conjunctive query
常见例句
- When the constraint expression of a query is not a CNF (Conjunctive Normal Form), it is generally transformed into an equivalent DNF (disjunctive normal form)an union of CNFs .
当数据立方查询条件不是合取范式时，一般是将它转化成为若干合取范式的并的形式（析取范式）。 返回 conjunctive query