将逗号分隔列值转换为行

我有一个表格示例与下面存储的数据

Id | String -------------- 1 abc,def,ghi 2 jkl,mno,pqr 

我需要输出像..

 Id | processedrows -------------- 1 abc 1 def 1 ghi 2 jkl 2 mno 2 pqr 

我怎样才能做到SQL Server中的select查询？

Answer 1

尝试这个

  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); 

请参阅这里

http://www.sqljason.com/2010/05/converting-single-comma-separated-row.html

Answer 2

试试这个。 你会得到你的输出。

 SELECT id, PARSENAME(REPLACE(Split.a.value('.', 'VARCHAR(100)'),'-','.'),1) 'Values' FROM ( SELECT algorithms, CAST ('<M>' + REPLACE(string, ',', '</M><M>') + '</M>' AS XML) AS Data FROM <TableName> ) AS A CROSS APPLY Data.nodes ('/M') AS Split(a) 

Answer 3

让我们试试下面的脚本：

 declare @str varchar(max) SELECT @str = isnull(@str +',', '') + a.Value FROM (SELECT Value Entityvalue from Table) a select @str 

Answer 4

 SELECT EmployeeID, LTRIM(RTRIM(mnvalue('.[1]','varchar(8000)'))) AS Certs FROM ( SELECT EmployeeID,CAST('<XMLRoot><RowData>' + REPLACE(Certs,',','</RowData><RowData>') + '</RowData></XMLRoot>' AS XML) AS x FROM @t )t CROSS APPLY x.nodes('/XMLRoot/RowData')m(n)