Joinmetode
Joinmetode is a technique used in data management to combine information from two or more datasets based on related keys or conditions. It is a core operation in relational databases, data warehouses, and many data-processing frameworks, allowing queries to assemble records that are related across tables.
Common join types include inner join, left outer join, right outer join, full outer join, and cross
Join operations can be implemented by different algorithms, such as hash join, sort-merge join, and nested-loop
Beyond databases, the term appears in programming languages where a join method can concatenate values or merge