Я «случайный» администратор баз данных, относительно неопытный и сбитый с толку этой проблемой.
Запуск MS SQL Server 2012. Проблема с этим оператором UPDATE:
UPDATE dbo.tAccts SET
Ticket = 'ARP.ExGE'
, Method = 'smtp'
, AcctOwner = 'r00417819'
, DisplayName = '~AppLight HBSFax-Inactive'
, Destination = 'r00417819@mail.ad.ge.com'
, UpdatedBy = SYSTEM_USER
, UpdatedOn = CAST(GetDate() AS DATE)
FROM dbo.vReclaimable
WHERE OHR_EmpStatus <> 'A'
Который должен обновлять только те строки в таблице tAccts, которые возвращаются представлением vReclaimable.
Представление vReclaimable основано на таблице tAccts и возвращает подмножество строк в tAccts.
Когда я запускаю его, он завершается с ошибкой уникального ключа:
(0 row(s) affected)
Msg 2627, Level 14, State 1, Line 67
Violation of UNIQUE KEY constraint 'UQ__tAccounts_DNIS.Method.Destination.Phones'. Cannot insert duplicate key in object 'dbo.tAccts'. The duplicate key value is (68497, smtp, r00417819@mail.ad.ge.com, 800-905-8793, none).
The statement has been terminated.
Справедливо, таблица tAccts имеет ограничение уникального ключа:
CONSTRAINT [UQ__tAccounts_DNIS.Method.Destination.Phones] UNIQUE NONCLUSTERED
(
[DNIS] ASC,[Method] ASC,[Destination] ASC,[Phone_TF] ASC,[Phone_Local] ASC
)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON)
Но вот странная вещь. Если я запускаю эти два запроса:
select 'tAccts table', dnis, method, destination, phone_tf, phone_local from tAccts where dnis=68497
select 'vReclaimable view', dnis, method, destination, phone_tf, phone_local, daysidle from vReclaimable where dnis=68497
Первая возвращает две строки (как и ожидалось):
(No column name) dnis method destination phone_tf phone_local
tAccts table 68497 ftp ftp://faxuser@ap1plm02cige/appliances 800-905-8793 none
tAccts table 68497 unc \\\\for4as01applge\\cfs_portfolio\\cfs_faxdocs 800-905-8793 none
а вторая возвращает 0 строк (как и ожидалось).
Если «FROM vReclaimable WHERE OHR_EmpStatus <> 'A'» возвращает 0 строк, почему UPDATE пытается обновить строку, где DNIS = 68497?
(Надеюсь, я описал это адекватно. У меня такое чувство, что я упускаю что-то очевидное)
USE [TEST-GEAFax_arley_NEW]
GO
/****** Object: Table [dbo].[tAccts] Script Date: 12/9/2015 1:39:41 PM ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
SET ANSI_PADDING ON
GO
CREATE TABLE [dbo].[tAccts](
[Ticket] [varchar](30) NOT NULL,
[Method] [varchar](15) NOT NULL,
[AcctOwner] [varchar](15) NOT NULL,
[DisplayName] [varchar](75) NOT NULL,
[Destination] [varchar](75) NOT NULL,
[DNIS] [varchar](20) NOT NULL,
[DNIS2] [varchar](20) NULL,
[Phone_TF] [varchar](30) NOT NULL,
[Phone_Local] [varchar](30) NOT NULL,
[Phone_PBX] [varchar](255) NOT NULL,
[UpdatedBy] [varchar](50) NOT NULL,
[UpdatedOn] [date] NOT NULL,
[FaxNotes] [varchar](255) NULL,
[TelcomNotes] [varchar](255) NULL,
