例如ID first final 按照ID分组
A 2009
A
A
A
A
A 2011
B 2007
B
B
B 2010
C 2006
C
C 2011
.
.
如何能变成:
ID first final
A 2009 2011
A 2009 2011
A 2009 2011
A 2009 2011
A 2009 2011
A 2009 2011
B 2007 2010
B 2007 2010
B 2007 2010
B 2007 2010
C 2006 2011
C 2006 2011
C 2006 2011
.
.
烦请高手解答,多谢多谢!!!!!