CouchDB is a brand new breed of database for the web, geared to fulfill the desires of today’s dynamic net purposes. With this concise advent, you’ll find out how CouchDB’s uncomplicated version for storing, processing, and getting access to information makes it perfect for the kind of info and speedy reaction clients now call for out of your applications—and how effortless CouchDB is to establish, installation, continue, and scale.
The code-packed examples during this publication can assist you the best way to paintings with files, populate an easy database, reflect facts from one database to a different, and a number of alternative tasks.
- Install CouchDB on Linux, Mac OS X, home windows, or (if you want to) from the resource code
- Interact with info via CouchDB’s RESTful API, and use ordinary HTTP operations, equivalent to positioned, GET, put up, and DELETE
- Use Futon—CouchDB’s web-based interface— to regulate databases and records, and to configure replications
- Learn the right way to create, replace, and delete records in JSON structure, and the way to create and delete databases
- Work with layout records to get the formatting and indexing your program requires
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15 utilizing Futon dealing with Databases and records Configuring Replication Populating an easy Database developing Databases developing records Updating records Deleting records Deleting Databases 15 17 19 20 21 22 24 24 25 iii Common Operations HTTP Operations error HTTP Headers Request Headers reaction Headers HTTP URL Paths JSON files record constitution rfile kinds constitution and Consistency 25 26 27 28 28 29 29 31 32 32 34 34 four. layout files . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 growing layout files indicates perspectives View fundamentals Querying a View lessen features Querying View effects Lists iv | desk of Contents forty-one forty three forty six forty seven forty nine fifty three sixty five sixty six Preface creation while i used to be approximately 9 years outdated, I had an Acorn Electron, a house computing device constructed through Acorn Machines and one of many significant precursors to fashionable domestic computing. It was once tiny by way of today’s criteria, having simply 32K of RAM, a 2MHz CPU, and with the awesome skill to shop an important 360 Kb at the three inch Amstrad disks i used to be utilizing on the time. It wasn’t my first computing device; I minimize my the teeth at the Sinclair ZX81 and later the ZX Spectrum. regardless of these kind of barriers, I equipped quite a few diversified items of software program for myself, together with my first actual database for my moment maximum ardour, books. throughout the yeras, I’ve labored on many alternative database platforms, together with dB III+, Microsoft entry, Oracle, BRS, Filemaker, Omni 4D, and what I’m most likely most sensible identified for, MySQL. the basics of desirous to shop details and retrieve it in a short time are all attainable utilizing those instruments and simply as I did in 1983, I’ve equipped a few enjoyable and severe purposes in them all. For the main half, although, the database turned a tool—just one other software that grew to become a part of the toolkit for construction the appliance. Then i used to be brought to Apache CouchDB, and that i rediscovered the fervour I had whilst constructing functions at the Electron. development databases used to be enjoyable. they can be equipped quick, with no need to fret approximately drivers, languages, or certainly some of the complexities of querying and retrieving details. most significantly, for any database software, I didn’t need to fear approximately constructions or find out how to get the data in a dependent structure. should you learn this ebook, that’s the fervour i am hoping you get—the cognizance that storing and retrieving info might be enjoyable back with the aid of CouchDB. Conventions utilized in This e-book the subsequent typographical conventions are utilized in this ebook: Italic shows new phrases, URLs, e mail addresses, filenames, and dossier extensions. v Constant width Used for software listings, in addition to inside paragraphs to consult application components comparable to variable or functionality names, databases, facts kinds, setting variables, statements, and keyword phrases. consistent width daring exhibits instructions or different textual content that are meant to be typed actually by way of the person. consistent width italic indicates textual content that are supposed to get replaced with user-supplied values or by way of values made up our minds by means of context.