fragmentation can be performed using UNION operation on fragments.…

Q: rom a list of participants’ ids, find which id is missing from the list. The participant ids sorted…

A: divide and conquer algorithm also known as Binary Search.  In this method elements are in order( in…

Q: 3. What is the hash table based on to determine the storage address of an element? O A The ordinal…

A: Please find the answer below :

Q: Explain the difference between internal and external fragmentation with two examples. Use…

A: Whenever a process is loaded or removed from the physical memory block, it creates a small hole in…

Q: Explain the Fragmentation transparency?

A: What is  Fragmentation transparency? There are two type of fragmentation are possible vertical and…

Q: In the given Btree below, what is the final Btree after deleting 23 using the Inorder successor?

A: B tree is a multi level indexing tree. At each level it contain key and data pointer and that data…

Q: In Perl language Inserting data into a flat-file database and amounts to simply tacking the new data…

A: The answer is given in the below step

Q: Suppose a file with 65536 records is organized using multi-level indexing as the file is ordered on…

A: We need to answer:

Q: Can you conceive of circumstances in which utilising default values would increase data integrity…

A: Intro Default values: Default values are used to avoid errors where there is no entry. Default…

Q: In multiple-granularity locking, what is the difference between implicit andexplicit locking?

A: Answer: The multiple-granularity locking protocol ensures serializability by using various lock…

Q: Using linear hashing to insert the given values in the order provided with the hash function hi(K) =…

A: For hashing the above key by giving the key will hash to same value i.e to 0 .The average number of…

Q: 7a) A file organization where files are not stored in any particular order is considered a: A)…

A: 7A) Heap File Organization   7B) Multivalued index   7C) Hashing Algorithm

Q: We have a database file with ten million pages (N = 10,000,000 pages), and we want to sort it using…

A: External sorting is important; DBMS may dedicate part of buffer pool for sorting. External merge…

Q: What are the advantage of hash over checksum.

A: Hash function and checksum function both return a worth which can't be turned around.

Q: Using an example of a program using java or python, as you like, describe how dictionary attack can…

A: We need to answer - Using an example of a program using java or python, as you like, describe how…

Q: What are the consequences of making the wrong indexing choices?

A: Indexing: Indexing is one of the approaches used to optimize a database's speed by minimizing the…

Q: In Python, how do we delete a key in a dictionary? Use the example dictionary below: d = {'a':11,…

A: Given: Given a dictionary in python.   To Do: We need to explain how we can delete a key in…