AVG在SQL - 浮点数问题

Question

SELECT     AVG(variable) AS Expr1, SUM(variable) AS Expr2
FROM       ......

结果为AVG为2，但它是不正确的，它必须是2.95。这是什么问题，什么想法？

Answer 1

尝试

Select
    AVG(Cast(variable as Float)),
    SUM(variable)
From
    Table