[AcctID] [int] IDENTITY(0,1) NOT NULL,
CONSTRAINT [PK__tAccounts_AcctID] PRIMARY KEY CLUSTERED
(
[AcctID] ASC
)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY],
CONSTRAINT [UQ__tAccounts_DNIS.Method.Destination.Phones] UNIQUE NONCLUSTERED
(
[DNIS] ASC,
[Method] ASC,
[Destination] ASC,
[Phone_TF] ASC,
[Phone_Local] ASC
)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY]
) ON [PRIMARY]
GO
SET ANSI_PADDING OFF
GO
---------------------------------------------------------------------------------
USE [TEST-GEAFax_arley_NEW]
GO
/****** Object: View [dbo].[vReclaimable] Script Date: 12/9/2015 1:39:57 PM ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
/***********************************************************************
* Written By : N. Arley Dealey (200018252
* Written On :
* Updated By :
* Updated On :
* Description : Returns data from tAccts, vRxAl, vWLT_AllGE
* Notes :
***********************************************************************/
CREATE VIEW [dbo].[vReclaimable] AS
SELECT
a.Ticket
, a.Method
, a.AcctOwner
, a.DisplayName
, a.Destination
, a.DNIS
, a.DNIS2
, a.Phone_TF
, a.Phone_Local
, a.Phone_PBX
, a.UpdatedBy
, a.UpdatedOn
, a.FaxNotes
, a.TelcomNotes
, a.AcctID
, COUNT(jt.JobID) AS 'FaxesRcvd'
, CAST(MIN(jt.TimeStamp_UTC) AS DATE) AS 'FirstRcvd'
, CAST(MAX(jt.TimeStamp_UTC) AS DATE) AS 'LastRcvd'
, DATEDIFF(dd, MAX(jt.TimeStamp_UTC), GETDATE()) AS 'DaysIdle'
, o.OHR_EmpSSO
, o.OHR_EmpStatus
, o.OHR_EmpName
, o.OHR_EmpTitle
, o.OHR_BizIndustryGroup
, o.OHR_BizSegment
, o.OHR_BizUnit
, o.OHR_BizDept
, o.OHR_BizDomain
FROM
dbo.tAccts AS a
LEFT OUTER JOIN dbo.tAccts_Retain AS r ON (a.AcctID = r.AcctID)
LEFT OUTER JOIN dbo.vWLT_AllGE AS o ON (a.AcctOwner = o.OHR_EmpSSO)
LEFT OUTER JOIN dbo.vRxAll AS jt ON (a.DNIS = jt.DNIS)
WHERE ( 1 -- place holder, has no effect
AND r.RetainID IS NULL -- out of scope: in Retain table
AND a.Method = 'smtp' -- out of scope: ftp, unc, cifs, printers
AND a.Phone_Local NOT LIKE '216-%' -- out of scope: NELA numbers
AND a.AcctOwner <> 'r00417819' -- out of scope: reclaimed numbers
AND a.AcctOwner <> 'r00336832' -- out of scope: never assigned numbers
AND a.AcctOwner <> 'r00971729' -- out of scope: invalid numbers
AND a.Destination NOT LIKE 'g%@mail.ad.ge.com' -- out of scope: distribution lists
AND a.Destination NOT LIKE 'r%@mail.ad.ge.com' -- out of scope: shared mailboxes
)
GROUP BY
a.DNIS
-- remaining columns are just for syntax reasons
, a.Ticket, a.Method, a.AcctOwner, a.DisplayName, a.Destination, a.DNIS2, a.Phone_TF, a.Phone_Local, a.Phone_PBX, a.UpdatedBy, a.UpdatedOn, a.FaxNotes, a.TelcomNotes, a.AcctID
, o.OHR_EmpSSO, o.OHR_EmpStatus, o.OHR_EmpName, o.OHR_EmpTitle
, o.OHR_BizIndustryGroup, o.OHR_BizSegment, o.OHR_BizUnit, o.OHR_BizDept, o.OHR_BizDomain
GO
OHR_EmpStatus
ли столбец таблицы, вид или оба?
CREATE VIEW
утверждение.