tulosjoukko

Tulosjoukko is a Finnish term meaning “result set.” It refers to the collection of results produced by a calculation, a database query, or a mathematical function, and it is used across fields such as information technology, statistics, and mathematics.

In databases and query languages, the tulosjoukko is the set of rows returned by a query. Its content is determined by selection criteria, projections, joins, and aggregations. In SQL terms, the tulosjoukko is conceptually a table; the order of rows is not guaranteed unless an ORDER BY clause is used, and duplicates may appear unless DISTINCT is specified.

In mathematics, tulosjoukko can denote the image or range of a function or relation: the set of all outputs f(x) as x runs over the domain. This tulosjoukko is a subset of the codomain and may be smaller than the codomain, depending on the function’s properties.

Beyond databases and math, the term is also used in algorithmic or computational contexts to describe the final output of a procedure, experiment, or simulation. The tulosjoukko is distinct from the input data and from intermediate results, yet it serves as the primary object for further analysis, reporting, or decision-making.

The concept is a staple of Finnish technical writing and education, helping to distinguish the observable results from other data involved in a process.