mysql - 将两个选择语句合并/合并为一个

下面的MySQL语句有两个select语句，其中一个对另一个select返回的所有结果执行select。只是想知道它是否有可能合并成一个。就像三重连接。

select networks.name as network_name, installations.name as installation_name
from network_installations

join installations on installations.id = network_installations.installation_id

join networks on networks.id = network_installations.network_id

where network_installations.network_id in (
    select network_installations.network_id
    from network_installations
    where network_installations.installation_id = 1
);

注意。我做过sql查询，但这是我第一次使用sql连接。

最佳答案

为表网络安装使用别名：

select networks.name as network_name, installations.name as installation_name
from network_installations ni1
join installations on installations.id = ni1.installation_id
join networks on networks.id = ni1.network_id
join network_installations ni2 on ni2.network_id = ni1.network_id
where ni2.installation_id = 1