Rows to colon

Question

Hey
Problem (rows to colon):
I have a table that looks like this:
Id value
1 10
1 20
1 20
2 70
2 40
2 50
And I want a table (result) that looks like this by a SQL statement
Id value value value
1 10 20 20
2 70 40 50
The numbers of value on each Id are fixed at runtime (query time) but not always the same (1-20 values).
How do I solve it? I it possible to solve like that?
/David Gustavsson
[email protected]
null

Answer 1

Here's one way:
SQL> create table test (col1 varchar2(20), col2 number);
Table created.
SQL> insert all
  2    into test values ('A:B:C', 1)
  3    into test values ('Dg:Ezs', 2)
  4  select * from dual;
2 rows created.
SQL> select
  2    t.col2,
  3    regexp_substr(t.col1, '\w+', 1, t2.column_value) c1
  4  from test t,
  5    table(cast(multiset(select level
  6                        from dual
  7                        connect by level <= length(t.col1) - length(replace(t.col1, ':', '')) + 1
  8                       ) as sys.odcinumberlist )) t2
  9  order by 2, 1;
      COL2 C1
         1 A
         1 B
         1 C
         2 Dg
         2 Ezs
SQL>Edited by: Littlefoot on Jan 31, 2012 10:13 AM