Python datetime modules: In this article, we will see the Python datetime module. We will learn how to create current time, how to calculate the time gap and how to produce time difference?According to Python docs “The python datetime module supplies classes for manipulating dates and times in both simple and complex ways”. So,python datetime modules contains several classes. Let us discuss one by one. Python datetime Modules – The Datetime.datetime Let us discuss the useful methods of datetime.datetime class. …
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Big Data vs. Artificial Intelligence – Introduction: Big Data: The growth of the world is impulsive in all ways, likewise the data. Data size across the world is huge, so technically increase in the data constitute the name Big Data. The time of spread sheet is over, A google search, Passport scan, a barcode reading in supermarket, your online shopping history, An EKG reading, CCTV footage, A photo of a sandwich, a voice message, A tweet, all of this contains …
Data Visualization vs. Business Intelligence – Introduction: Data Visualization vs. Business Intelligence – Everyday data is piling up. Very large amount of Data. It’s very difficult to maintain and process these data. These data are in different formats and structure. Companies are coming up with different tools and software’s to process these data and to monetize from these data. Data Visualization: Let me explain this term in layman word, It is to tell story from your data. Anyone can understand …
Remember how bitcoins turned people into overnight millionaires. While the era fizzled as abruptly as it erupted, it is the underlying technology of bitcoins – Blockchain – that left a lasting impression. Blockchain is hailed as the best invention since the Internet, by many. It is believed to have the potential to change the world as we know it. It is already showing how the technology can disrupt industries, making them more secure, agile and fit for the digital era. …
Python Dictionary : A Python dictionary is a sequence of key/value or item pairs separated by commas. A Python dictionary is created by using curly braces ( { } ). Syntax to create empty dictionary. < variable-name > = {} Or < variable-name > = dict() Syntax to create Python dictionary with items <variable-name> = { key : value , key : value } The pair of key and value is called item, key and value are separated by colon ( : …
Pig Case Study : Problem Statement: To build a script which produces a report listing each Company & State and number of complaints raised by them. We have a data set of complaints (incidents or trouble tickets) of a software system raised by different companies. The details of the fields (i.e. data dictionary) of each record is in below format: Date received = dtr:chararray, Product = prd:chararray, Sub-product = sprd:chararray, Issue = iss:chararray, Sub-issue = siss:chararray, Company public response = …
Python for Loop Python For Loop – In programming, to repeat an action, loops are used. In Python programming for loop is used to iterate the sequences. In Python, sequences are like String, tuple lists etc. In this article, we will explore the for loop use cases with the interesting examples. This article contains the following topics. for loop with xrange() for loop with Sequences List comprehension Reading the file Nested for loop Python For Loop – for loop with …
What is Big Data? What size of Data is considered to be big and will be termed as Big Data? We have many relative assumptions for the term Big Data. It is possible that, the amount of data say 50 terabytes can be considered as Big Data for Start-up’s but it may not be Big Data for the companies like Google and Facebook. It is because they have infrastructure to store and process this vast amount of data. When data …
What is Data Science? Data Science is the art and science of extracting actionable insight from raw data. Put simply, Data Science is an umbrella term for techniques used when trying to extract insights and information from data. Data Science uses automated methods to analyze huge amount of data and extract knowledge from them in various forms either structured or unstructured. Data is growing faster than ever before and by the year 2020, about 1.7 megabytes of new information will be …
Hive Interview Questions: Hive Interview Questions : 1)Explain what is Hive? Hive is an ETL and Data warehousing tool developed on top of Hadoop Distributed File System (HDFS). Hive is an open-source-software that lets programmers analyze large data sets on Hadoop Cluster. It is a data warehouse framework for querying and analysis of data that is stored in HDFS. 2)Mention what are the different types of tables available in Hive? There are two types of tables available in Hive. Managed …