协助进行复杂的MySQL SQL查询

Question

我希望这是寻求帮助的合适论坛。 我有一个SQL查询（MySQL），它没有在日期范围（两个日期之间）中返回正确的记录。 我很高兴回答与查询有关的问题，但是，如果有人可以提出建议或更正SQL Query，那将是一个很好的学习方法。 谢谢。

$raw_query = sprintf("SELECT
swtickets.ticketid AS `Ticket ID`,
swtickettimetracks.tickettimetrackid AS `Track ID`,
swtickets.ticketmaskid AS `TicketMASK`,
(
    SELECT
        swcustomfieldvalues.fieldvalue
    FROM
        swcustomfieldvalues,
        swcustomfields
    WHERE
        swcustomfieldvalues.customfieldid = swcustomfields.customfieldid
    AND swtickets.ticketid = swcustomfieldvalues.typeid
    AND swcustomfields.title = 'Member Company'
    ORDER BY
        swcustomfieldvalues.customfieldvalueid DESC
    LIMIT 1
) AS MemberCompany,
(
    SELECT
        swcustomfieldvalues.fieldvalue
    FROM
        swcustomfieldvalues,
        swcustomfields
    WHERE
        swcustomfieldvalues.customfieldid = swcustomfields.customfieldid
    AND swtickets.ticketid = swcustomfieldvalues.typeid
    AND swcustomfields.title = 'Member Name'
    ORDER BY
        swcustomfieldvalues.customfieldvalueid DESC
    LIMIT 1
) AS MemberName,
(
    SELECT
        swcustomfieldvalues.fieldvalue
    FROM
        swcustomfieldvalues,
        swcustomfields
    WHERE
        swcustomfieldvalues.customfieldid = swcustomfields.customfieldid
    AND swtickets.ticketid = swcustomfieldvalues.typeid
    AND swcustomfields.title = 'Chargeable'
    AND 
        swcustomfieldvalues.fieldvalue = '40'
    ORDER BY
        swcustomfieldvalues.customfieldvalueid ASC
    LIMIT 1
) AS `Chg`,
swtickets.`subject` AS `Subject`,
swtickets.departmenttitle AS Category,
FROM_UNIXTIME(
    swtickettimetracks.workdateline
) AS `workDateline`,
FROM_UNIXTIME(
    swtickettimetracks.dateline
) AS `dateline`,
swtickettimetracks.timespent AS `Time Spent`,
swtickets.timeworked AS `Time Worked`
    FROM
swtickets
    INNER JOIN swusers ON swtickets.userid = swusers.userid
    INNER JOIN swuserorganizations ON swuserorganizations.userorganizationid = swusers.userorganizationid
    INNER JOIN swtickettimetracks ON swtickettimetracks.ticketid = swtickets.ticketid
    WHERE
    swuserorganizations.organizationname = '%s'
    AND (
    swtickets.ticketstatustitle = 'Closed'
OR swtickets.ticketstatustitle = 'Completed'
    )

    AND FROM_UNIXTIME(`workDateline`) >= '%s' AND FROM_UNIXTIME(`workDateline`) <= '%s'

    ORDER BY `Ticket ID`,`Track ID`",
        $userOrganization,
        $startDate,
        $endDate
    );

正如我提到的，查询有效-但是它不能在两个日期之间正确返回记录。

但是，如果我对数据库运行以下简单查询：

SELECT swtickettimetracks.tickettimetrackid, 
swtickettimetracks.ticketid, 
swtickettimetracks.dateline, 
swtickettimetracks.timespent, 
swtickettimetracks.timebillable,
    FROM_UNIXTIME(swtickettimetracks.workdateline)

    FROM swtickettimetracks

    WHERE FROM_UNIXTIME(swtickettimetracks.workdateline) >= '2013-04-16' AND FROM_UNIXTIME(swtickettimetracks.workdateline) <= '2013-04-18'

我得到正确的日期范围返回。 救命？ 谢谢您的期待。 爱德华

Answer 1

除非您考虑过度，否则所有操作都在您不同的查询WHERE子句中。

您的复杂查询返回了错误的结果，

  (join conditions between other tables)
  AND swuserorganizations.organizationname = '%s'
  AND ( swtickets.ticketstatustitle = 'Closed'
     OR swtickets.ticketstatustitle = 'Completed' )
  AND FROM_UNIXTIME(`workDateline`) >= '%s' 
  AND FROM_UNIXTIME(`workDateline`) <= '%s'

您的其他查询有

FROM swtickettimetracks
WHERE FROM_UNIXTIME(swtickettimetracks.workdateline) >= '2013-04-16' 
  AND FROM_UNIXTIME(swtickettimetracks.workdateline) <= '2013-04-18'

所以我会考虑一些事情。 第一个有

FROM_UNIXTIME> ='％s'和FROM_UNIXTIME <='％s'

您确定'％s'值的格式正确以匹配'2013-04-16'和'2013-04-18'格式示例吗？

但更重要的是，您的第一个查询使用的是相同的日期范围（如果正确），但也仅获取特定组织名称AND（关闭或完成）记录的日期范围。 因此，如果第二个查询返回100条记录，但主查询仅返回70条记录，那么其他30条状态是否为已关闭/已完成或其他组织？ 此外，如果联接表没有匹配的ID，则将阻止返回具有无效ID的ID。 确认的唯一方法是更改​​这些表上的LEFT-JOIN语法并查看结果。