fulltext_left_join.result
上传用户:romrleung
上传日期:2022-05-23
资源大小:18897k
文件大小:2k
源码类别:
MySQL数据库
开发平台:
Visual C++
- drop table if exists t1, t2;
- CREATE TABLE t1 (
- id VARCHAR(255) NOT NULL PRIMARY KEY,
- sujet VARCHAR(255),
- motsclefs TEXT,
- texte MEDIUMTEXT,
- FULLTEXT(sujet, motsclefs, texte)
- );
- INSERT INTO t1 VALUES('123','toto','essai','test');
- INSERT INTO t1 VALUES('456','droit','penal','lawyer');
- INSERT INTO t1 VALUES('789','aaaaa','bbbbb','cccccc');
- CREATE TABLE t2 (
- id VARCHAR(255) NOT NULL,
- author VARCHAR(255) NOT NULL
- );
- INSERT INTO t2 VALUES('123', 'moi');
- INSERT INTO t2 VALUES('123', 'lui');
- INSERT INTO t2 VALUES('456', 'lui');
- select round(match(t1.texte,t1.sujet,t1.motsclefs) against('droit'),5)
- from t1 left join t2 on t2.id=t1.id;
- round(match(t1.texte,t1.sujet,t1.motsclefs) against('droit'),5)
- 0.00000
- 0.00000
- 0.67003
- 0.00000
- select match(t1.texte,t1.sujet,t1.motsclefs) against('droit' IN BOOLEAN MODE)
- from t1 left join t2 on t2.id=t1.id;
- match(t1.texte,t1.sujet,t1.motsclefs) against('droit' IN BOOLEAN MODE)
- 0
- 0
- 1
- 0
- drop table t1, t2;
- create table t1 (venue_id int(11) default null, venue_text varchar(255) default null, dt datetime default null) engine=myisam;
- insert into t1 (venue_id, venue_text, dt) values (1, 'a1', '2003-05-23 19:30:00'),(null, 'a2', '2003-05-23 19:30:00');
- create table t2 (name varchar(255) not null default '', entity_id int(11) not null auto_increment, primary key (entity_id), fulltext key name (name)) engine=myisam;
- insert into t2 (name, entity_id) values ('aberdeen town hall', 1), ('glasgow royal concert hall', 2), ('queen's hall, edinburgh', 3);
- select * from t1 left join t2 on venue_id = entity_id where match(name) against('aberdeen' in boolean mode) and dt = '2003-05-23 19:30:00';
- venue_id venue_text dt name entity_id
- 1 a1 2003-05-23 19:30:00 aberdeen town hall 1
- select * from t1 left join t2 on venue_id = entity_id where match(name) against('aberdeen') and dt = '2003-05-23 19:30:00';
- venue_id venue_text dt name entity_id
- 1 a1 2003-05-23 19:30:00 aberdeen town hall 1
- select * from t1 left join t2 on (venue_id = entity_id and match(name) against('aberdeen' in boolean mode)) where dt = '2003-05-23 19:30:00';
- venue_id venue_text dt name entity_id
- 1 a1 2003-05-23 19:30:00 aberdeen town hall 1
- NULL a2 2003-05-23 19:30:00 NULL NULL
- select * from t1 left join t2 on (venue_id = entity_id and match(name) against('aberdeen')) where dt = '2003-05-23 19:30:00';
- venue_id venue_text dt name entity_id
- 1 a1 2003-05-23 19:30:00 aberdeen town hall 1
- NULL a2 2003-05-23 19:30:00 NULL NULL
- drop table t1,t2;