April 2013
Beginner
1020 pages
31h 19m
English
Content preview from Excel 2013: The Missing ManualBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Chapter 28. Analyzing XML and Web Data
An ordinary Excel workbook stores a bunch of information, and uses Excel tools (like formulas and charts) to analyze it. However, a great deal of the world’s business information isn’t stored in Excel files. Instead, it sits inside databases—organized catalogs of information managed by high-powered computer software.
Typical mid-size (or bigger) companies store product catalogs, customer lists, and purchase orders in databases. When they need to change this information (or just take a look at it), they use a program that talks to the database. Databases are extremely fast, secure, and durable. They’re the best place to put mission-critical information.
At first glance, this approach (storing big volumes of information in a database) seems to cut Excel out of the loop. However, Excel’s greatest strength isn’t storing information, it’s analyzing it. In fact, Excel is the perfect tool for analyzing information, no matter where it comes from. Your company might track orders using a custom application that dumps its results into a database. If you want to find out what all the numbers amount to and make a prediction about your company’s future, you can pull that info out of a database (using a process called querying), and then start charting away. In other words, your Excel workbook copies information stored in the database so you can put that data under the microscope. Best of all, you can refresh your workbook any time to get the latest information ...
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