如何在SQL中将Float转换为Varchar

Question

我这样做

declare @num float = 7708369000

select  @num as [float], 
    convert(varchar, @num) as [varchar]

它给了我这个

float                  varchar
---------------------- ------------------------------
7708369000             7.70837e+009

但我想要这个

float                  varchar
---------------------- ------------------------------
7708369000             7708369000

请帮忙.

Answer 1

首先将其转换为十进制,

CAST(CAST(@num AS DECIMAL(20)) AS VARCHAR(20))

• SQLFiddle演示

Answer 2

尝试使用Str函数而不是使用convert

DECLARE @num float = 7708369000;    
SELECT Str(@num);