排名sql

mysql> use test2;

Database changed

mysql> create table scores

-> (

-> user int not null auto_increment primary key

-> ,

-> scores int not null);

Query OK, 0 rows affected (0.16 sec)

mysql> insert into scores(scores)

-> values(80),(90),(7),(99),(100);

Query OK, 5 rows affected (0.09 sec)

Records: 5 Duplicates: 0 Warnings: 0

mysql> select * from scores;

+------+--------+

| user | scores |

+------+--------+

| 1 | 80 |

| 2 | 90 |

| 3 | 7 |

| 4 | 99 |

| 5 | 100 |

+------+--------+

5 rows in set (0.00 sec)

mysql> select user,scores,(select count(*) from scores where scores >=(select sc

ores from scores where user=4 order by scores desc limit 1)) as pm from scores w

here user=4;

+------+--------+------+

| user | scores | pm |

+------+--------+------+

| 4 | 99 | 2 |

+------+--------+------+

1 row in set (0.00 sec)

function getTOP(&$db_class,$type='total',$user_id=NULL){

$result = array();

if($type=='total' && $user_id!==NULL){

$sql ='SELECT user_id,total, ( SELECT count( * ) FROM top WHERE total >= ( SELECT total FROM top WHERE user_id ='.$user_id.' ORDER BY total DESC LIMIT 1 ) ) AS pm FROM top WHERE user_id ='.$user_id;

$rs = $db_class->query($sql);

while($row = $db_class->fetchArray($rs)){

if($row) array_push($result,$row);

}

}else(($type=='type1' || $type=='type2' || $type=='type3') && $user_id!==NULL){

$sql = 'SELECT user_id,'.$type.', (

SELECT count( * )

FROM top

WHERE '.$type.' >= (

SELECT '.$type.'

FROM top

WHERE user_id ='.$user_id.' ORDER BY '.$type.' DESC

LIMIT 1 )

) AS pm

FROM top

WHERE user_id ='.$user_id;

$rs = $db_class->query($sql);

$result = $db_class->fetchArray($rs)

}

return $result;

}

//total

replace into top (select p.user_id,count(v.pic_id),0,0,0 from tbl_vote v,tbl_pic p where v.pic_id=p.id group by v.pic_id)

//type1

replace into top (select p.user_id,t.total,count(v.pic_id),0,0 from tbl_vote v,tbl_pic p,top t where t.user_id=p.user_id and v.pic_id=p.id and v.type=1 group by v.pic_id)

//type2

replace into top (select p.user_id,t.total,t.type1,count(v.pic_id),0 from tbl_vote v,tbl_pic p,top t where t.user_id=p.user_id and v.pic_id=p.id and v.type=2 group by v.pic_id)

//type3

replace into top (select p.user_id,t.total,t.type1,t.type2,count(v.pic_id) from tbl_vote v,tbl_pic p,top t where t.user_id=p.user_id and v.pic_id=p.id and v.type=3 group by v.pic_id)

//total 排名

SELECT user_id, total, (

SELECT count( * )

FROM top

WHERE total >= (

SELECT total

FROM top

WHERE user_id =100011

ORDER BY total DESC

LIMIT 1 )

) AS pm

FROM top

WHERE user_id =100011;

//type1 排名

SELECT user_id, type1, (

SELECT count( * )

FROM top

WHERE type1 >= (

SELECT type1

FROM top

WHERE user_id =100011

ORDER BY type1 DESC

LIMIT 1 )

) AS pm

FROM top

WHERE user_id =100011;

//type2排名

SELECT user_id, type2, (

SELECT count( * )

FROM top

WHERE type2 >= (

SELECT type2

FROM top

WHERE user_id =100011

ORDER BY type2 DESC

LIMIT 1 )

) AS pm

FROM top

WHERE user_id =100011;

//type3排名

SELECT user_id, type3, (

SELECT count( * )

FROM top

WHERE type3 >= (

SELECT type3

FROM top

WHERE user_id =100011

ORDER BY type3 DESC

LIMIT 1 )

) AS pm

FROM top

WHERE user_id =100011;

-------------------------------------------------------------------------------------------------------------------

select (select count(*) from `top` where k.total<total or (k.total=total and k.user_id>=user_id)) as pm

from `top` k

where user_id=100011;