Convert Comma Separated column value to rows
try this
SELECT A.[id], Split.a.value('.', 'VARCHAR(100)') AS String FROM (SELECT [id], CAST ('<M>' + REPLACE([string], ',', '</M><M>') + '</M>' AS XML) AS String FROM TableA) AS A CROSS APPLY String.nodes ('/M') AS Split(a); refer here
http://www.sqljason.com/2010/05/converting-single-comma-separated-row.html
SELECT EmployeeID,LTRIM(RTRIM(m.n.value('.[1]','varchar(8000)'))) AS CertsFROM(SELECT EmployeeID,CAST('<XMLRoot><RowData>' + REPLACE(Certs,',','</RowData><RowData>') + '</RowData></XMLRoot>' AS XML) AS xFROM @t)tCROSS APPLY x.nodes('/XMLRoot/RowData')m(n)
New way of doing this:
SELECT a.Id, b.value FROM Sample a cross apply string_split(a.string,',') b