这是＃1644748的后续行动，我成功地回答了我自己的问题，但Quassnoi帮助我意识到这是一个错误的问题。他给了我一个适用于我的示例数据的解决方案，但我无法将其重新插入父存储过程，因为我在SQL 2005语法中失败了。因此，这是尝试描绘更广泛的图景，并询问我实际需要什么。
这是存储过程的一部分，它返回我继承的错误跟踪应用程序中的项目列表。有超过100个字段和26个连接，所以我只提取了大部分相关的位。
SELECT
tickets.ticketid,
tickets.tickettype,
tickets_tickettype_lu.tickettypedesc,
tickets.stage,
tickets.position,
tickets.sponsor,
tickets.dev,
tickets.qa,
DATEDIFF(DAY, ticket_history_assignment.savedate, GETDATE()) as 'daysinqueue'
FROM
dbo.tickets WITH (NOLOCK)
LEFT OUTER JOIN dbo.tickets_tickettype_lu WITH (NOLOCK) ON tickets.tickettype = tickets_tickettype_lu.tickettypeid
LEFT OUTER JOIN dbo.tickets_history_assignment WITH (NOLOCK) ON tickets_history_assignment.ticketid = tickets.ticketid
AND tickets_history_assignment.historyid = (
SELECT
MAX(historyid)
FROM
dbo.tickets_history_assignment WITH (NOLOCK)
WHERE
tickets_history_assignment.ticketid = tickets.ticketid
GROUP BY
tickets_history_assignment.ticketid
)
WHERE
tickets.sponsor = @sponsor
感兴趣的区域是daysinqueue子查询混乱。 tickets_history_assignment表大致如下
declare @tickets_history_assignment table (
historyid int,
ticketid int,
sponsor int,
dev int,
qa int,
savedate datetime
)
insert into @tickets_history_assignment values (1521402, 92774,20,14, 20, '2009-10-27 09:17:59.527')
insert into @tickets_history_assignment values (1521399, 92774,20,14, 42, '2009-08-31 12:07:52.917')
insert into @tickets_history_assignment values (1521311, 92774,100,14, 42, '2008-12-08 16:15:49.887')
insert into @tickets_history_assignment values (1521336, 92774,100,14, 42, '2009-01-16 14:27:43.577')
每当保存故障单时，赞助商，dev和qa的当前值都会存储在tickets_history_assignment表中，其中包含ticketid和时间戳。因此，某人可能会更改qa的值，但请保留赞助商。
基于所有这些条件，我想知道的是tickets_history_assignment表中记录的历史记录，其中赞助商值最后一次更改，以便我可以计算daysinqueue的值。如果将记录插入到历史记录表中，并且只有qa值已更改，我不希望该记录。因此，仅依靠MAX(historyid)对我不起作用。
Quassnoi提出了以下内容，它似乎与我的示例数据一起使用，但是我无法将其插入到更大的查询中，SQL Manager对于WITH语句的婊子。
;WITH rows AS
(
SELECT *, ROW_NUMBER() OVER (PARTITION BY ticketid ORDER BY savedate DESC) AS rn
FROM @Table
)
SELECT rl.sponsor, ro.savedate
FROM rows rl
CROSS APPLY
(
SELECT TOP 1 rc.savedate
FROM rows rc
JOIN rows rn
ON rn.ticketid = rc.ticketid
AND rn.rn = rc.rn + 1
AND rn.sponsor <> rc.sponsor
WHERE rc.ticketid = rl.ticketid
ORDER BY
rc.rn
) ro
WHERE rl.rn = 1
我昨天下午玩了它并且无处可去，因为我没有从根本上理解这里发生了什么，以及它应该如何适应更大的背景。
那么，任何参与者？
更新
好的，这就是整件事。我一直在切换一些表名和列名，试图简化一些事情，所以这里是完全未经编辑的混乱。
snip - 旧的错误代码
以下是错误：
Msg 102, Level 15, State 1, Procedure usp_GetProjectRecordsByAssignment, Line 159
Incorrect syntax near ';'.
Msg 102, Level 15, State 1, Procedure usp_GetProjectRecordsByAssignment, Line 179
Incorrect syntax near ')'.
