典型的响应是JAVA将数字视为双精度,因为这是Java中的缺省值,并在编译时给出不匹配错误。如果我想要一个双精度类型的变量,我会使用double关键字,专门将变量声明为双精度类型。double x = 3.14;
为什么Java在声明变量时无法识别这一点,并坚持需要通过在末尾添加'f‘来将文本从双精度转换为浮点型?
I want to generate qualify_flag as '1' always when device_end_dt = '9999-12-31 23:29:59'.If it is
not '9999-12-31 23:29:59' then if DEVICE_END_DT + 1 day = CREATION_DATE then qualify_flagCREATION_DATE column doesn't have any value which is '