MySQL：对子查询列求和

在MySQL中是否有一种优雅的要领可以做到这一点：

SELECT (subquery1) AS s1,(subquery2) AS s2,(s1+s2) AS s3

照旧我必需诉诸

SELECT (subquery1) AS s1,((subquery1)+(subquery2)) AS s3

？

感谢

编辑：两个子查询发生整数功效

SELECT @query1:=(subquery) AS s1,@query2:=(subquery) AS s2,(@query1+@query2) AS s3

如故没有那么优雅.大概您可以具体声名子查询,以便我们可以提出更好的要领？

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