Which of the following constraint types can be used to ensure the value of an INTEGER column references only positive values?（）A、UniqueB、CheckC、ReferentialD、Informational
Which of the following constraint types can be used to ensure the value of an INTEGER column references only positive values?（）
A、Unique
B、Check
C、Referential
D、Informational
发布时间：2026-01-25 20:08:40
