-- select * from tb_internetnetwork; -- PRAGMA database_list; -- insert into tb_region(ID,GEOGRAPHICLOCATION, OPERATIONUNIT, SITE) VALUES ('1','亦庄数据中心外网','国网信通公司','外网') -- insert into tb_internetnetwork(net, isp, location, inter_region_id) VALUES ('192.168.1.0/24','BGP','亦庄','1'); -- delete from tb_region where id=1; -- PRAGMA foreign_keys; 开启 外键级联功能