添加$和圆2小数位的SQL [英] add $ and round 2 decimal places SQL

问题描述

我正在寻找格式化由子查询创建的输出，这个子查询产生一个计算的字段，我想格式化为$ XX.XX。

子查询：

 （从汽车中选择平均值（零售）
其中brand ='FORD'或品牌='TOYOTA'）作为AVG_BRAND_PRICE_01 
  

我基本上只想添加一个$符号并围绕输出到小数点后两位。

任何帮助或方向都将不胜感激。

我正在使用isql plus oracle 11g

解决方案

您可以试试这个：

 '$'|| （（选择平均（零售）从汽车
 where brand ='FORD'或品牌='TOYOTA'）作为十进制（4,2））AVG_BRAND_PRICE_01 
  

如果你想要多于$ XX.XX例如$ XXXXXXX.XX那么你将需要设置小数点以上十进制（9,2）

示例SQL小提琴： http://www.sqlfiddle.com/#!4/9f684/2/0

I am looking to format an ouput which is created by a sub-query, this sub-query produces a calculated field which i would like to format as $XX.XX.

Sub query:

(select avg(retail) from cars 
where brand = 'FORD' or brand = 'TOYOTA') as AVG_BRAND_PRICE_01

I basically just want to add a $ sign and round the output to two decimal places.

Any help or direction would be much appreciated.

I am using isql plus oracle 11g

解决方案

You could try this:

'$' || Cast((select avg(retail) from cars 
where brand = 'FORD' or brand = 'TOYOTA') as decimal(4,2)) as AVG_BRAND_PRICE_01

If you want more than $XX.XX e.g $XXXXXXX.XX then you will need to set the decimal higher e.g. decimal(9,2)

Example SQL Fiddle: http://www.sqlfiddle.com/#!4/9f684/2/0

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