second normal form造句

例句与造句

1. Just as a normalization of databases above second normal form would become much more difficult.
2. A table that is in first normal form ( 1NF ) must meet additional criteria if it is to qualify for second normal form.
3. Codd went on to define the Second normal form ( 2NF ) and Third normal form ( 3NF ) in 1971, and Codd and Raymond F . Boyce defined the Boyce-Codd Normal Form ( BCNF ) in 1974.
4. It's difficult to find second normal form in a sentence. 用second normal form造句挺难的