请描述您的问题地址:https://dnspod.cloud.tencent.com/act/yearendsales?fromSource=gwzcw.602412.602412.602412Mozilla/5.0 (Windows NT 5.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/55.0.2883.87 Safari/537.36
我有三个表:域名,注册和跟踪。sites.domain = tracking.domainORDER BY sites.id;SELECT sites.id, sites.domain, count(tracking.domain) as tracked, signers.cc FROM sites
LEFTJOIN tracking ON sites.domain = tracking.dom