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Minimal set of words which acts as tech guide ,documented for following purpose like kick starting stuff easier , reference the emphasised feature or basic intro about the stuff..!!!

Apache Spark SQL : Running SQL Queries on DataFrame using Scala

Apache Spark is a Big data processing engine which has components like "Spark SQL", "Spark Mlib" & "Spark streaming", we generally uses Apache spark for processing big data which process in-memory, batch wise and real time, general use case is to query large data

AWS S3 with Spring Boot: Uploading and downloading file to Buckets

So if are reading this Article means your a developer and your familiar with spring boot or AWS S3, just for SEO purpose i will brief both,so you can skip the introduction part and jump into coding part.As a developer Spring boot has become my vital Framework and

Exception handling in spring boot REST APIs

As we know spring boot community is growing and lot of legacy spring project is getting migrated towards spring boot, and always when we start and application we always search for better error handling ways, usually when we are java developer we tend to use try catch block to throw

Spring Boot Command Line Runner Example.

Do want to look cool, and pretend to be some hacker just on terminal printing some random this,Then you can use this command line runner :-P, jokes apart, Usually when we need to work on some Shell Script which is very complicated or you perform certain repeated task clearing

Spring Boot Shell : CLI app to execute your commands

A CLI command line program which take string argument from keyboard and executes the program based on input, Assume you are write an migration tool you have to copy contents of your folder to another, or you have remove temp files, convert one file format to another, or resize the

Getting Started with spring boot scheduler `@Scheduled`.

A lot of times we need to run couple CORN or scheduled scripts, if your spring boot developer without having much hassle we can start Spring boot application and create task or run a scheduled jobs, so lets begin with small proof of concept to start Spring Scheduler and running

Explaining SQL Joins and types of joins.

So when we are dealing with SQL we join two tables with primary and foreign key relationship, which combine rows from respective table.Joins are very integral part of SQL. The four types of join we use are: 1. Inner Join 2. Left Join 3. Right Join 4. Full Join

Flutter List view: populating the data using List view

When in Mobile apps list view is crucial, in this article lets see how to build flutter list view using ListView widget and use it in our application, just for information sake Flutter is framework built by google to build multi platform application like Android, Web and IOS. Flutter follows

Step by step instruction to install Flutter on UBUNTU 18.04 LTS.

If your reading this article which means you what is flutter and you want to try flutter on hobby project or learn mobile development using flutter for its simplicity. to begin with flutter first step is to install flutter. so this article help to install flutter and run development. Lets

Flutter's Jargon.

As we know google launched its hybrid app building framework which gained popularity with in an fraction of time due to its simplicity and native touch and feel of the developed app, Flutter supports Android, IOS and also PWA still in beta. soon after we start the flutter we need