A DataFrame in Spark is a distributed collection of data with named columns. It’s similar to a table in a relational database or a data
MongoDB – Create and Insert Collection
This post aims to let you know how to add a record into a collection in MongoDB. Let’s create a “emp” collection (table) first. >
SparkSQL – Inserting and Loading Data
This post will cover how to work with tables, including how to create them, load data or insert values into them, and show the contents
SparkSQL – Creating and Dropping Tables
This tutorial will show you how to use sqlContext in Spark SQL to create and drop tables. Please review the previous sessions on “Spark” to
EMP and DEPT datasets for MongoDB
Since Oracle’s “EMP” and “DEPT” datasets are useful for practice, I’ve provided converted scripts for SQL Server and MySQL in previous articles. This tutorial will
MongoDB – Create Database And Collection
This post describes how to use the command prompt to connect to a MongoDB server and use CLI commands to display the available databases and
Big Data & SQL 