select * from user where birthday > '1984-02-19' and birthday < '1986-04-08';
と、
select * from user where birthday between '1984-02-19' and '1986-04-08';
は同じです。
select * from user where birthday > '1984-02-19' and birthday < '1986-04-08';
と、
select * from user where birthday between '1984-02-19' and '1986-04-08';
は同じです。