NULL

Missing Data

  • Article

Missing data is a difficult and common problem to solve. In this article, Joe Celko explains several approaches to deleting or replacing missing data.

2018-07-04

2,461 reads

Database Design Follies: NULL vs. NOT NULL

  • Article

It sounds simple enough. Either your column will always have a value or it may not. Yet somehow such a seemingly simple decision can become a never-ending debate where database schema begins to resemble superstition and designing effective tables seems more contentious than you expected it to be.

4.38 (78)

2016-02-26 (first published: )

18,203 reads

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