At the bottom of the post you can find a simplify query of what I am trying to do
我正在尝试创建一个查询来显示我们TRAC系统中所有用户的生产力。我需要知道他们输入的所有评论（每张票每周唯一）、触碰的票数、关闭的票数和修订数（接下来我还要添加此类修订中的文件数检查节点）。我创建了一个几乎可以满足我需要的查询，只要该人在那周至少触摸了一张票。我有用户在没有参考票证的情况下提交修订（错误，我知道，但我也需要抓住它们）并且我尝试添加RIGHT JOINand anUNION来模拟OUTER JOIN MySQL 不支持的，而不是我收到此错误：
1064 - You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 't LEFT JOIN ( SELECT CONCAT( ' at line 65
如果我注释掉它的两个部分之一，UNION它就可以工作。
我已经尝试为表格提供不同的别名
SELECT
t.`author` __group__,
t.`month-week`,
t.changes,
t.tickets,
t.closed,
r.`revisions`
FROM
(
(
SELECT
CONCAT(
MONTH(FROM_UNIXTIME(tc.`time`/1000000)),
'-',
WEEK(FROM_UNIXTIME(tc.`time`/1000000))
) `month-week`,
COUNT(IF(tc.`field` = "comment",tc.ticket,NULL)) `changes`,
COUNT(DISTINCT tc.`ticket`) `tickets`,
COUNT(DISTINCT IF(tc.`field` = "status" AND tc.`newvalue` = "closed",tc.`ticket`,NULL)) `closed`,
tc.`author`
FROM `ticket_change` tc
WHERE
tc.`time` > UNIX_TIMESTAMP(NOW()-INTERVAL 2 MONTH)*1000000
GROUP BY
tc.`author`,
YEARWEEK(FROM_UNIXTIME(tc.`time`/1000000))
) `t`
LEFT JOIN
(
SELECT
CONCAT(
MONTH(FROM_UNIXTIME(r.`time`/1000000)),
'-',
WEEK(FROM_UNIXTIME(r.`time`/1000000))
) `month-week`,
COUNT(DISTINCT r.`rev`) `revisions`,
r.`author`
FROM `revision` r
WHERE
r.`time` > UNIX_TIMESTAMP(NOW()-INTERVAL 2 MONTH)*1000000
GROUP BY
r.`author`,
YEARWEEK(FROM_UNIXTIME(r.`time`/1000000))
) `r` ON `t`.`month-week` = `r`.`month-week` AND `t`.`author` = `r`.`author`
)
UNION
(
(
SELECT
CONCAT(
MONTH(FROM_UNIXTIME(tc.`time`/1000000)),
'-',
WEEK(FROM_UNIXTIME(tc.`time`/1000000))
) `month-week`,
COUNT(IF(tc.`field` = "comment",tc.ticket,NULL)) `changes`,
COUNT(DISTINCT tc.`ticket`) `tickets`,
COUNT(DISTINCT IF(tc.`field` = "status" AND tc.`newvalue` = "closed",tc.`ticket`,NULL)) `closed`,
tc.`author`
FROM `ticket_change` tc
WHERE
tc.`time` > UNIX_TIMESTAMP(NOW()-INTERVAL 2 MONTH)*1000000
GROUP BY
tc.`author`,
YEARWEEK(FROM_UNIXTIME(tc.`time`/1000000))
) `t`
LEFT JOIN
(
SELECT
CONCAT(
MONTH(FROM_UNIXTIME(r.`time`/1000000)),
'-',
WEEK(FROM_UNIXTIME(r.`time`/1000000))
) `month-week`,
COUNT(DISTINCT r.`rev`) `revisions`,
r.`author`
FROM `revision` r
WHERE
r.`time` > UNIX_TIMESTAMP(NOW()-INTERVAL 2 MONTH)*1000000
GROUP BY
r.`author`,
YEARWEEK(FROM_UNIXTIME(r.`time`/1000000))
) `r` ON `t`.`month-week` = `r`.`month-week` AND `t`.`author` = `r`.`author`
)
WHERE r.revisions > 0 OR t.closed > 0
ORDER BY
t.`author`,
t.`month-week`
MySQL 服务器/客户端版本：5.0.33
--
SELECT
t.fields,
r.fields
FROM
(
(
SELECT tc.fields
FROM tc
WHERE tc.field > NOW() - INTERVAL 2 MONTH
GROUP BY tc.field
) t
LEFT JOIN
(
SELECT rev.fields
