By Bradley Holt
If you need to use CouchDB to help real-world purposes, you will have to create MapReduce perspectives that allow you to question this document-oriented database for significant info. With this brief and concise e-book, you are going to methods to create various MapReduce perspectives that can assist you question and mixture facts in CouchDB’s huge, allotted datasets.
You'll get step by step directions and plenty of pattern code to create and discover numerous MapReduce perspectives throughout the process the e-book, utilizing an instance database you build. To paintings with those assorted perspectives, you’ll how one can use the Futon internet management console and the cURL command line instrument that include CouchDB.
- Learn how the Map and decrease steps paintings independently and jointly to index your data
- Use the instance database to create a number of transitority perspectives in accordance with various criteria
- Convert your transitority perspectives to everlasting perspectives inside of a layout document
- Learn numerous innovations for querying the information inside of your views
- Limit the variety of effects back, pass a few effects, or opposite the order of the output
- Group your effects through unique keys or by means of elements of keys
Bradley Holt, co-founder of the inventive providers company chanced on Line, is an internet developer and entrepreneur ten years of Hypertext Preprocessor and MySQL adventure. He started utilizing CouchDB ahead of the discharge of model 1.0. Bradley is an lively member of the personal home page neighborhood, and will be reached at bradley-holt.com.
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