The notion that OLAP/DW data do not require integrity is somewhat of an illusion. DWs must be populated quite often and, given that most OLTP database...

Based on experience, my guess is that the reaction to this article will be about my arrogance and mistreatment of Hillyer; nobody will really express ...

In the summary of his column on DB2 NULLs in IDUG Solutions Journal Craig Mullins writes: "Nulls are clearly one of the most misunderstood features o...

In this article we discuss the drawbacks of pointers (unless otherwise stated, in what follows quotes are from the Date article, to which the reader i...

I have long been deploring what I call the "cookbook" approach to becoming a database practitioner. There is hardly education to be had any more, incl...

How data is physically stored-column-wise, row-wise, or any other way-has nothing to do with relational constructs. So when Gray asks, "Is it any wond...

It is always a bad idea to put engineers in charge of languages, integration, modeling, design, or anything of the sort; that's like hiring a building...

We are not the first to notice these tides of change. In 1998, the leading database researchers concluded that database management systems were becomi...