HackerPapers

arXiv:1606.00740cs.DB

The Meaning of Null in Databases and Programming Languages

Kenneth Baclawski

Early discovery. Linked by one identifiable commenter. This paper is outside the main ranking; a mention is not an endorsement.

Abstract

The meaning of null in relational databases is a major source of confusion not only among database users but also among database textbook writers. The purpose of this article is to examine what database nulls could mean and to make some modest suggestions about how to reduce the confusion.

arXiv comments
Journal reference
DOI
Subjects
cs.DBDatabases

On Hacker News

Linked by 1 identifiable commenter in 1 comment across 1 thread, from Feb 2020 to Feb 2020. Found in 1 HN submission from Apr 2020 to Apr 2020. Open submission discussions.

Comments linking this paper, per year.

Discussed in comments1 thread

  1. Null Values in SQL Queries 1 comment

    • > Maybe we should have introduced NEX (non-existing) and NAP (non-applicable) as possible values in addition to NULL? Codd (the inventor of relational algebra) actually suggested this. I think the primary source is a book that may not be on the web. There's some discussion here…

      scottlambView on HNParent context

Submitted to Hacker News

Connected through shared HN threads, not inferred similarity or a recommendation.