FROM rev
WHERE rev.field > NOW() - INTERVAL 2 MONTH
GROUP BY rev.field
) r ON t.field = rev.field
)
UNION
(
(
SELECT tc.fields
FROM tc
WHERE tc.field > NOW() - INTERVAL 2 MONTH
GROUP BY tc.field
) t
RIGHT JOIN
(
SELECT rev.fields
FROM rev
WHERE rev.field > NOW() - INTERVAL 2 MONTH
GROUP BY rev.field
) r ON t.field = rev.field
)
WHERE t.field > 0 OR r.field > 0
ORDER BY t.field
希望能帮助到你
感谢您pst的帮助，我忘记SELECT * FROM在表格周围添加UNION
这是任何想要使用跟踪用户生产力的人的工作查询TRAC
SELECT
`author` __group__,
`month-week`,
changes,
tickets,
closed,
`revisions`
FROM
(
(
SELECT
t.`author`,
t.`month-week`,
t.changes,
t.tickets,
t.closed,
r.`revisions`
FROM
(
SELECT
CONCAT(
MONTH(FROM_UNIXTIME(tc.`time`/1000000)),
'-',
WEEK(FROM_UNIXTIME(tc.`time`/1000000))
) `month-week`,
COUNT(IF(tc.`field` = "comment",tc.ticket,NULL)) `changes`,
COUNT(DISTINCT tc.`ticket`) `tickets`,
COUNT(DISTINCT IF(tc.`field` = "status" AND tc.`newvalue` = "closed",tc.`ticket`,NULL)) `closed`,
tc.`author`
FROM `ticket_change` tc
WHERE
tc.`time` > UNIX_TIMESTAMP(NOW()-INTERVAL 2 MONTH)*1000000
GROUP BY
tc.`author`,
YEARWEEK(FROM_UNIXTIME(tc.`time`/1000000))
ORDER BY NULL
) `t`
LEFT JOIN
(
SELECT
CONCAT(
MONTH(FROM_UNIXTIME(r.`time`/1000000)),
'-',
WEEK(FROM_UNIXTIME(r.`time`/1000000))
) `month-week`,
COUNT(DISTINCT r.`rev`) `revisions`,
r.`author`
FROM `revision` r
WHERE
r.`time` > UNIX_TIMESTAMP(NOW()-INTERVAL 2 MONTH)*1000000
GROUP BY
r.`author`,
YEARWEEK(FROM_UNIXTIME(r.`time`/1000000))
ORDER BY NULL
) `r` ON t.`month-week` = r.`month-week` AND t.`author` = r.`author`
)
UNION
(
SELECT
t.`author`,
t.`month-week`,
t.changes,
t.tickets,
t.closed,
r.`revisions`
FROM
(
SELECT
CONCAT(
MONTH(FROM_UNIXTIME(tc.`time`/1000000)),
'-',
WEEK(FROM_UNIXTIME(tc.`time`/1000000))
) `month-week`,
COUNT(IF(tc.`field` = "comment",tc.ticket,NULL)) `changes`,
COUNT(DISTINCT tc.`ticket`) `tickets`,
COUNT(DISTINCT IF(tc.`field` = "status" AND tc.`newvalue` = "closed",tc.`ticket`,NULL)) `closed`,
tc.`author`
FROM `ticket_change` tc
WHERE
tc.`time`> UNIX_TIMESTAMP(NOW()-INTERVAL 2 MONTH)*1000000
GROUP BY
tc.`author`,
YEARWEEK(FROM_UNIXTIME(tc.`time`/1000000))
ORDER BY NULL
) `t`
RIGHT JOIN
(
SELECT
CONCAT(
MONTH(FROM_UNIXTIME(r.`time`/1000000)),
'-',
WEEK(FROM_UNIXTIME(r.`time`/1000000))
) `month-week`,
COUNT(DISTINCT r.`rev`) `revisions`,
r.`author`
FROM `revision` r
WHERE
r.`time`> UNIX_TIMESTAMP(NOW()-INTERVAL 2 MONTH)*1000000
GROUP BY
r.`author`,
YEARWEEK(FROM_UNIXTIME(r.`time`/1000000))
ORDER BY NULL
) `r` ON t.`month-week` = r.`month-week` AND t.`author` = r.`author`
)
) mtb
WHERE revisions > 0 OR closed > 0
ORDER BY
`author`,
`month-week`