Contributor at Data School,
Contributor at Data School
Josiah is a data strategy, BI, and visualization consultant. He brings experience a a practitioner having served many high-profile clients spanning healthcare, banking, and IT. These experiences provide him a unique vantage point on execution, optimization, and user-centric design.
- LinkedIn: Josiah Faas
Author of 5 chapters
What is the difference between UNION and UNION ALLFrom Learn SQL
UNION ALL keeps all of the records from each of the original data sets, UNION removes any duplicate records.