Split string by comma in SQL Server 2008

Question

There are two strings a and b

The a string contains comma. I would like to split the a string by comma, then go through every

Answer 1

Following will work -

DECLARE @A VARCHAR (100)= '4,5,6'
DECLARE @B VARCHAR (100)= 'RXXXXXX'
DECLARE @RETURN_VALUE BIT = 1 --DEFAULT 1


SELECT items
INTO #STRINGS 
FROM dbo.split(@A,',')

IF EXISTS(SELECT 1 FROM #STRINGS S WHERE CHARINDEX(items, @B) > 0)
SET @RETURN_VALUE = 0

PRINT @RETURN_VALUE

DROP TABLE #STRINGS

You can also use CONTAINS instead of CHARINDEX -

IF EXISTS(SELECT 1 FROM #STRINGS S WHERE CONTAINS(items, @B))
SET @RETURN_VALUE = 0