行号当然不正确，但请参阅
;WITH rows AS
WHERE rl.rn = 1
)
分别
是否有额外超长问题的标签？
更新＃2
以下是可能需要此内容的任何人的完成查询：
CREATE PROCEDURE [dbo].[usp_GetProjectRecordsByAssignment]
(
@assigned numeric(18,0),
@assignedtype numeric(18,0)
)
AS
SET NOCOUNT ON
WITH rows AS
(
SELECT *, ROW_NUMBER() OVER (PARTITION BY recordid ORDER BY savedate DESC) AS rn
FROM projects_history_assignment
)
SELECT projects_records.recordid,
projects_records.recordtype,
projects_recordtype_lu.recordtypedesc,
projects_records.stage,
projects_stage_lu.stagedesc,
projects_records.position,
projects_position_lu.positiondesc,
CASE projects_records.clientrequested
WHEN '1' THEN 'Yes'
WHEN '0' THEN 'No'
END AS clientrequested,
projects_records.reportingmethod,
projects_reportingmethod_lu.reportingmethoddesc,
projects_records.clientaccess,
projects_clientaccess_lu.clientaccessdesc,
projects_records.clientnumber,
projects_records.project,
projects_lu.projectdesc,
projects_records.version,
projects_version_lu.versiondesc,
projects_records.projectedversion,
projects_version_lu_projected.versiondesc AS projectedversiondesc,
projects_records.sitetype,
projects_sitetype_lu.sitetypedesc,
projects_records.title,
projects_records.module,
projects_module_lu.moduledesc,
projects_records.component,
projects_component_lu.componentdesc,
projects_records.loginusername,
projects_records.loginpassword,
projects_records.assistedusername,
projects_records.browsername,
projects_browsername_lu.browsernamedesc,
projects_records.browserversion,
projects_records.osname,
projects_osname_lu.osnamedesc,
projects_records.osversion,
projects_records.errortype,
projects_errortype_lu.errortypedesc,
projects_records.gsipriority,
projects_gsipriority_lu.gsiprioritydesc,
projects_records.clientpriority,
projects_clientpriority_lu.clientprioritydesc,
projects_records.scheduledstartdate,
projects_records.scheduledcompletiondate,
projects_records.projectedhours,
projects_records.actualstartdate,
projects_records.actualcompletiondate,
projects_records.actualhours,
CASE projects_records.billclient
WHEN '1' THEN 'Yes'
WHEN '0' THEN 'No'
END AS billclient,
projects_records.billamount,
projects_records.status,
projects_status_lu.statusdesc,
CASE CAST(projects_records.assigned AS VARCHAR(5))
WHEN '0' THEN 'N/A'
WHEN '10000' THEN 'Unassigned'
WHEN '20000' THEN 'Client'
WHEN '30000' THEN 'Tech Support'
WHEN '40000' THEN 'LMI Tech Support'
WHEN '50000' THEN 'Upload'
WHEN '60000' THEN 'Spider'
WHEN '70000' THEN 'DB Admin'
ELSE rtrim(users_assigned.nickname) + ' ' + rtrim(users_assigned.lastname)
END AS assigned,
CASE CAST(projects_records.assigneddev AS VARCHAR(5))
WHEN '0' THEN 'N/A'
WHEN '10000' THEN 'Unassigned'
ELSE rtrim(users_assigneddev.nickname) + ' ' + rtrim(users_assigneddev.lastname)
END AS assigneddev,
CASE CAST(projects_records.assignedqa AS VARCHAR(5))
WHEN '0' THEN 'N/A'
WHEN '10000' THEN 'Unassigned'
ELSE rtrim(users_assignedqa.nickname) + ' ' + rtrim(users_assignedqa.lastname)
END AS assignedqa,
CASE CAST(projects_records.assignedsponsor AS VARCHAR(5))
WHEN '0' THEN 'N/A'
WHEN '10000' THEN 'Unassigned'
ELSE rtrim(users_assignedsponsor.nickname) + ' ' + rtrim(users_assignedsponsor.lastname)
END AS assignedsponsor,
projects_records.clientcreated,
CASE projects_records.clientcreated
WHEN '1' THEN 'Yes'
WHEN '0' THEN 'No'
END AS clientcreateddesc,
CASE projects_records.clientcreated
WHEN '1' THEN rtrim(clientusers_createuser.firstname) + ' ' + rtrim(clientusers_createuser.lastname) + ' (Client)'
ELSE rtrim(users_createuser.nickname) + ' ' + rtrim(users_createuser.lastname)
END AS createuser,
projects_records.createdate,
projects_records.savedate,
projects_resolution.sitesaffected,
projects_sitesaffected_lu.sitesaffecteddesc,
DATEDIFF(DAY, projects_history_assignment.savedate, GETDATE()) as 'daysinqueue',
projects_records.iOnHitList,
projects_records.changetype
FROM
dbo.projects_records WITH (NOLOCK)
LEFT OUTER JOIN dbo.projects_recordtype_lu WITH (NOLOCK) ON projects_records.recordtype = projects_recordtype_lu.recordtypeid
LEFT OUTER JOIN dbo.projects_stage_lu WITH (NOLOCK) ON projects_records.stage = projects_stage_lu.stageid
LEFT OUTER JOIN dbo.projects_position_lu WITH (NOLOCK) ON projects_records.position = projects_position_lu.positionid
