Tag: aws

AWS Redshift @ Freshers.in

Aggregate values into an array for a group of rows in Redshift using ARRAY_AGG()

Amazon Redshift, a robust data warehousing solution, offers an indispensable tool for this purpose – the ARRAY_AGG() function. In this…

AWS Redshift @ Freshers.in

Analyzing data trends with Amazon Redshift’s LEAD() function

Data analysis often involves examining how values change over time or comparing current data points with subsequent ones. Amazon Redshift…

bigquery redshift snowflake @ Freshers.in

Data segmentation with Amazon Redshift’s NTILE(n) Function

Data segmentation is a critical aspect of data analysis, and Amazon Redshift offers a powerful tool to accomplish this task…

AWS Redshift @ Freshers.in

Exploring data percentiles with Amazon redshift’s PERCENT_RANK() function

Amazon Redshift, a powerful data warehousing solution, offers a variety of analytical functions to help you gain insights into your…

aws logo @ Freshers.in

AWS : Transferring files from Amazon S3 to an external SFTP server using AWS Transfer Family

AWS Transfer Family is a fully managed service that enables the transfer of files over SFTP, FTPS, and FTP directly…

Automating AWS EC2 Instance Lifecycle with Lambda and CloudFormation: A Step-by-Step Guide

One of the most powerful features of Amazon Web Services (AWS) is the ability to automate operational tasks. In this…

AWS EMR @Freshers.in

EMR’s Add Steps API – An Overview

Amazon EMR’s Add Steps API is a part of Amazon EMR that allows you to add steps to a running…

AWS Glue @ Freshers.in

AWS Glue : Handling Errors and Retries in AWS Glue

AWS Glue is a fully managed ETL service that simplifies and automates data processing tasks. While AWS Glue is designed…

AWS Redshift @ Freshers.in

Redshift : Redshift Unload getting the file as filename appended with 000 – how to get as actual filename.

Unfortunately, Redshift’s UNLOAD command appends a part number (like 000) to the output file names by default, and there’s no…

AWS Redshift @ Freshers.in

Redshift : How to check table exists in Redshift using query ?

To check if a table exists in Amazon Redshift using a query, you can use the following SQL statement: SELECT…