What are surrogate keys? Why would you use them in a data warehouse instead of using the

Question:

What are surrogate keys? Why would you use them in a data warehouse instead of using the business keys from the operational systems?

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

Compare and itemize the differences between: Object module and executable module b) Synchronous and Asynchronous signals c) Symmetric and asymmetric use of multiprocessors in parallel systems
Introduction Data warehouses are used to contain data used to support decision making. Data accumulated by a business is a valuable resource and often contains information about factors that affect...
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...
Instructions: Read the footnotes included in the financial statements for H & B Bakery, then answer the following questions. *The exact requirement of this question, is to read the statements below...
What are some choices that individuals can make when ethical conflicts arise?
Show that, for any constant k, d [f(x)] k || f'(x) k
Calculate NewWorlds price-earnings ratio, before and after the takeover described in Example 22.2.
(True or False) State whether the following assertions are true or false. If false, explain why. 1. Depreciation of general property, plant, and equipment is reported as an expense in the...
1.XYZ Corp. just paid an annual dividend of $3 per share on its common stock. This dividend is expected to grow at a 10 percent annual rate for two years, after which it is expected to grow at a 6...
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...
Discuss and contrast each of the following data warehouse schemas: Star schema; Snowflake schema; Fact constellation.
A condensed income statement for Electronic Arts and a partially completed vertical analysis follow. Required: 1. Complete the vertical analysis by computing each line item (a)-(d) as a percentage of...
Given the following process control data for a quality attribute (three samples of size 400 each): Sample Defectives #1 36 #2 32 #3 52 If the process proportion of defectives is unknown, what are the...
Links to an external site. Should the salary of employees who work remotely be renegotiated? What strategies should companies that decide to use home working take into account? How is this type of...
There are two producers of ice cream in Princeton, Ben and Jerry. The demand function for ice cream in this market is P = 10 + Q. How marginal cost is constant ?
1 . The legal interest rate charged by the bank for housing loans is 1 2 . 0 0 % , and the actual annual interest rate is 1 2 . 5 5 % . According to this information, the interest is likely to be...
With the introduction of the liberalization of the Motor Tariff, discuss what insurers should consider when costing the policy insurance.
Assume Cline & Nichols, the accounting firm, advises Derbyshire Seafood that its financial statement must be changed to conform to GAAP. At December 31, 2012, Derbyshires accounts include the...
Prove that if Σ an is absolutely convergent, then a. an
Although keys in a map are distinct, the binary search algorithm can be applied in a more general setting in which an array stores possibly duplicative elements in nondecreasing order. Consider the...
Describe how to perform a removal from a hash table that uses linear probing to resolve collisions where we do not use a special marker to represent deleted elements. That is, we must rearrange the...
Consider the goal of adding entry (k,v) to a map only if there does not yet exist some other entry with key k. For a map M (without null values), this might be accomplished as follows. if (M.get(k)...
Swifty Corporation had the following assets and liabilities on the dates indicated. December 31 Total Assets Total Liabilities 2021 $469,000 $216,000 2022 $549,000 $266,000 2023 $679,000 $366,000...
explain the difference between the growth of a savings account earning simple interest and the growth of a savings account earning compound interest.?
Watts and Lyon are forming a partnership. Watts invests $35,000 and yon invests $65,000. The partners agree that Watts will work one-fourth of the total time devoted to the partnership and Lyon will...

What are surrogate keys? Why would you use them in a data warehouse instead of using the

Question:

Step by Step Answer:

Surrogate keys are unique identifiers assigned to rows in a database table typically by the data warehouse rather than relying on natural or business ...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