select DISTINCT i.filename "Filename",p.ips_acknow_id“isp_acknows”from isp_acknows I LEFT JOIN pdfreads p ON i.id = p.ips_acknow_id
我也可以使用join来实现这一点,但是为了提高性能,我需要使用这种格式。
Note:
1. isp_acknows table
Schema::create('isp_acknows', function (Blueprint $table) {
$table-&
是否可以在清单文件中使用循环?例如在我得到的一个inv文件中: ---
ISPs:
- name: ISP1
- name: ISP2
networks:
- name: network1
- name: network2
- name: network3 然后我想在同样的清单中创建类似这样的东西: from ISP1 to network1 permit
from ISP1 to network2 permit
from ISP1 to network3 permit
from ISP2 to network1 permit
from ISP2 to network2 permit
fr