10
votes
3answers
2k views

Should I store False as Null in a boolean database field?

Let's say you have an application that has a boolean field in its User table called Inactive. Is there anything inherently wrong with just storing false as null? If so can you please explain what the ...
3
votes
2answers
119 views

Best Way to Express Meta-Info on Missing Data?

I work in healthcare IT, reviewing data management processes of various observational studies. One problem I have repeatedly faced is the poorly encoded data, especially when some values are missing. ...