CodeIgniter 4 Query Builder union() and unionAll() methods
Published in
5 min readDec 7, 2022
UNION
and UNION ALL
set operators return the combined rows from 1 or more SELECT
queries. CodeIgniter 4 Query Builder now supports UNION
and UNION ALL
queries with the $builder->union()
and $builder->unionAll()
methods respectively. Learn how to create these types of queries in this article.
This article and many to follow, are part of a series of articles I am writing and sharing as I learn new concepts when I learn them. I think of it as a duty in sharing the things I learn as a self-taught developer. We all need to support one…