By Steve Francia
What could ensue in case you optimized an information shop for the operations software builders really use? you'll arrive at MongoDB, the trustworthy document-oriented database. With this concise advisor, you are going to construct dependent database purposes with MongoDB and personal home page. Written via the manager strategies Architect at 10gen - the corporate that develops and helps this open resource database - this e-book takes you thru MongoDB fundamentals similar to queries, read-write operations, and management, after which dives into MapReduce, sharding, and different complicated issues. Get out of the relational database rut, and benefit from a high-performing approach optimized for operations and scale.
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What may occur should you optimized a knowledge shop for the operations program builders truly use? you'll arrive at MongoDB, the trustworthy document-oriented database. With this concise consultant, you will the right way to construct based database purposes with MongoDB and personal home page. Written by means of the manager strategies Architect at 10gen - the corporate that develops and helps this open resource database - this publication takes you thru MongoDB fundamentals akin to queries, read-write operations, and management, after which dives into MapReduce, sharding, and different complicated issues.
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Additional info for MongoDB and PHP: Document-Oriented Data for Web Developers
These include $gt, $lt, $gte, and $lte, which stand for greater than, less than, greater than or equal, and less than or equal. Let’s say you want all numbers under 15. Replacing the find in the script from earlier: $results = $db->numbers->find( array( 'num' => array( '$lt' => 15 ))); Notice that we used single quotes around $lt so that it is treated as a string rather than a variable. info Array ( [_id] => MongoId Object ( [$id] => 4e7b32174a18176795000000 ) [num] => 0 ) ... Array ( [_id] => MongoId Object ( [$id] => 4e7b32174a1817679500000e ) [num] => 14 ) Working with Arrays Just like ranges, MongoDB comes with a set of operators for working with arrays; these include $all, $in, $nin, and $size.
The additional benefit of expanding the total space through horizontal scaling makes it a very appealing technology. Using GridFS A typical use case for GridFS would be storage and retrieval of an avatar for a user. In a common web application and architecture, you would likely have a few web nodes, all of which would need to be able to store and serve from the same set of files. Historically, you may have used NFS for this task, and more than likely, you’ve been bitten a time or two for doing so.
MongoDB and PHP: Document-Oriented Data for Web Developers by Steve Francia