Question

我有这个问题：

SELECT 'events' AS tbl,events.*, users.name, users.lastname,
       (SELECT COUNT(*) FROM events_participants WHERE 
        events_participants.eventid=events.id) AS participants 
       FROM 
       (events INNER JOIN users ON users.id=events.organizer) 
       WHERE events.isConfirmed<=1 
       AND events.category='art&culture' 
       AND events.city='Roma(Rm)'AND events.datetime >= '2011/02/22 22:30' 
       AND events.datetime<='2011/06/22 23:00' ORDER BY events.datetime DESC

＆&中的＆符号art&culture会导致查询不返回行。

Answer 1

如果这是完整查询，看起来'2011/06/22 23:00'和ORDER BY之间应该有空格

Answer 2

可能的问题：

datetime是保留字。尝试将events.datetime替换为events.`datetime`，无论它出现在哪里。

Answer 3

在MySQL中，您可以在文本字段中搜索＆符号，如下所示：

mysql> create table yar (id INT, mytext TEXT);
Query OK, 0 rows affected (0.02 sec)

mysql> insert into yar values(1, 'art&culture');
Query OK, 1 row affected (0.00 sec)

mysql> select * from yar;
+------+-------------+
| id   | mytext      |
+------+-------------+
|    1 | art&culture |
+------+-------------+
1 row in set (0.00 sec)

mysql> select * from yar where mytext = 'art&culture';
+------+-------------+
| id   | mytext      |
+------+-------------+
|    1 | art&culture |
+------+-------------+
1 row in set (0.00 sec)

在MySQL文本字段中搜索＆符号

3 个答案: