标签：class spl hid city sql last src div leetcode
两个表连接：inner join要两个都有，right outer join是要右边的表有这个数据（on后面的），left outer join是要左边的有这个数据，full outer join只要某一张有就可以
leetcode 175
无难度，连接俩表，要左边数据的都要 用left outer join
select FirstName,LastName,City,State From Person left outer join Address on Person.PersonId=Address.PersonId
标签：class spl hid city sql last src div leetcode
原文地址：https://www.cnblogs.com/tingxilin/p/13174411.html
