如何在SQL Server中使用逗號和數字？

Question

我有像（1100,2014,4000）的字符串字段我想分離逗號和總結每個數字彼此例如： 1100,2014,4000

1 1 0 0 
2 0 1 4 
4 0 0 0 

結果

@first =1+2+4=7 
@second= 1+0+0=1 
@third=0+1+0=1 
@forth=0+4+0=4 

Answer 1

試試這個，

DECLARE @Table TABLE(Value VARCHAR(20)) 
INSERT INTO @Table VALUES('1100,2014,4000') 

DECLARE @First INT, @Second INT, @Third INT, @Fourth INT 

SELECT Split.a.value('.', 'VARCHAR(100)') AS Data 
INTO #temp 
FROM 
(
    SELECT CAST ('<M>' + REPLACE(Value, ',', '</M><M>') + '</M>' AS XML) AS Value 
    FROM @Table 
) AS A CROSS APPLY Value.nodes ('/M') AS Split(a); 


SELECT @First=SUM(Data/1000) 
    ,@Second=SUM((Data%1000)/100) 
    ,@Third=SUM((Data%100)/10) 
    ,@Fourth=SUM((Data%10)) 
FROM #temp 

SELECT @First, @Second, @Third, @Fourth 

DROP TABLE #temp 

Answer 2

這可能有助於獲得值之和是這樣的：

SELECT SUM(CAST(SUBSTRING(X.A, 1, 1) AS INT)) first, 
    SUM(CAST(SUBSTRING(X.A, 2, 1) AS INT)) second, 
    SUM(CAST(SUBSTRING(X.A, 3, 1) AS INT)) third, 
    SUM(CAST(SUBSTRING(X.A, 4, 1) AS INT)) fourth 
FROM (SELECT '1100' A 
     UNION 
     SELECT '2014' A 
     UNION 
     SELECT '4000' A 
    ) X 

Answer 3

爲此，首先，採用傑夫MODEN的DelimitedSplit8K（因爲我不是k現在是什麼版本的SQl服務器）。其次，你的邏輯看起來有點過分。你說變量@third的值是0+4+0，但是，這是整數的第4個字符。另外，這個假設所有整數是4個字符長。

WITH VTE AS(
    SELECT * 
    FROM (VALUES('1100,2014,4000')) v(DSn)) --This is your samnple data 
SELECT SUM(CONVERT(int,SUBSTRING(RIGHT('0000' + DS.Item,4),N.I, 1))) AS [Sum] 
FROM VTE 
    CROSS APPLY dbo.DelimitedSplit8K (VTE.DSn,',') DS 
    CROSS APPLY (VALUES (1),(2),(3),(4)) N(I) 
GROUP BY N.I; 

Answer 4

您可以使用此函數將所有項目排在表格中。

您可以創建此功能，並嘗試再 SELECT * FROM dbo.string2table（ '1243,1234,2343'， ''）

CREATE FUNCTION [dbo].[string2table] 
(
    @string VARCHAR(MAX), 
    @delimiter CHAR(1) 
) 
RETURNS @output TABLE(
    data VARCHAR(256) 
) 
BEGIN 

    DECLARE @start INT, @end INT 
    SELECT @start = 1, @end = CHARINDEX(@delimiter, @string) 

    WHILE @start < LEN(@string) + 1 BEGIN 
     IF @end = 0 
      SET @end = LEN(@string) + 1 

     INSERT INTO @output (data) 
     VALUES(SUBSTRING(@string, @start, @end - @start)) 
     SET @start = @end + 1 
     SET @end = CHARINDEX(@delimiter, @string, @start) 
    END 

    RETURN 

END 

Answer 5

繼具有多個SQL CTE表達式的Select語句可以在numbers table function和SQL split string function的幫助下用於使用「，」分隔數字列表，作爲分隔符

對於進一步分割各數到它的標號，我更願意使用子串函數

with cte as (
    select 
    * 
    from NumbersList n, 
    dbo.NumbersTable(1,4,1) as nt 
), splitted as (
select 
    list, 
    id, 
    i, 
    substring(val,i,1) val 
from cte 
cross apply dbo.Split(list,',') v 
) 
select 
    distinct 
    list, 
    i, 
    sum(cast(val as int)) over (partition by list, i) sumOf 
from splitted 

輸出爲以下項

insert into NumbersList select '1100,2014,4000' 
insert into NumbersList select '1111,2222,3456' 

是如下