MySQL implements the division of two query results

Pictured , Recently, when testing report statistics , Customer unit price to be tested , I need to calculate the total amount of goods first , Then count the total order quantity of goods , Then divide their data

Customer unit price = Total order amount / Total orders

MYSQL Calculation formula

 for example ：
sql1=select sum(a) from xx;
      sql2=select sum(b) from xx;


select 
(select sum(a) from xx)
/
(select sum(b) from xx)


Select sum(a) / sum(b) 
From XX

Copy

Publisher ： Full stack programmer stack length , Reprint please indicate the source ：https://javaforall.cn/100680.html Link to the original text ：https://javaforall.cn