声明下列变量并赋值,计算下列表达式的值,用布尔型变量Result和Double型变量Total存放结果,运行并观察计算结果: a=3,b=4,c=hello,d=bye 表达式: (!(b == 3 + 1) &&(2 < b)) ||(d == N) 的结果是()的答案是什么.用刷刷题APP,拍照搜索答疑.刷刷题(shuashuati.com)是
sum(decode(aa.a3,2,aa.a1,0)) as 二分总量,sum(decode(aa.a3,3,aa.a1,0)) as 三分总量,sum(decode(aa.a3,4,aa.a1,0)) as 四分总量,sum(decode(aa.a3,5,aa.a1,0)) as 五分总量,sum(decode(aa.a1,'' ,0,aa.a1)) 满意度评价总量,sum(decode(aa.a4,'',0,aa.a4)) 满意度评价...