问如何在SQL中分隔字段并从该字段创建单独的行？

EN

 declare @t table (Colour  varchar(50))
    insert into @t (Colour)
    values 
    ('Red'),
    ('Blue|Red|Yellow'),
    ('Green|White'),
    ('Yellow')



 ;with cte as (
    SELECT  Colour As Colour ,
         Split.a.value('.', 'VARCHAR(100)') AS SubColour  
     FROM  (SELECT Colour,
             CAST ('<M>' + REPLACE([Colour], '|', '</M><M>') + '</M>' AS XML) AS String  
         FROM  @t) AS A CROSS APPLY String.nodes ('/M') AS Split(a))

         select * from cte 

CREATE TABLE NewTable (Colour varchar(50),SubColour varchar(50))   

SELECT Colour, LEN(Colour) - LEN(REPLACE(Colour,'|','')) AS delimCount
INTO #temp FROM [ColourTable]

DECLARE @i int
DECLARE @delimLoc int
DECLARE @Colour varchar(50)
DECLARE @subColour varchar(50)
DECLARE ColourCursor CURSOR FOR SELECT * FROM #temp;
OPEN ColourCursor;

WHILE @@FETCH_STATUS = 0
BEGIN

FETCH NEXT FROM ColourCursor INTO @Colour;
SET @i = 1
SET @delimLoc = 0
IF delimCount > 0

BEGIN
WHILE @i <= delimCount

BEGIN
SET @subColour = SUBSTRING(@Colour,@delimLoc+1,CHARINDEX(@Colour,'|',@delimLoc+1))
INSERT INTO NewTable VALUES (@Colour,@subColour)
SET @i = @i + 1
SET @delimLoc = @delimLoc + CHARINDEX(@Colour,'|',@delimLoc+1)
END

END

END

CLOSE ColourCursor
DEALLOCATE ColourCursor;