INSERT INTO table VALUES ..和 之间的主要区别是什么INSERT INTO table SET? 例: INSERT INTO table (a, b, c) VALUES (1,2,3) INSERT INTO table SET a=1, b=2, c=3 那这两个的性能如何?
我在netbeans上编写了一个Maven代码,大约有2000多行。当我在netbeans上编译它时,一切都很好,但是如果我想在命令行上运行它,则会出现以下错误: generics are not supported in -source 1.3 (use -source 5 or higher to enable generics) ArrayList<ArrayList<Integer>> list = new ArrayList<ArrayList<Integer>>(); generics are not supported in -source 1.3 (use -source 5 or higher to enable generics) HashSet<Double> resid_List = new HashSet<Double>(Arrays.asList(resid_val)); generics are not supported in -source 1.3 (use -source …