3

我有一张桌子

SET ANSI_NULLS ON
GO

SET QUOTED_IDENTIFIER ON
GO

CREATE TABLE [dbo].[TestAB](
    [A] [int] IDENTITY(1,1) NOT NULL,
    [B] [nvarchar](10) NULL,
 CONSTRAINT [PK_TestAB] PRIMARY KEY CLUSTERED 
(
    [A] 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

像这样的价值观

INSERT INTO [TestAB]([B]) 
    VALUES('A1');

INSERT INTO [TestAB]([B]) 
    VALUES('A2');

INSERT INTO [TestAB]([B]) 
    VALUES('A5');

INSERT INTO [TestAB]([B]) 
    VALUES('A4');

INSERT INTO [TestAB]([B]) 
    VALUES('AA5');

INSERT INTO [TestAB]([B]) 
    VALUES('A9');

INSERT INTO [TestAB]([B]) 
    VALUES('C7');

INSERT INTO [TestAB]([B]) 
    VALUES('D8');

INSERT INTO [TestAB]([B]) 
    VALUES('D-9');

INSERT INTO [TestAB]([B]) 
    VALUES('R$10');

表选择

表设计

我想去掉非数字字符并将 nvarchar 数字转换为 int 然后比较它们的位置!=

4

3 回答 3

2

您没有确切指定应返回哪些行,但我认为这可以满足您的要求:

select A, B
from dbo.TestAB
where cast(replace(B, replace(B, cast(A as nvarchar(10)), ''), '') as int) <> A
于 2013-04-30T21:22:45.957 回答
1

这是Pinal Dave 的 UDF的递归 CTE版本,尽管我们正在剥离除数字之外的任何内容:

;with digitsOnly as (
    select A, B, B as DigitB, patindex(N'%[^0-9]%', B) as IncorrectCharLoc
    from TestAB
    union all
    select A, B, cast(stuff(DigitB, IncorrectCharLoc, 1, N'') as nvarchar(10))
        , patindex(N'%[^0-9]%', stuff(DigitB, IncorrectCharLoc, 1, N''))
    from digitsOnly
    where IncorrectCharLoc > 0
)
select A, B, DigitB
from digitsOnly
where IncorrectCharLoc = 0 -- Get last iteration
    and cast(A as nvarchar(10)) <> DigitB -- Final compare
order by A
option (maxrecursion 0)

/*
    A           B          DigitB
    ----------- ---------- ----------
    3           A5         5
    6           A9         9
*/
于 2013-04-30T21:41:33.313 回答
1
Select A,B,Case when A<>B then 0 else 1 end
from
(
select
A,
Cast(
Left(SubString(B, PatIndex('%[0-9.-]%', B), 100),
     PatIndex('%[^0-9.-]%', SubString(B, PatIndex('%[0-9.-]%', B), 100)+'_' )-1)
as int) as B
from TestAB
) aa 
where A<>B

SQL小提琴

于 2013-04-30T21:42:47.707 回答