Which statement is correct? a. A star schema has one large central dimension table which is connected

Question:

Which statement is correct?

a. A star schema has one large central dimension table which is connected to various smaller fact tables.

b. The dimension tables of a star schema contain the criteria for aggregating the measurement data and will typically be used as constraints to answer queries.

c. To speed up report generation and avoid time-consuming joins in a star schema, the dimension tables need to be normalized.

d. The dimension tables in a star schema are frequently updated.

Fantastic news! We've Found the answer you've been seeking!

Step by Step Answer:

Related Book For book-img-for-question

Principles Of Database Management The Practical Guide To Storing Managing And Analyzing Big And Small Data

ISBN: 9781107186125

1st Edition

Authors: Wilfried Lemahieu, Seppe Vanden Broucke, Bart Baesens

See More Books

Question Posted: Dec 16, 2023 03:51 AM

See More Questions

Planning is one of the most important management functions in any business. A front office managers first step in planning should involve determine the departments goals. Planning also includes...
Do some amendment and enhance the given research paper: Table of Content Abstract..3 Action Research.4 Research Methodology and Design...5 Literature Review: NoSQL Database7 Proposal.7 Iteration 1..8...
Managing Scope Changes Case Study Scope changes on a project can occur regardless of how well the project is planned or executed. Scope changes can be the result of something that was omitted during...
Consider the following. (a) Find aw s aw at (b) Find aw s w at w = x cos(yz), x = s, y = t, z =s - 2t aw aw by using the appropriate Chain Rule. (Enter your answers in terms of s and t.) s at aw s...
What is an ethical control system, and what are its key elements?
Suppose that the average cost function is given by C(x) = C(x)/x, where x is the number of items produced. Show that the marginal average cost function is given by C'(x) = xC'(x) = C(x) 2 x
You are a senior financial analyst with IBM in its capital budgeting division. IBM is considering expanding in Australia. The new facility would require an initial investment in fixed assets of 5...
Fontenot Corporation was organized in 2011 and began operations at the beginning of 2012. The company is involved in interior design consulting services. The following costs were incurred prior to...
Stewiacke Ltd. is currently considering a project with a four-year life that it believes may return the company to profitability. Stewiacke recently did a market survey at a cost of $100,000. The...
Discuss four approaches to deal with slowly changing dimensions in a data warehouse. Can any of these approaches be used to deal with rapidly changing dimensions?
What are surrogate keys? Why would you use them in a data warehouse instead of using the business keys from the operational systems?
Douglas Company borrows $80,000 on July 1 from the bank by signing a $80,000, 10%, one-year note payable. (a) Prepare the journal entry to record the proceeds of the note. (b) Prepare the journal...
What are company annual reports? A thorough report describing a company's activities over the past year. A way for a company to increase its stock price. A method for a company to track its...
In a DD model with 3 periods t=0,1,2. Each consumer is endowed with 1 potato at t=0, has probability 1/2 of becoming hungry at t=1 and probability 1/2 of becoming hungry at t=2. Consumer utility is...
Copy and paste a key passage from the source. Kraft Heinz's Micronutrient Campaign the company's signature humanitarian program and one of the key ways they support our work serves as a...
12:57 2. Knowledge Management Exam 202... DOCX-75 KB In 2002, after almost 50 years of performing, the Calgary Philharmonic Orchestra (CPO), Canada's fifth-largest, was seeking bankruptcy protection...
Describe in detail the process of preparing for a risk audit. What standard or regulatory framework do you think should be used as the basis of review? What documents should be created/made available...
Easy Nutrition completed the following selected transactions: Requirements 1. Record the transactions in Easy Nutritions journal. Round all amounts to the nearest dollar. Explanations are not...
Write a paper by answer the following question: Should Recycling Be Mandatory?
Suppose that each row of an nn array A consists of 1s and 0s such that, in any row of A, all the 1s come before any 0s in that row. Assuming A is already in memory, describe a method running in...
Given a database D of n cost-performance pairs (c, p), describe an algorithm for finding the maxima pairs of C in O(nlogn) time.
Suppose we are given two sorted search tables S and T, each with n entries (with S and T being implemented with arrays). Describe an O(log 2 n)-time algorithm for finding the k th smallest key in the...
Your friend Amber has approached you seeking advice concerning two investment opportunities that she is presently considering. Her classmate Simone has asked her for a loan of $500 to help establish...
Required Each of the following independent events requires a year-end adjusting entry. Show how each event and its related adjusting entry affect the accounting equation. Assume a December 31 closing...
Moody Corporation uses a job-order costing system with a plantwide predetermined overhead rate based on machine-hours. At the beginning of the year, the company made the following estimates:...

Which statement is correct? a. A star schema has one large central dimension table which is connected

Question:

Step by Step Answer:

Statement b The dimension tables of a star schema contain the criteria for aggregating the measureme...View the full answer

Principles Of Database Management The Practical Guide To Storing Managing And Analyzing Big And Small Data

Students also viewed these Computer science questions