Data marge

Question

Hello.
For example i have table.
NR name favorite_color
1 John Black
2 John Green
3 Arthur Gray
4 Mike White
Is it possible to select data and get result?
name favorite_color
John Black Green
Arthur Gray
Mike white
Thanks.
Solved by excell povot table...
Edited by: user11974179 on 2011.18.3 01:46
Edited by: user11974179 on 2011.18.3 02:28

Answer 1

One of the ways would be:
with table1 as
select 1 NR, 'John' name, 'Black' fav_color  from dual
union
select 2,  'John', 'Green' from dual
union
select 3,  'Arthur', 'Gray' from dual
union
select 4,  'Mike', 'White' from dual
SELECT name,
       LTRIM(MAX(SYS_CONNECT_BY_PATH(fav_color,' '))
       KEEP (DENSE_RANK LAST ORDER BY curr),',') AS fav_color
FROM   (SELECT name,
               fav_color,
               ROW_NUMBER() OVER (PARTITION BY name ORDER BY fav_color) AS curr,
               ROW_NUMBER() OVER (PARTITION BY name ORDER BY fav_color) -1 AS prev
        FROM  table1)
GROUP BY name
CONNECT BY prev = PRIOR curr AND name = PRIOR name
START WITH curr = 1
Output:
"NAME"     "FAV_COLOR"
"Arthur"     " Gray"
"John"     " Black Green"
"Mike"     " White"