Leonid Batkhan describes and discusses pros and cons of 3 different algorithms and SAS code implementations to calculate length of overlap of date/time intervals and integer intervals in general.
Heartburn is the most common gastrointestinal symptom affecting more than ⅔ of the US population, but we’ve all likely had heartburn at some point. Proton Pump Inhibitors (PPI’s), drugs typically prescribed for heartburn symptoms (they reduce the acid production in your stomach), are among the top 10 most prescribed medications.
Some colors have names, such as "Red," "Magenta," and "Dark Olive Green." But the most common way to specify a color is to use a hexadecimal value such as CX556B2F. It is not obvious that "Dark Olive Green" and CX556B2F represent the same color, but they do! I like to
