• 2022-06-07
    对数值型变量V_NUM,进行四舍五入,保留小数点后两位,以下操作正确的是()
    A: SUBSTR(V_NUM,1,2)
    B: TRUNC(V_NUM,2)
    C: TRUNC(V_NUM,-2)
    D: ROUND(V_NUM,2)
    E: ROUND(V_NUM,-2)