What is a dimension table? In data warehousing, a dimension table is a database table that stores attributes describing the facts in a fact table. A dimension table is the physical implementation of a ...

To kick off our first column of the year, we're going to take on a challenging subject that all designers face: how to deal with changing dimensions. Unlike most OLTP systems, a major objective of a ...

Entity relationship models used in business systems are typically organized to support efficient execution of transactions or operational events. Because the focus is on ensuring rapid response times, ...

Now that data warehousing has become ubiquitous in the corporate world, "clean slate" designs of entirely new decision support systems are becoming somewhat rare. Instead, designs and roadmaps are ...