nullable

基本解釋

Nullable types are a special case of generic types.
可爲(wèi)Null的類型是泛型類型的特例。
A SUM function that references a nullable expression.
引用可爲(wèi)空表達(dá)式的SUM函數(shù)。
Tables A & B both have indexes on the nullable IND_COL column.
表A和B都在可空列IND_COL上有索引。
Reset the nullable elements before new data is added to the bean.
重置空要素新的數(shù)據(jù)之前添加到豆。
The Nullable class provides complementary support for the Nullable structure.
Nullable類爲(wèi)Nullable結(jié)搆提供補(bǔ)充支持。