On monotonic determinacy and rewritability for recursive queries and views
A query Q is monotonically determined over a set of views V if Q can be expressed as a monotonic function of the view image. In the case of relational algebra views and queries, monotonic determinacy coincides with rewritability as a union of conjunctive queries, and it is decidable in important spe...
| Автори: | , , , |
|---|---|
| Формат: | Journal article |
| Мова: | English |
| Опубліковано: |
Association for Computing Machinery
2023
|