4.- Suppose you have an object made up of two w-bit integers, x and y, ie. z=xy. Show why x y does not make a good hash code for your object, where is the exclusive or (xor) operator. Give an example of a large set of objects that would all have the same hash code.

Q: Explain why the nested-loops join method (see Section 15.5.1) will fail miserably on a…

A: The nested-loops join method works by iterating through each row of one table and comparing it to…

Q: Let's pretend you have access to a database including the x, y locations and names of local…

A: The above question is solved in step 2 and it's explanation.

Q: Questions Answer these questions in the text box provided for the assignment 1. What indexes already…

A: 1. For this we can use the following query as SHOW INDEXES FROM film.  2. EXPLAIN is a PostgreSQL…

Q: Why are narrowing or widening conversions never safe or are safe, support your claim with examples?

A: Widening conversions: The smaller variable is assign to the larger variable in a widening…

Q: When is it better to use a dense index than a sparse index? Your answer has to be explained.

A: According to the information given:- WE have to define dense index is better than a sparse index…

Q: Let's pretend you have access to a database including the names and x, y locations of a variety of…

A: Indexing system: A document indexing system is a method of organizing digital documents so they can…

Q: Task1: Create Tables, indexes and constraints. At least one index (hash-based or tree-based) and one…

A: USE  SQLShасkDemоGОСREАTE  VIEW  EmрlоyeeFullInfоАSSELEСT  EMР.[BusinessEntityID]…

Q: What is collision resolution in hash tables, and why is it important in dictionary implementation?

A: In hash tables, collision resolution is a critical concept that addresses what happens when two or…

Q: State some differences between non-clustered and clustured indexes.

A: An index is a key built from one or more columns in the data base that speeds up fetching row from…

Q: When it comes to data structures and algorithms, what are the real-world applications of hashing or…

A: Let's understand step by step :   Real-world applications of Hashing : 1. Password Checking : In…

Q: Explain “Shift folding in the hashing” in detail.

A: Increased customer satisfaction  which can ultimately result in increased revenue and profitability…

Q: Write a detailed note about Hashing. (Hash table, collision, collision detection techniques,…

A: Hashing is a crucial concept in computer science that enables efficient data manipulation and…

Q: What is your one-sentence explanation of the concept known as "clustering"? How does it make the…

A: Clustering is a fundamental concept in data mining and machine learning that involves grouping…

Q: What is the difference between a clustered index and a sparse index? What are the benefits of using…

A: A clustered index and a sparse index are two different types of indexes used in database management…

Fundamentals of blockchaining

In a business network, the tracking assets and the process of recording transactions are facilitated by the shared immutable ledger called a blockchain. Assets are of two types they are tangible and intangible. The tangible assets are land, house, cash, etc. The intangible assets are copyrights, branding, properties patterns, intellectual property, etc. On a blockchain network, anything that has a value can be tracked and it can be traded.