some:一些,是any的别名,不常用
in、any、all的使用
#in 的用法
select * from user where id in (1,2,3,4);
#any 的用法
select * from user where id any (1,2,3,4);#错误用法,any 和 all要结合=、>、>=、<、<=、<>使用
select * from user where id = any (select id from user where id in (1,2,3,4));
#all 的用法
select * from user where id > all (select id from user where id in (1,2,3,4));