boolean datatype造句

例句与造句

1. The F571 extension was actually present in SQL92, well before the boolean datatype was introduced to the standard in 1999 . The F571 extension is implemented by few systems however; PostgreSQL is one of those implementing it.
2. The F571 extension is orthogonal to the presence of the boolean datatype in SQL ( discussed later in this article ) and, despite syntactic similarities, F571 does not introduce boolean or three-valued literals in the language.
3. It's difficult to find boolean datatype in a sentence. 用boolean datatype造句挺难的