Mysql实现开窗函数功能：
参考：http://stackoverflow.com/questions/3333665/rank-function-in-mysql
CREATE TABLE person (id int, first_name varchar(20), age int, gender char(1)); INSERT INTO person VALUES (1, 'Bob', 25, 'M'); INSERT INTO person VALUES (2, 'Jane', 20, 'F'); INSERT INTO person VALUES (3, 'Jack', 30, 'M'); INSERT INTO person VALUES (4, 'Bill', 32, 'M'); INSERT INTO person VALUES (5, 'Nick', 22, 'M'); INSERT INTO person VALUES (6, 'Kathy', 18, 'F'); INSERT INTO person VALUES (7, 'Steve', 36, 'M'); INSERT INTO person VALUES (8, 'Anne', 25, 'F'); --------------------------------------------- --不是做分区,只做排名--- SELECT first_name, age, gender, @curRank := @curRank + 1 AS rank FROM person p, (SELECT @curRank := 0) r ORDER BY age;--分区排名-- SELECT a.first_name, a.age, a.gender, count(b.age)+1 as rank FROM person a left join person b on a.age>b.age and a.gender=b.gender group by a.first_name, a.age, a.gender
