mysql - 提供子行时从同一表中选择父行

Question

"id"    "parent"    "name"
"1"     "0"         "Books"
"2"     "1"         "Crime Fiction"
"3"     "2"         "Death On the Nile"

从类似上面的内容中，我如何选择父行的 name 以及 child 的名称。在这里，将提供子行的名称。我需要获取父级的 name。

期望的输出:

@id = 3

Crime Fiction //This is the name of the parent row - in this case 2
     Death on the Nile // This is the name of the row who's id was supplied.

如何在同一个表内进行选择？

Answer 1

select parent.name, child.name
from your_table child
left join your_table parent on child.parent = parent.id
where child.id = 3