By Shashank Tiwari

A hands-on consultant to leveraging NoSQL databases
NoSQL databases are an effective and robust software for storing and manipulating enormous amounts of knowledge. so much NoSQL databases scale good as info grows. furthermore, they can be malleable and versatile adequate to deal with semi-structured and sparse info units. This accomplished hands-on advisor provides basic thoughts and functional options for buying you prepared to exploit NoSQL databases. specialist writer Shashank Tiwari starts with a invaluable creation just about NoSQL, explains its features and average makes use of, and appears at the place it suits within the program stack. distinct insights assist you pick out which NoSQL options are most sensible for fixing your particular facts garage needs.
Professional NoSQL: * Demystifies the techniques that relate to NoSQL databases, together with column-family orientated shops, key/value databases, and record databases.* Delves into fitting and configuring a few NoSQL items and the Hadoop relations of products.* Explains methods of storing, getting access to, and querying info in NoSQL databases via examples that use MongoDB, HBase, Cassandra, Redis, CouchDB, Google App Engine Datastore and more.* appears to be like at structure and internals.* presents instructions for optimum utilization, functionality tuning, and scalable configurations.* offers a couple of instruments and utilities in relation to NoSQL, allotted systems, and scalable processing, together with Hive, Pig, RRDtool, Nagios, and extra.

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C:\\books\\python' Modules can be imported using the module name within the package name. ") 'C:\\books\\python' Modules can be imported by importing the modules specifically from the package. ") 'C:\\books\\python' NOTE: Python includes a reload(module) function that reloads a module. This can be extremely useful during development if you need to update a module and reload it without terminating your program. However, objects created before the module is reloaded are not updated, so you must be careful in handling those objects.

Return x*x ... >>> print square(3) 9 NOTE: Functions can be treated as any other Python object. In addition to being called, they can be assigned as a value to a list or dictionary, passed as an argument, returned as a value, and so on. The following code shows an example of using the lambda operator to assign an anonymous function to a variable: >>>bigger = lambda a, b : a > b >>>print bigger(1,2) False >>>print bigger(2,1) True Python Objects, Modules, Classes, and Functions Namespaces and Scoping Scoping in Python revolves around the concept of namespaces.

The argument m can be a specific assignment, a dictionary of variable values, or a keyword list. The encoding method takes only encoding such as utf-8, utf-16, iso-8859-1, and ascii as its single argument and returns a string encoded in that format. Strings can be converted to unicode by several different methods. The decode method returns a unicode form of the string. NOTE: The ASCII encoding allows only for characters up to 128. If your string includes characters that are above that range, you will need to translate those characters before encoding the string to ASCII.

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