By Thomas C. Hammergren
Facts warehousing is likely one of the most well liked enterprise subject matters, and there’s extra to realizing info warehousing applied sciences than you may imagine. discover the fundamentals of information warehousing and the way it allows facts mining and company intelligence with Data Warehousing For Dummies, 2d Edition.
Data is maybe your company’s most vital asset, so your facts warehouse may still serve your wishes. The absolutely up to date moment version of Data Warehousing For Dummies is helping , advance, enforce, and use info warehouses, and gives a sneak peek into their destiny. You’ll study to:
- Analyze top-down and bottom-up information warehouse designs
- Understand the constitution and applied sciences of knowledge warehouses, operational facts shops, and knowledge marts
- Choose your venture workforce and practice top improvement practices on your facts warehousing projects
- Implement an information warehouse, step-by-step, and contain end-users within the process
- Review and improve present info garage to make it serve your needs
- Comprehend OLAP, column-wise databases, assisted databases, and middleware
- Use information mining intelligently and locate what you need
- Make educated offerings approximately specialists and information warehousing products
Data Warehousing For Dummies, second Edition additionally indicates you the way to contain clients within the checking out method and achieve priceless suggestions, what it takes to effectively deal with a knowledge warehouse undertaking, and the way to inform in the event that your undertaking is heading in the right direction. You’ll locate it’s the main priceless resource of information at the topic!
Read or Download Data warehousing for dummies PDF
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Example text
Here are two more questions to consider: ✓ Does your current job more closely resemble Steve’s or Mary’s in how you’re able to get access to information you need? ✓ Based on how you answered the first question, would you rather have a job more like the other’s? Facilitating Communications with Data Warehousing A benefit of data warehousing that’s much less tangible than having information for better business decisions is that data warehousing often facilitates better communications across a company than what existed before the warehouse project began: ✓ The information technology (IT) organization — the organization that handles infrastructure (hardware and software platforms, networking, and communications, for example) — begins working more cooperatively with its customers in the business organizations.
Extraction programs are created either by hand (custom-coded) or by using specialized data warehousing products — ETL (extract, transform, and load) tools. You can build a successful data warehouse by spending adequate time on the first two steps in the preceding list (analyzing the need for a data warehouse and how you should use it), which makes the next two steps (designing and implementing the data warehouse to make it ready to use) much easier to perform. Interestingly, the analysis steps (determining the focus of the data warehouse and working closely with business users to figure out what information is important) are nearly identical to the steps for any other type of computer application.
Asking this type of question doesn’t have any real business value, however. Assuming that you receive an answer to the question, what can you do with that information to have a positive business effect? For some types of data, you can analyze, analyze, and analyze some more — and still find out little of value that could positively affect your business. Although you can put this data in your warehouse, you probably won’t get much for your trouble. Other types of data, though, have significant value unavailable until placed in the data warehouse.