是否有可能计算匹配匹配的每行有多少字匹配

Question

是否可以直接在mysql查询中使用？ 实施例：在布尔模式+possible +know

搜索 “我想知道如何这是可能的”=> 2个匹配

“一切都是可能的”=> 1匹配

Answer 1

UPDATE我移动我的原始答案down

我有一个奇怪的建议

您可能需要使用m ysql工具，叫做myisam_ftdump

下面是从样品FULLTEXT转储在我原来的答复

C:\MySQL_5.5.12\data\sandro>myisam_ftdump -vc txtdata 1 
     2   0.4054651 everyhing 
     2   0.4054651 impossible 
     1   1.3862944 knew 
     3   -0.4054651 know 
     2   0.4054651 nothing 
     1   1.3862944 people 
     2   0.4054651 possible 
     1   1.3862944 probable 
     1   1.3862944 something 

如果您可以生成这是一个文本文件，你可以有PHP解析它，你正在寻找的字。

原来的答案

带或不带布尔模式，答案是否定的。

但是，可以显示基于词出现和整个字符串长度的排名如下：

样本数据

DROP DATABASE sandro; 
CREATE DATABASE sandro; 
use sandro 
CREATE TABLE txtdata 
(
    id int not null auto_increment, 
    txt VARCHAR(255), 
    primary key (id), 
    FULLTEXT (txt) 
) ENGINE=MyISAM; 
INSERT INTO txtdata (txt) VALUES 
('I know Nothing is possible'), 
('We know nothing is impossible'), 
('I knew everyhing is possible'), 
('We know everyhing is possible'), 
('For may people something is probable'); 

这里是各种搜索排名

mysql> SELECT *,MATCH(txt) AGAINST ('possible knew') as score FROM txtdata; 
+----+--------------------------------------+--------------------+ 
| id | txt         | score    | 
+----+--------------------------------------+--------------------+ 
| 1 | I know Nothing is possible   | 0.3919430673122406 | 
| 2 | We know nothing is impossible  |     0 | 
| 3 | I knew everyhing is possible   | 1.73200523853302 | 
| 4 | We know everyhing is impossible  |     0 | 
| 5 | For may people something is probable |     0 | 
+----+--------------------------------------+--------------------+ 
5 rows in set (0.00 sec) 

mysql> SELECT *,MATCH(txt) AGAINST ('possible know') as score FROM txtdata; 
+----+--------------------------------------+--------------------+ 
| id | txt         | score    | 
+----+--------------------------------------+--------------------+ 
| 1 | I know Nothing is possible   | 0.3919430673122406 | 
| 2 | We know nothing is impossible  |     0 | 
| 3 | I knew everyhing is possible   | 0.3919430673122406 | 
| 4 | We know everyhing is impossible  |     0 | 
| 5 | For may people something is probable |     0 | 
+----+--------------------------------------+--------------------+ 
5 rows in set (0.00 sec) 

mysql> SELECT *,MATCH(txt) AGAINST ('impossible knew') as score FROM txtdata; 
+----+--------------------------------------+--------------------+ 
| id | txt         | score    | 
+----+--------------------------------------+--------------------+ 
| 1 | I know Nothing is possible   |     0 | 
| 2 | We know nothing is impossible  | 0.3919430673122406 | 
| 3 | I knew everyhing is possible   | 1.340062141418457 | 
| 4 | We know everyhing is impossible  | 0.3919430673122406 | 
| 5 | For may people something is probable |     0 | 
+----+--------------------------------------+--------------------+ 
5 rows in set (0.00 sec) 

mysql> SELECT *,MATCH(txt) AGAINST ('impossible know') as score FROM txtdata; 
+----+--------------------------------------+--------------------+ 
| id | txt         | score    | 
+----+--------------------------------------+--------------------+ 
| 1 | I know Nothing is possible   |     0 | 
| 2 | We know nothing is impossible  | 0.3919430673122406 | 
| 3 | I knew everyhing is possible   |     0 | 
| 4 | We know everyhing is impossible  | 0.3919430673122406 | 
| 5 | For may people something is probable |     0 | 
+----+--------------------------------------+--------------------+ 
5 rows in set (0.00 sec) 

mysql>