how to splite a column value in multipale column [closed] - sql-server

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how to dived
ID SN Types
1 123 ABC,XYZ,TEST, RJK,CDF,TTT,UMB,UVX
2 234 RJK,CDF,TTT,UMB,UVX,TTT,UMB,UVX
3 345 OID,XYZ,TTT,UMB,UVX,TTT,UMB,UVX
as
ID SN Types1 Types2 Types3 Types4 Types5 Types6 Types7 Types8
1 123 ABC XYZ TEST RJK CDF TTT UMB UVX
2 234 RJK CDF TTT UMB UVX TTT UMB UVX
3 345 OID XYZ TTT UMB UVX TTT UMB UVX
please send me sql code
thanx,

Answer 1

First, create a split function that maintains order:
CREATE FUNCTION [dbo].[SplitStrings_Ordered]
(
#List NVARCHAR(MAX),
#Delimiter NVARCHAR(255)
)
RETURNS TABLE
AS
RETURN (SELECT [Index] = ROW_NUMBER() OVER (ORDER BY Number), Item
FROM (SELECT Number, Item = SUBSTRING(#List, Number,
CHARINDEX(#Delimiter, #List + #Delimiter, Number) - Number)
FROM (SELECT ROW_NUMBER() OVER (ORDER BY [object_id])
FROM sys.all_objects) AS n(Number)
WHERE Number <= CONVERT(INT, LEN(#List))
AND SUBSTRING(#Delimiter + #List, Number, LEN(#Delimiter)) = #Delimiter
) AS y);
Now, you can use this function in combination with a PIVOT. This is a self-enclosed example but you can just replace #d in the last query with whatever your real table is.
DECLARE #d TABLE(ID INT, SN INT, Types NVARCHAR(MAX));
INSERT #d VALUES
(1,123,N'ABC,XYZ,TEST, RJK,CDF,TTT,UMB,UVX'),
(2,234,N'RJK,CDF,TTT,UMB,UVX,TTT,UMB,UVX' ),
(3,345,N'OID,XYZ,TTT,UMB,UVX,TTT,UMB,UVX' );
SELECT ID,SN,
Types1 = [1], Types2 = [2], Types3 = [3], Types4 = [4],
Types1 = [5], Types6 = [6], Types7 = [7], Types8 = [8]
FROM #d AS d CROSS APPLY dbo.SplitStrings_Ordered(d.Types, ',') AS y
PIVOT (MAX(Item) FOR [Index] IN ([1],[2],[3],[4],[5],[6],[7],[8])) AS p;

Answer 2

T-SQL is not well suited for dealing with comma-separated values. However with creative use of a Recursive CTE, it is possible to split up the columns without too much effort. The following query makes the assumption that there is never more than 8 types total in a row in the original data - it can be trivially extended to handle any number of types (albeit not dynamic, the maximum number must be known):
;with TypesSplit as (
select [ID], [SN], 1 as [Index],
case when CHARINDEX(',', [Types]) <> 0 then substring([Types], CHARINDEX(',', [Types])+1, 1000) else '' end as [Types],
case when CHARINDEX(',', [Types]) <> 0 then substring([Types], 1, CHARINDEX(',', [Types])-1) else [Types] end as [Type]
from Types
union all
select [ID], [SN], [Index] + 1 as [Index],
case when CHARINDEX(',', [Types]) <> 0 then substring([Types], CHARINDEX(',', [Types])+1, 1000) else '' end as [Types],
case when CHARINDEX(',', [Types]) <> 0 then substring([Types], 1, CHARINDEX(',', [Types])-1) else [Types] end as [Type]
from TypesSplit
where LEN([Types])>0
)
select [ID],[SN],
max(case when [Index]=1 then [Type] end) as Types1,
max(case when [Index]=2 then [Type] end) as Types2,
max(case when [Index]=3 then [Type] end) as Types3,
max(case when [Index]=4 then [Type] end) as Types4,
max(case when [Index]=5 then [Type] end) as Types5,
max(case when [Index]=6 then [Type] end) as Types6,
max(case when [Index]=7 then [Type] end) as Types7,
max(case when [Index]=8 then [Type] end) as Types8
from TypesSplit
group by [ID],[SN]
(Demo: http://www.sqlfiddle.com/#!6/c522f/9)
The basic idea is to use CHARINDEX to find the locations of each comma, then SUBSTRING to split out each type from the beginning. The recursion loops through all of the types until there are none left to consume. The types are numbered via the [Index] column to allow reproducing them in the same order in the output. The output is basically a pivot table of the row data generated by the recursive CTE, which looks like this before pivoting:
| ID | SN | INDEX | TYPES | TYPE |
|----|-----|-------|------------------------------|------|
| 1 | 123 | 1 | XYZ,TEST,RJK,CDF,TTT,UMB,UVX | ABC |
| 2 | 234 | 1 | CDF,TTT,UMB,UVX,TTT,UMB,UVX | RJK |
| 3 | 345 | 1 | XYZ,TTT,UMB,UVX,TTT,UMB,UVX | OID |
| 3 | 345 | 2 | TTT,UMB,UVX,TTT,UMB,UVX | XYZ |
| 3 | 345 | 3 | UMB,UVX,TTT,UMB,UVX | TTT |
| 3 | 345 | 4 | UVX,TTT,UMB,UVX | UMB |
| 3 | 345 | 5 | TTT,UMB,UVX | UVX |
| 3 | 345 | 6 | UMB,UVX | TTT |
| 3 | 345 | 7 | UVX | UMB |
| 3 | 345 | 8 | | UVX |
| 2 | 234 | 2 | TTT,UMB,UVX,TTT,UMB,UVX | CDF |
| 2 | 234 | 3 | UMB,UVX,TTT,UMB,UVX | TTT |
| 2 | 234 | 4 | UVX,TTT,UMB,UVX | UMB |
| 2 | 234 | 5 | TTT,UMB,UVX | UVX |
| 2 | 234 | 6 | UMB,UVX | TTT |
| 2 | 234 | 7 | UVX | UMB |
| 2 | 234 | 8 | | UVX |
| 1 | 123 | 2 | TEST,RJK,CDF,TTT,UMB,UVX | XYZ |
| 1 | 123 | 3 | RJK,CDF,TTT,UMB,UVX | TEST |
| 1 | 123 | 4 | CDF,TTT,UMB,UVX | RJK |
| 1 | 123 | 5 | TTT,UMB,UVX | CDF |
| 1 | 123 | 6 | UMB,UVX | TTT |
| 1 | 123 | 7 | UVX | UMB |
| 1 | 123 | 8 | | UVX |
After pivoting, the final output looks like this:
| ID | SN | TYPES1 | TYPES2 | TYPES3 | TYPES4 | TYPES5 | TYPES6 | TYPES7 | TYPES8 |
|----|-----|--------|--------|--------|--------|--------|--------|--------|--------|
| 1 | 123 | ABC | XYZ | TEST | RJK | CDF | TTT | UMB | UVX |
| 2 | 234 | RJK | CDF | TTT | UMB | UVX | TTT | UMB | UVX |
| 3 | 345 | OID | XYZ | TTT | UMB | UVX | TTT | UMB | UVX |