Ошибка конверсии при преобразовании из символьной строки в ошибку uniqueidentifier в SQL Server

Я получаю сообщение об ошибке "Ошибка конверсии при преобразовании из символьной строки в uniqueidentifier" и, наконец, в конце моей веревки. Я сузил свою проблему как можно меньше, сохраняя ошибку в такте. Сначала установите разделитель CSV, если вы хотите воспроизвести:

http://www.sqlservercentral.com/articles/Tally+Table/72993/

Вот тестовый код. Я на SQL 2008R2, но в базе данных, совместимой с SQL 2005:

IF  EXISTS (SELECT * FROM sys.objects WHERE object_id = OBJECT_ID(N'[dbo].[ZZZTESTTABLE]') AND type in (N'U'))
DROP TABLE [dbo].[ZZZTESTTABLE]
GO

CREATE TABLE [dbo].[ZZZTESTTABLE](
    [Col1] [uniqueidentifier] NOT NULL,
 CONSTRAINT [PK_ZZZTESTTABLE] PRIMARY KEY CLUSTERED 
(
    [Col1] ASC
)WITH (PAD_INDEX  = OFF, STATISTICS_NORECOMPUTE  = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS  = ON, ALLOW_PAGE_LOCKS  = ON) ON [PRIMARY]
) ON [PRIMARY]

-- Test table that I would like to check my values against
insert dbo.ZZZTESTTABLE(Col1) values('85B049B7-CDD0-4995-B582-5A74523039C0')

-- Test string that will be split into table in the DelimitedSplit8k function
declare @temp varchar(max) = '918E809E-EA7A-44B5-B230-776C42594D91,6F8DBB54-5159-4C22-9B0A-7842464360A5'

-- I'm trying to delete all data in the ZZZTESTTABLE that is not in my string but I get the error 
delete dbo.ZZZTESTTABLE
where Col1 not in 
(
-- ERROR OCCURS HERE
    select cast(Item as uniqueidentifier) from dbo.DelimitedSplit8K(@temp, ',')
)

ЗДЕСЬ источник для функции DelimitedSplit8K, поэтому вам не нужно ее искать и находить:

CREATE FUNCTION dbo.DelimitedSplit8K
--===== Define I/O parameters
        (@pString VARCHAR(8000), @pDelimiter CHAR(1))
RETURNS TABLE WITH SCHEMABINDING AS
 RETURN
--===== "Inline" CTE Driven "Tally Table" produces values from 0 up to 10,000...
     -- enough to cover VARCHAR(8000)
  WITH E1(N) AS (
                 SELECT 1 UNION ALL SELECT 1 UNION ALL SELECT 1 UNION ALL 
                 SELECT 1 UNION ALL SELECT 1 UNION ALL SELECT 1 UNION ALL 
                 SELECT 1 UNION ALL SELECT 1 UNION ALL SELECT 1 UNION ALL SELECT 1
                ),                          --10E+1 or 10 rows
       E2(N) AS (SELECT 1 FROM E1 a, E1 b), --10E+2 or 100 rows
       E4(N) AS (SELECT 1 FROM E2 a, E2 b), --10E+4 or 10,000 rows max
 cteTally(N) AS (--==== This provides the "zero base" and limits the number of rows right up front
                     -- for both a performance gain and prevention of accidental "overruns"
                 SELECT 0 UNION ALL
                 SELECT TOP (DATALENGTH(ISNULL(@pString,1))) ROW_NUMBER() OVER (ORDER BY (SELECT NULL)) FROM E4
                ),
cteStart(N1) AS (--==== This returns N+1 (starting position of each "element" just once for each delimiter)
                 SELECT t.N+1
                   FROM cteTally t
                  WHERE (SUBSTRING(@pString,t.N,1) = @pDelimiter OR t.N = 0) 
                )
--===== Do the actual split. The ISNULL/NULLIF combo handles the length for the final element when no delimiter is found.
 SELECT ItemNumber = ROW_NUMBER() OVER(ORDER BY s.N1),
        Item       = SUBSTRING(@pString,s.N1,ISNULL(NULLIF(CHARINDEX(@pDelimiter,@pString,s.N1),0)-s.N1,8000))
   FROM cteStart s
;

Ответы

declare @temp varchar(max) = '918E809E-EA7A-44B5-B230-776C42594D91,6F8DBB54-5159-4C22-9B0A-7842464360A5'    
select cast(Item as uniqueidentifier) from dbo.DelimitedSplit8K(@temp, ',')

select cast(Item as uniqueidentifier) as Item into #temp from dbo.DelimitedSplit8K(@temp, ',')

-- I'm trying to delete all data in the ZZZTESTTABLE that is not in my string but I get the error 
delete dbo.ZZZTESTTABLE
where Col1 not in 
(
-- ERROR OCCURS HERE
    --select cast(Item as uniqueidentifier) from dbo.DelimitedSplit8K(@temp, ',')
    select Item from #temp
)

CREATE FUNCTION dbo.DelimitedSplit8K
...
cteStart(N1, nullify) AS (--==== This returns N+1 (starting position of each "element" just once for each delimiter)
                 SELECT t.N+1, 
                    case when (SUBSTRING(@pString,t.N,1) = @pDelimiter OR t.N = 0) then 1 else 0 end
                   FROM cteTally t
                  WHERE (SUBSTRING(@pString,t.N,1) = @pDelimiter OR t.N = 0) 
                )
--===== Do the actual split. The ISNULL/NULLIF combo handles the length for the final element when no delimiter is found.
 SELECT ItemNumber = ROW_NUMBER() OVER(ORDER BY s.N1),
        Item       = case s.nullify
            when 1 then SUBSTRING(@pString,s.N1,ISNULL(NULLIF(CHARINDEX(@pDelimiter,@pString,s.N1),0)-s.N1,8000))
            else null
            end
   FROM cteStart s;
go

where Col1 not in 
(
-- ERROR OCCURS HERE
    select cast(Item as uniqueidentifier) from dbo.DelimitedSplit8K(@temp, ',')
)

where cast(Col1 as varchar(64)) not in 
(
    select Item 
    from dbo.DelimitedSplit8K(@temp, ',')
)

delete dbo.ZZZTESTTABLE
WHERE Col1 in
(
    select Z.Col1
    from dbo.ZZZTESTTABLE Z
    LEFT JOIN dbo.DelimitedSplit8K(@temp, ',') S on S.Item = Z.Col1
    where S.Item is null
)
OPTION (force order)