To give some context, I am from a small start up (4 team members) and we work in the education space. We've developed an e-learning platform that several schools are already using. We currently have ...
I have a table that looks like this in MySQL: id | date | num | avg I have found that I can use this for rows to columns and it works so far: SELECT CONCAT(id, '-', date), MAX(IF(`num` = ...
We have over 5TB compressed web server log in a HDFS and we often analyse using Hadoop. It is painful to run map reduce on 5TB of data and most importantly, not many developer are familiar with it. ...