当我在下面的查询中使用左边的外部连接时,查询无限地执行而不给出结果集。然而 - 单独他们工作正常,如果我将其从左外连接更改为内连接。但我需要下面的interregen表中的所有值。mysql-orderby和左外部连接问题
不理解什么可能是错误:(
我的MySQL查询:
SELECT r.name,
r.network,
r.namestring,
i.name,
i.description,
r.rid,
i.id,
d.dtime,
d.ifInOctets,
d.ifOutOctets,
FROM_UNIXTIME(d.dtime)
FROM range AS r
JOIN interregen AS i ON r.rid = i.rid
LEFT JOIN 1278993600_1_60 AS d ON i.id = d.id -- i.id is the primary key
AND dtime BETWEEN 1279026000 AND 1279040400
WHERE r.net = 'ITPN'
AND i.status = 'active'
ORDER BY i.id, d.dtime
请帮助! 感谢
您能否更新输出:“DESC range”,“DESC interrgen”和“DESC 1278993600_1_60”?另外,每个表的'SELECT COUNT(*)FROM'的结果是什么? – 2010-08-19 16:26:08