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: )

23,377 reads

Blogs

Daily Coping 17 Sep 2021

By

I started to add a daily coping tip to the SQLServerCentral newsletter and to...

Ethics in Modern Data at Music City Tech 2021

By

  On Sept 16, Christine and I presented our joint presentation on Ethics in Modern Data at...

Slides and Video from Building a Regret-free Foundation for your Data Factory Now Available

By

Last week, Kerry and I delivered a webinar with tips on how to set...

Read the latest Blogs

Forums

SQL 2016 SP3 CHECKDB WITH EXTENDED_LOGICAL_CHECKS problem.

By Ken McKelvey

This seems to be the same problem which occurred with SQL2017 CU21 and is...

Find all SPs, FNs, and VWs where particular string occurs

By Vladimir Isaev

I have this task to find all SPs, FNs, and VWs where particular string...

Excel privary levels

By V

There are three Excel privacy levels: Private, Organizational, Public. When Excel's privacy level is...

Visit the forum

Ask SSC

SQL Server Q&A from the SQLServerCentral community

Get answers