Before computers, accountants used special paper with columns to summarize general ledger entries. Columnar worksheets made accounting projects easier than if they were written on notebook paper.

Breast terminal duct epithelium which assumes a columnar morphologic appearance has been recognized for decades, and has been referred to by a variety of names, including abnormal involution, cystic ...

Google has updated its managed database service — Spanner — with a new columnar engine to help enterprises run complex analytical queries on real-time transactional data for better decision-making.