AVG in Sql - 浮点数问题

Question

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

AVG的结果是2，但它不是真的，它必须是2.95。什么问题，有什么想法？

Answer 1

尝试

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