Arrays in Bash Scripts
An array is an data structure or a variable which can store multiple values.
Scala Class and Objects
Scala Classes are Blueprint for Creating Objects.They can Contain methods, values, variables ,types, objects, traits and Classes which are Collectively called Members.
How to Run SQL Query Using Bash Script and Command-Line?
While working as a developer, one needs to automate some of the existing SQL Queries using bash script without accessing the interactive MySQL prompt. In this blog post i will show the different ways to run sql queries using Bash Script.I will be using MySQL database in this Blog.
Analyze retail DB using Structured Query Language(SQL)
In this blog post we will load the retail data into MySQL instance and analyze it using Structured Query Language.SQL is one of the most popular languages among developers,data engineers,data scientists and DBAs.
Restful (REST) Web Services
REST stands for REpresentational State Transfer.It is web standards based architecture and uses HTTP Protocol for data communication. It revolves around resource where every component is a resource and a resource is accessed by a common interface using HTTP standard methods
What is Data Quality?
Managing Data quality is one of the important aspect in a IT company.Accurate,consistent and timely available quality data in the relational database that organization use are essential to the management of organization today.
What is Database Normalization?
Normalization is the process of successively reducing relations with anomalies to produce smaller, well-structured relations.This blog post contains tutorials for database normalizations and First Normal Form, Second Normal Form, Third Normal Form, BCNF and Fourth Normal Form
What is Slowly Changing Dimensions?
A Slowly Changing Dimension is a dimension that stores and manages both current and historical data over time in a data warehouse.
Running Hive Queries using Shell scripts
When working with Big data platform like Apache Hive, certain task such as data ingestion/data preparation task needs to be scheduled daily using shell/bash scripts so that downstream application can get the new data everyday.In this blog post we will load movies data into hive tables using shell scripts
What is Apache Pig? Architecture and Components
Apache Pig is a high level dataflow language for analyzing large data sets. The data flows in a pipeline step by step and data can be stored at any point in the pipeline
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