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Understanding Map-Reduce with Examples

In my previous article – “Fools guide to Big Data” – we have discussed about the origin of Bigdata and the need of big data analytics. We have also noted that Big Data is data that is too large, complex and dynamic for any conventional data tools (such as RDBMS) to compute, store, manage and analyze within a practical timeframe. In the next few articles, we will familiarize ourselves with the tools and techniques for processing Bigdata.
Published 1 week ago under Big Data

Enterprise Data Warehouse Data Reconciliation Methodology

An enterprise data warehouse often fetches records from several disparate systems and store them centrally in an enterprise-wide warehouse. But what is the guarantee that the quality of data will not degrade in the process of centralization?
Published 3 weeks ago under Data Warehouse Design Pattern

Top 50 DWBI Interview Questions with Answers - Part 3

Continuation to our collection of Data Warehouse Conceptual Questions.
Published 3 weeks ago under Dimensional Model

Top 50 DWBI Interview Questions with Answers - Part 2

This article is the continuation of the article "Top 50 DWBI Interview Questions with Answers"
Published 3 weeks ago under Dimensional Model

SAP HANA Information Models

In this article we will see how to design Information Models in SAP HANA Database. So first of all we will create a Package and then we will model Attribute, Analytic and Calculation Views.
Published 3 weeks ago under SAP HANA

Log File Analysis Using Hadoop & Hive- PHP Error Log

In this article we will learn how to perform quick analysis on Unstructured data using Hadoop & Hive. In this case we have a huge PHP Error Log file. What we want here is to parse the log file and get meaningful analytics from the error log. For example we want to understand which webpages are encountering the frequent PHP Errors, types of PHP Issue encountered (Warning, Notice, Error etc.). So lets see how easy it is, to get the answers to our questions, when we have HADOOP & HIVE in our toolbox.
Published 1 month ago under Big Data Analytics

Top 50 SAP Business Objects Data Services (BODS) Interview Questions with Answers

Learn the answers of some critical questions commonly asked during SAP BO Data Services interview.
Published 1 month ago under SAP Data Services

Data Services Metadata Query Part 3

This article is a continuation of the previous topic related to Data Services Metadata Query. Let us explore more into the Data Services Repository Metadata.
Published 1 month ago under SAP Data Services

Data Services Metadata Query Part 2

This article is a continuation of the previous topic related to Data Services Metadata Query. Let us explore more into the Data Services Repository Metadata.
Published 1 month ago under SAP Data Services
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