Sunil Aadithya - Actionboard

ETL Process using DuckDB to Clickhouse

By Sunil Aadithya in duckdb on 22 Mar 2025

The classic ETL process involves extracting data from the source, storing it in raw format in bucket storage, and then sequentially processing the files before loading them into an analytical database. The transformation of the raw data and loading it into ClickHouse previously took 45 to 60 minutes for 60…

Rails Advisory Locks

By Sunil Aadithya in advisory-lock on 14 Aug 2024

How to use Advisory Lock in rails using redis…

ActiveRecord generate models dynamically

By Sunil Aadithya in activerecord on 10 Jun 2024

To generate a new table in rails we always use rails generate model, There is also an another way to create models dynamically.…

Generate large volume of PDF files using wicked pdf Gem

By Sunil Aadithya in wicked_pdf on 31 May 2024

Generate PDF using wicked_pdf in rails…

Parse large excel files in Ruby on Rails

By Sunil Aadithya in ruby on 29 May 2024

Parse and import data from large excel file in Ruby on Rails…