recursive subquery factoring造句

例句与造句

1. Recursive CTEs ( or " recursive subquery factoring " in Oracle jargon ) can be used to traverse relations ( as graphs or trees ) although the syntax is much more involved because there are no automatic pseudo-columns created ( like LEVEL above ); if these are desired, they have to be created in the code.
2. It's difficult to find recursive subquery factoring in a sentence. 用recursive subquery factoring造句挺难的