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Connecting MongoDB using IBM DataStage

Jul 25, 2019 6:09:06 AM / by Muthulakshmi P posted in Blog, NoSQL, XML, DataStage, EDI, Jar file, Java, MongoDB, Relational Database

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Introduction

MongoDB is an open-source document- oriented schema-less database system. It does not organize the data using rules of a classical relational data model. Unlike other relational databases where data is stored in columns and rows, MongoDB is built on the architecture of collections and documents. One collection holds different documents and functions. Data is stored in the form of JSON style documents. MongoDB supports dynamic queries on documents using a document based query language like SQL.

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Can Big Data replace an EDW?

Jul 23, 2019 10:02:06 AM / by Anand.K posted in Big Data, Blog, Cassandra, Data Lake, Data Staging, ELT, Enterprise Data Warehouse, ETL, Hadoop, Hive, Hybrid model, NoSQL, OLTP, RDBMS, Data Archiving, Data Cluster

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Overview

Data Warehousing has been the buzzword for the past two or three decades and big data is the new trend in technology. A question that often arises in our mind is, “Are they similar and will Big Data replace a Data Warehouse”, the reason being, both have similarities like holding data, used for reporting purposes and managed by electronic storage devices.  There is an underlying difference between the two, namely; Big Data Solution is a technology whereas Data Warehousing is an architectural concept in data computing.

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