A simple guide for DB migrations Craig Kerstiens
Avoiding downtime when adding a new column with a NOT NULL constraint to a large table.
postgresql  database  migration 
3 hours ago
Teaching Novice Programmers How to Debug Their Code
1. What makes you say your code isn't working?
2. What did you expect your code to do and why?
3. What did your code do instead and how do you know?
programming  education  debugging 
18 days ago
iPhone 6 Screens Demystified
"Few days ago, Apple introduced iPhone 6 Plus. The new iPhone substantially changes the way graphics are rendered on screen. We've made an infographic to demystify this."
iphone  resolution  infographics 
20 days ago
Leader–member exchange theory - Wikipedia, the free encyclopedia
'The best advice probably goes to the worker that understands LMX, "Get on the inside track immediately."' – theologic, Hacker News
management  career 
7 weeks ago
Isochrone map - Wikipedia, the free encyclopedia
Map showing areas accessible within a certain amount of time.
urbanism  planning  map  data  visualization 
8 weeks ago
5 Steps to Safer Bike Lanes — Medium
Dashcam for your bike, then report offenders.
cycling  sf 
8 weeks ago
Amazon's Scorpion Problem - Feld Thoughts
"1. AWS is not the low price provider.
2. AWS is not the best product at anything – most of their features are mediocre knock offs of other products.
3. AWS is unbelievably lousy at support.
4. Once you are at $200k / month of spend, it’s cheaper and much more effective to build your own infrastructure."
amazon  was 
9 weeks ago
Constant of constants - The Pug Automatic
Create an Array of constants that are constants. Nice tip.
ruby  tips 
10 weeks ago
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