Notes on all things data and code

Mockito VerifyNoMoreInteractions and Unverified Interactions 25 April 2021

External tables on parquet files - Invalid/missing columns 29 January 2019

Debugging spark applications on EMR 29 December 2018

Presto on Amazon EMR 28 December 2018

Athena JDBC driver error 01 November 2018

add_months behavior in Hive and Spark vs Oracle 13 August 2018

AWS S3 Copying empty success file 30 April 2018

Neteza timestamp functions 30 April 2018

Hive dynamic partitioning - MSCK repair 30 April 2018

Hive timestamp parsing and nulls 30 April 2018

Airflow bastion ssh config 30 April 2018

Tradeking to Morningstar data conversion - Python. 25 November 2017

apache spark intro notes 20 November 2017

SQL Gotchas 20 November 2017

Apache spark is better integrated with AWS 20 November 2017

AWS Solutions Architect Associate 24 April 2017

Athena Query error 25 February 2017

AWS Athena notes 25 February 2017

Oracle database partition manager using PL/SQL 22 December 2016