ABAP Keyword Documentation → ABAP Glossary
join
Association between multiple database
tables in which each pair of tables involved are joined using conditions between one or more columns. Joins can be implemented declaratively as
views in
ABAP Dictionary, or programmatically as
join expressions in the SELECT statement or in the
CDS DDL in
ABAP CDS.
CDS associations and
CTE associations, too, define join relationships, instances of which are created when the associations are used in
SQL path expressions.