我建议始终为表和列添加别名.因此，您将确保选择了哪些数据.

I suggest always add aliases to tables and columns. So you will be sure which data are selected.

select
    T1.somedata,
    T1.somedata1,
    T2X.name as XName,
    T2Y.name as YName
from T1 as T1
    inner join T2 as T2X on T2X.id = T1.X
    inner join T2 as T2Y on T2Y.id = T1.Y