这句话什么语法结构

题目

这句话什么语法结构
It works,but for production scenarios that solution would reduce every DBA to tears.
At least it will if the result is a SELECT that fetches all rows just so you can count how many rows there are.

答案

要不是因为脚本生成解决方案能减少 DBA 的麻烦,那它就是有效的.如果是通过 SELECT 来查询,它至少会返回所有行,那么你就可以统计它有多少行.
...
没看清什么语法结构.