这是文档时里说的,你看看吧,说的很明白啊static int TYPE_SCROLL_INSENSITIVE
The constant indicating the type for a ResultSet object that is scrollable but generally not sensitive to changes made by others.
static int TYPE_SCROLL_SENSITIVE
The constant indicating the type for a ResultSet object that is scrollable and generally sensitive to changes made by others.
The constant indicating the type for a ResultSet object that is scrollable but generally not sensitive to changes made by others.
static int TYPE_SCROLL_SENSITIVE
The constant indicating the type for a ResultSet object that is scrollable and generally sensitive to changes made by others.
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假如两个人AB同时对 同一个表进行一些操做,如下:A 正在显示表中的数据(假设要显示的数据很多)
B 先修改表中的一些数据,再显示数据
因为B已经修改数据了,如果使用TYPE_SCROLL_SENSITIVE ,则A将会看到数据的改变,否则A不会看到,也就是说A看到的不是最新数据