Split a string in SQL by hyphen in 2012 version - sql-server

Question

I have multiple string in a column where I have get last string after column
Below are three example like same I have different number hyphen that can occur in a string but desired result is I have string before last hyphen
1. abc-def-Opto
2. abc-def-ijk-5C-hello-Opto
3. abc-def-ijk-4C-hi-Build
4. abc-def-ijk-4C-123-suppymanagement
Desired result set is
def
hello
hi
123
How to do this in SQL query to get this result set. I have MSSQL 2012 version
Require a generic sql which can get the result set

Answer 1

There are many ways to split/parse a string. ParseName() would fail because you may have more than 4 positions.
One option (just for fun), is to use a little XML.
We reverse the string
Convert into XML
Grab the second node
Reverse the desired value for the final presentation
Example
Declare #YourTable Table ([SomeCol] varchar(50))
Insert Into #YourTable Values
('abc-def-Opto')
,('abc-def-ijk-5C-hello-Opto')
,('abc-def-ijk-4C-hi-Build')
,('abc-def-ijk-4C-123-suppymanagement')
Select *
,Value = reverse(convert(xml,'<x>'+replace(reverse(SomeCol),'-','</x><x>')+'</x>').value('x[2]','varchar(150)'))
from #YourTable
Returns
SomeCol Value
abc-def-Opto def
abc-def-ijk-5C-hello-Opto hello
abc-def-ijk-4C-hi-Build hi
abc-def-ijk-4C-123-suppymanagement 123

Answer 2

Without getting into XML stuff, simply using string functions of sql server.
Declare #YourTable Table ([SomeCol] varchar(50))
Insert Into #YourTable Values
('abc-def-Opto')
,('abc-def-ijk-5C-hello-Opto')
,('abc-def-ijk-4C-hi-Build')
,('abc-def-ijk-4C-123-suppymanagement');
SELECT *
,RTRIM(LTRIM(REVERSE(
SUBSTRING(
SUBSTRING(REVERSE([SomeCol]) , CHARINDEX('-', REVERSE([SomeCol])) +1 , LEN([SomeCol]) )
, 1 , CHARINDEX('-', SUBSTRING(REVERSE([SomeCol]) , CHARINDEX('-', REVERSE([SomeCol])) +1 , LEN([SomeCol]) ) ) -1
)
)))
FROM #YourTable

Answer 3

i am not sure this script will exactly useful to your requirement but i am just trying to give an idea how to split the data
IF OBJECT_ID('tempdb..#Temp')IS NOT NULL
DROP TABLE #Temp
;WITH CTE(Id,data)
AS
(
SELECT 1,'abc-def-Opto' UNION ALL
SELECT 2,'abc-def-ijk-5C-hello-Opto' UNION ALL
SELECT 3,'abc-def-ijk-4C-hi-Build' UNION ALL
SELECT 4,'abc-def-ijk-4C-123-suppymanagement'
)
,Cte2
AS
(
SELECT Id, CASE WHEN Id=1 AND Setdata=1 THEN data
WHEN Id=2 AND Setdata=2 THEN data
WHEN Id=3 AND Setdata=3 THEN data
WHEN Id=4 AND Setdata=4 THEN data
ELSE NULL
END AS Data
FROM
(
SELECT Id,
Split.a.value('.','nvarchar(1000)') AS Data,
ROW_NUMBER()OVER(PARTITION BY id ORDER BY id) AS Setdata
FROM(
SELECT Id,
CAST('<S>'+REPLACE(data ,'-','</S><S>')+'</S>' AS XML) AS data
FROM CTE
) AS A
CROSS APPLY data.nodes('S') AS Split(a)
)dt
)
SELECT * INTO #Temp FROM Cte2
SELECT STUFF((SELECT DISTINCT ', '+ 'Set_'+CAST(Id AS VARCHAR(10))+':'+Data
FROM #Temp WHERE ISNULL(Data,'')<>'' FOR XML PATH ('')),1,1,'')
Result
Set_1:abc, Set_2:def, Set_3:ijk, Set_4:4C

Answer 4

You can do like
WITH CTE AS
(
SELECT 1 ID,'abc-def-Opto' Str
UNION
SELECT 2, 'abc-def-ijk-5C-hello-Opto'
UNION
SELECT 3, 'abc-def-ijk-4C-hi-Build'
UNION
SELECT 4, 'abc-def-ijk-4C-123-suppymanagement'
)
SELECT ID,
REVERSE(LEFT(REPLACE(P2, P1, ''), CHARINDEX('-', REPLACE(P2, P1, ''))-1)) Result
FROM (
SELECT LEFT(REVERSE(Str), CHARINDEX('-', REVERSE(Str))) P1,
REVERSE(Str) P2,
ID
FROM CTE
) T;
Returns:
+----+--------+
| ID | Result |
+----+--------+
| 1 | def |
| 2 | hello |
| 3 | hi |
| 4 | 123 |
+----+--------+
Demo