Tricky Regexp and string to column-row SQL

Question

Hi All,
I am TRYING to build an SQL that will convert a string passed as
HP|250 GB * 2 + 80 GB * 3 + 100 GB | SATAto
HP | 250 GB | SATA
HP | 250 GB | SATA
HP | 80 GB | SATA
HP | 80 GB | SATA
HP | 80 GB | SATA
HP | 100 GB | SATAMy attempt so far is (which tells me to learn more about regexp)
WITH T AS
  ( SELECT q'[HP|250 GB * 2 + 80 GB * 3 + 100 GB | SATA]' str FROM DUAL
  t2 AS
  (SELECT trim(regexp_substr(str,'[^|]+',1,level)) val
   FROM T
   CONNECT BY level <= LENGTH (str)-LENGTH(REPLACE(str,'|'))+1
  ),t3 AS
(SELECT DISTINCT trim(regexp_substr(val,'[^+]+',1,level)) val
FROM t2 WHERE VAL LIKE '%*%' OR VAL LIKE '%+%'
CONNECT BY level <= LENGTH (val)-LENGTH(REPLACE(val,'+'))+1
  ),t4 as
  (SELECT VAL,ROWNUM RN FROM T2 A1
   WHERE VAL NOT LIKE '%*%' OR VAL NOT LIKE '%+%'),
  t5 as
  (SELECT A.VAL MK, T3.VAL CONFG, B.VAL TYP
   FROM   T3, (SELECT VAL FROM T4 WHERE RN = 1)A,(SELECT VAL FROM T4 WHERE RN = 2) B)
   SELECT *
   FROM   T5;And output I got so far is:
MK                                        CONFG                                     TYP                                      
HP                                        80 GB * 3                                 SATA                                     
HP                                        250 GB * 2                                SATA                                     
HP                                        100 GB                                    SATA                                      Please suggest what more shall I do to get the desired output(An SQL)?
BANNER                                                                          
Oracle Database 11g Enterprise Edition Release 11.2.0.1.0 - Production          
PL/SQL Release 11.2.0.1.0 - Production                                          
CORE     11.2.0.1.0     Production                                                        
TNS for 32-bit Windows: Version 11.2.0.1.0 - Production                         
NLSRTL Version 11.2.0.1.0 - Production  Thanks for reading this post
*009*

Answer 1

with t1 as (
            select 'HP|250 GB * 2 + 80 GB * 3 + 100 GB | SATA' str from dual union all
            select 'INTEL|40 GB  + 55 GB| IDE' from dual
     t2 as (
            select  regexp_substr(str,'^[^|]+') mk,
                    trim(regexp_substr(replace(str,'|','+'),'[^+]+',1,column_value + 1)) element,
                    regexp_substr(str,'[^|]+$') typ
              from  t1,
                    table(
                          cast(
                               multiset(
                                        select  level
                                          from  dual
                                          connect by level <= length(regexp_replace(str || '+','[^+]'))
                               as sys.OdciNumberList
select  mk,
        trim(regexp_replace(element,'\*.*$')) val,
        typ
  from  t2,
        table(
              cast(
                   multiset(
                            select  level
                              from  dual
                              connect by level <= substr(regexp_substr(element,'\*.*$'),2)
                   as sys.OdciNumberList
MK         VAL        TYP
HP         250 GB      SATA
HP         250 GB      SATA
HP         80 GB       SATA
HP         80 GB       SATA
HP         80 GB       SATA
HP         100 GB      SATA
INTEL      40 GB       IDE
INTEL      55 GB       IDE
8 rows selected.
SQL> SY.
P.S. Post your version. If 11.1 it can be simplified. If 11.2 can be simplified even more.