The First Cry of Atom

Wiley gave me another chance to write a book about Big Data technology. This was offered at the almost same time when I started to write Spark book that is introduced previously because they expected me to write something about Hadoop too. So this is a book about Hadoop especially... [Read More]

mysqldump is a useful tool for migration of database. This tool enables us to move a data into another database through human readable format, SQL. But as default mysqldump dumps all records in all tables in database. I wanted to use mysqldump as a tool to move only specified record... [Read More]

I searched several themes which available for Jekyll from yesterday. Indigo is the best and minimal one which fit my favor. If you want to try this design, please follow the instruction written in README. [Read More]

I updated the site powered by Jekyll from Octopress. [Read More]

The most famous library to connect PostgreSQL from Python might be psycopg2. psycopg2 is a simple and easy library for the people who want to manipulate SQL simply. The usage is basically pretty straightforward but I got stuck when I tried to a record into PostgreSQL via psycogpg2. Here I... [Read More]