Rows to column in 11g

Question

I would like to convert the below rows into 8 column values. ie this query should always return 8 columns like desc_line1, desc_line2,
desc_line3 etc..... desc_line8
select * from
    select desc_line from
              select transaction_id, line_no, DESC_LINE,
                     row_number() OVER (PARTITION BY transaction_id order by line_no asc) as rn
                     from TB_SISADMIN_TRADE_DESCR
              where transaction_id = 7566
              ) a
    union all
    select null as desc_line from dual
    union all
    select null as desc_line from dual
    union all
    select null as desc_line from dual
    union all
    select null as desc_line from dual
    union all
    select null as desc_line from dual
    union all
    select null as desc_line from dual
    union all
    select null as desc_line from dual
where rownum <=8
DUE 08/15/2011 05.000% FA   15
OLTS 12/11/01 00012          
REV REPO RATE VARIABLE       
ON 12/11/01 OFF 12/12/01     
AS OF 12/11/01               
YIELD    4.868 % TO MATURITY 
UNITED STATES TREAS NTS      
                                          -----------> Null row here as 8th row

Answer 1

Great, but this is different than what i am looking for. bit tricky. Here is an eg below.
SQL> select * from test;
        NO NA
        10 x
        10 A
        10 M
        20 B
        20 Y
        20 A
        70 B
The query should first convert 8 rows always for each no (append null for name column is there is no records
                                                                                to make it a complete 8 record set)
        NO NA
        10 x
        10 A
        10 M
        10
        10
        10
        10
        10
        20 B
        20 Y
        20 A
        20  
        20  
        20  
        20  
        20  
        70 B
then, need to convert this 8 rows for each no into 8 columns..
No   Name1 Name2  Name3  Name4  Name5  Name6 Name7  Name8
10     X         X          M          null        null       null     null        null
20     B         Y          A          null        null       null    null        null
70     B        null         null       null        null       null    null        null