LEFT OUTER JOIN dbo.projects_reportingmethod_lu WITH (NOLOCK) ON projects_records.reportingmethod = projects_reportingmethod_lu.reportingmethodid
LEFT OUTER JOIN dbo.projects_lu WITH (NOLOCK) ON projects_records.project = projects_lu.projectid
LEFT OUTER JOIN dbo.projects_version_lu WITH (NOLOCK) ON projects_records.version = projects_version_lu.versionid
LEFT OUTER JOIN dbo.projects_version_lu projects_version_lu_projected WITH (NOLOCK) ON projects_records.projectedversion = projects_version_lu_projected.versionid
LEFT OUTER JOIN dbo.projects_sitetype_lu WITH (NOLOCK) ON projects_records.sitetype = projects_sitetype_lu.sitetypeid
LEFT OUTER JOIN dbo.projects_module_lu WITH (NOLOCK) ON projects_records.module = projects_module_lu.moduleid
LEFT OUTER JOIN dbo.projects_component_lu WITH (NOLOCK) ON projects_records.component = projects_component_lu.componentid
LEFT OUTER JOIN dbo.projects_browsername_lu WITH (NOLOCK) ON projects_records.browsername = projects_browsername_lu.browsernameid
LEFT OUTER JOIN dbo.projects_osname_lu WITH (NOLOCK) ON projects_records.osname = projects_osname_lu.osnameid
LEFT OUTER JOIN dbo.projects_errortype_lu WITH (NOLOCK) ON projects_records.errortype = projects_errortype_lu.errortypeid
LEFT OUTER JOIN dbo.projects_resolution WITH (NOLOCK) ON projects_records.recordid = projects_resolution.recordid
LEFT OUTER JOIN dbo.projects_sitesaffected_lu WITH (NOLOCK) ON projects_resolution.sitesaffected = projects_sitesaffected_lu.sitesaffectedid
LEFT OUTER JOIN dbo.projects_gsipriority_lu WITH (NOLOCK) ON projects_records.gsipriority = projects_gsipriority_lu.gsipriorityid
LEFT OUTER JOIN dbo.projects_clientpriority_lu WITH (NOLOCK) ON projects_records.clientpriority = projects_clientpriority_lu.clientpriorityid
LEFT OUTER JOIN dbo.projects_status_lu WITH (NOLOCK) ON projects_records.status = projects_status_lu.statusid
LEFT OUTER JOIN dbo.projects_clientaccess_lu WITH (NOLOCK) ON projects_records.clientaccess = projects_clientaccess_lu.clientaccessid
LEFT OUTER JOIN dbo.users users_assigned WITH (NOLOCK) ON projects_records.assigned = users_assigned.userid
LEFT OUTER JOIN dbo.users users_assigneddev WITH (NOLOCK) ON projects_records.assigneddev = users_assigneddev.userid
LEFT OUTER JOIN dbo.users users_assignedqa WITH (NOLOCK) ON projects_records.assignedqa = users_assignedqa.userid
LEFT OUTER JOIN dbo.users users_assignedsponsor WITH (NOLOCK) ON projects_records.assignedsponsor = users_assignedsponsor.userid
LEFT OUTER JOIN dbo.users users_createuser WITH (NOLOCK) ON projects_records.createuser = users_createuser.userid
LEFT OUTER JOIN dbo.clientusers clientusers_createuser WITH (NOLOCK) ON projects_records.createuser = clientusers_createuser.userid
LEFT OUTER JOIN dbo.projects_history_assignment WITH (NOLOCK) ON projects_history_assignment.recordid = projects_records.recordid
AND projects_history_assignment.historyid = (
SELECT ro.historyid
FROM rows rl
CROSS APPLY
(
SELECT TOP 1 rc.historyid
FROM rows rc
JOIN rows rn
ON rn.recordid = rc.recordid
AND rn.rn = rc.rn + 1
AND rn.assigned <> rc.assigned
WHERE rc.recordid = rl.recordid
ORDER BY
rc.rn
) ro
WHERE rl.rn = 1
AND rl.recordid = projects_records.recordid
)
WHERE
(@assignedtype='0' and projects_records.assigned = @assigned)
OR (@assignedtype='1' and projects_records.assigneddev = @assigned)
OR (@assignedtype='2' and projects_records.assignedqa = @assigned)
OR (@assignedtype='3' and projects_records.assignedsponsor = @assigned)
OR (@assignedtype='4' and projects_records.createuser = @assigned)
答案 0 :(得分：0)
好吧，如果该查询无效 - 您可以始终考虑tickets_history_assignment表上的触发器。您可以使用INSTEAD OF INSERT, UPDATE在进行任何更改之前触发，因此您可以完全控制将要更改的内容以及要执行的操作。
答案 1 :(得分：0)
WITH rows AS
(
SELECT *, ROW_NUMBER() OVER (PARTITION BY ticketid ORDER BY savedate DESC) AS rn
FROM @Table
)
SELECT projects_records.recordid,
projects_records.recordtype,
/* skipped */
AND projects_history_assignment.historyid = (
SELECT ro.historyid
FROM rows rl
CROSS APPLY
(
SELECT TOP 1 rc.savedate
FROM rows rc
JOIN rows rn
ON rn.recordid = rc.recordid
AND rn.rn = rc.rn + 1
AND rn.assigned <> rc.assigned
WHERE rc.recordid = rl.recordid
ORDER BY
rc.rn
) ro
WHERE rl.rn = 1
AND rl.recordid = projects_records.recordid
)