Question

嗨我有像

这样的字符串

'spla - asqlserver 2008 #P1           Q TY 1
:SPLA-WINSV  QWSRSTDA#P29- 9 QTY2:SP
LA-WINSVMSTDA #P29-999QTY2:SPLA-WINSVRSTD-sqlserver 2008#P 9  9 9 QT Y3:SPLA-WINSVRSTD #P 
9-999QTY4 : SPLA-WINSVRSvr3# 59-99 Q TY5:SP -WI  Sa 1 #P    999 Q T Y6'

我写了像

这样的函数

ALTER function [dbo].[string_splitting_WORKING]
(
 @STR VARCHAR(MAX),
 @DELIMITER CHAR(1)

)
RETURNS @Result Table
(
Output varchar(max)
)
as 
begin
DECLARE @Index int
declare @Output varchar(max)
select @index = 1
IF @STR IS NULL RETURN
WHILE @Index ! = 0
   BEGIN
      SELECT @Index = CHARINDEX(@Delimiter, @Str)
        IF @Index != 0
            SELECT @Output = LEFT(@Str, @Index - 1)
            --ltrim(ltrim(substring(@Str,0,charindex('#',@Str)))) 
            --LEFT(@Str, @Index - 1)
        ELSE
            SELECT @Output = @Str
        INSERT INTO @Result(Output) VALUES (@Output)
        SELECT @Str = RIGHT(@Str, LEN(@Str) - @Index)
        IF LEN(@Str) = 0 
        BREAK
    END
    RETURN
END;

当你将字符串传递给像这样的函数

时

select * from [dbo].[string_splitting_WORKING]('SAQa # P 1      9 s-9    9 9 9  1:SPLA-WINSVRSTDA#P29-999QTY2
:SPLA-WINS VMSTDA#P 29-99 9Q TY2:SPLA-WggaerINSVRSTD# P3 9-9 99 9 Q TY3:SPLA-WINSVRSTD#P49-9999QTY4:SPLA-WINSVRSvr3#P59-9999QTY5:SPLA-WINSVRSat1#P69-9999QTY6 :',':')

我正在获得这样的输出

SAQa # P 1      9 s-9    9 9 9  1
SPLA-WINSVRSTDA#P29-999QTY2  
SPLA-WINS VMSTDA#P 29-99 9Q TY2
SPLA-WggaerINSVRSTD# P3 9-9 99 9 Q TY3
SPLA-WINSVRSTD#P49-9999QTY4
SPLA-WINSVRSvr3#P59-9999QTY5
SPLA-WINSVRSat1#P69-9999QTY6

我写了另一个函数

ALTER FUNCTION [dbo].[RowStringSplit] 
( 
        @RowData varchar(8000), 
        @Delimiter varchar(5) 
)   
RETURNS @RtnValue table  
(      ServerName varchar(1000),
        PoNumber varchar(500),
        Qty varchar(100))  
AS   
BEGIN  
        Declare @Cnt int 
        Set @Cnt = 1 

        While (Charindex(@Delimiter,@RowData)>0) 

     Begin 
                Insert Into @RtnValue (Servername,PoNumber)--,Qty) 

                Select  ServerName = ltrim(ltrim(Substring(@RowData,0,Charindex('#',@RowData)))),
                        --PoNumber   = ltrim(ltrim(substring(@RowData,charindex('#',@RowData)+1,CHARINDEX(':',@RowData)-1))) --1
                        --PoNumber   =  substring(@RowData,charindex('#',@RowData)+1,len(@RowData))                          --2

                        PoNumber = substring(@RowData,charindex('#',@RowData)+1,charindex('QTY',REVERSE(@RowData))+ @Cnt)--3

                          --PoNumber = case charindex('#',@RowData),1) when 0 then @RowData
                          --           else
                          --               substring(@RowData,1,charindex('QTY',@RowData,1)-1 

                          --Qty      = substring(@RowData,charindex('QTY',@RowData),Charindex(':',@RowData)-26)

             Set @RowData = Substring(@RowData,Charindex(@Delimiter,@RowData)+1,len(@RowData))
             Set @Cnt = @Cnt + 1 
      End 
       Insert  Into @RtnValue (ServerName)                                  
        Select Data = ltrim(rtrim(@RowData))
        Return 

END

我正在获得这样的输出

     ServerName              PoNumber  Qty
------------------------------------------------
spla - asqlserver 2008        P        NULL
SPLA-WINSV  QWSRSTDA          P2       NULL
SP  LA-WINSVMSTDA             P29      NULL
SPLA-WINSVRSTD-sqlserver 2008 P 9      NULL
SPLA-WINSVRSTD                P   9    NULL
SPLA-WINSVRSvr3                59-99   NULL
SP -WI  Sa 1                  P    99  NULL

但要求是如果我从serverName列中删除数据它必须显示空白和If 我增加了serverName列中的数据它应该增加但我得到了但问题是如果我删除或添加＃之后的数据，直到从p到qty的qty，重置它没有准确到最后我只需要在qty列中的数字

您可以通过使用函数或过程来分割该字符串来帮助我获得正确的输出

来自anand的

Answer 1

请试试这个。看起来它正在为输入字符串返回正确的输出。

CREATE FUNCTION test (@a VARCHAR(1000))
RETURNS @RtnValue table  (
    ServerName varchar(1000),
    PoNumber varchar(500),
    Qty varchar(100)
)
AS 
BEGIN

    DECLARE @part1 VARCHAR(1000)
    DECLARE @part2 VARCHAR(1000)
    DECLARE @part3 VARCHAR(1000)
    DECLARE @i INT


    SELECT @a = LTRIM(RTRIM(@a))
    SELECT @i = PATINDEX('%#%', @a)
    IF @i = 0 SELECT @i = LEN(@a)
    SELECT @part1 = LEFT(@a, @i - 1)

    SELECT @a = RIGHT(@a, LEN(@a) - @i)

    SELECT @a = REPLACE(@a, ' ', '')
    SELECT @i = PATINDEX('%QTY%', @a)
    IF @i > 0
    BEGIN
        SELECT @part2 = LEFT(@a, @i - 1)
        SELECT @part3 = RIGHT(@a, LEN(@a) - LEN(@part2) - 3)
    END
    ELSE 
        SELECT @part2 = @a

    INSERT @RtnValue
    SELECT @part1, @part2, @part3

    RETURN
END
GO

与名为string_splitting_WORKING的函数

一起执行

select  t.*
from [dbo].[string_splitting_WORKING]('spla - asqlserver 2008 #P1           Q TY 1
:SPLA-WINSV  QWSRSTDA#P29- 9 QTY2:SP
LA-WINSVMSTDA #P29-999QTY2:SPLA-WINSVRSTD-sqlserver 2008#P 9  9 9 QT Y3:SPLA-WINSVRSTD #P 
9-999QTY4 : SPLA-WINSVRSvr3# 59-99 Q TY5:SP -WI  Sa 1 #P    999 Q T Y6'
,':')
CROSS APPLY dbo.test([Output]) t

输出：

ServerName                     PoNumber Qty
------------------------------------------------
spla - asqlserver 2008          P1            1  
SPLA-WINSV  QWSRSTDA            P29-9         2
SP  LA-WINSVMSTDA               P29-999       2
SPLA-WINSVRSTD-sqlserver 2008   P999          3
SPLA-WINSVRSTD                  P  9-999      4
SPLA-WINSVRSvr3                 59-99         5
SP -WI  Sa 1                    P999          6

用光标拆分行数据并将数据插入不同的列

1 个答案: