Getting values from a specific row in a table

Question

hi all, i have a table that has the following data
WITH sec AS
  SELECT 111 id,  'XPE' cid,  10 alias, 'TLC' Description, 'PEYU' lvl_1, 'IES' lvl_2, ' BAN' lvl_3 FROM dual UNION ALL
  SELECT 111 id,  'XPE' cid,  78 alias, 'TLC2' Description, 'SUN' lvl_1, null lvl_2, ' BAN3' lvl_3 FROM dual UNION ALL
   SELECT 111 id,  'XPE' cid,  200 alias, 'TLC' Description, null lvl_1, null lvl_2, ' BAN' lvl_3 FROM dual UNION ALL
  SELECT 111 id,  'XPE' cid,  54 alias, 'TLC3' Description, 'SUN5' lvl_1, null lvl_2, ' BAN3' lvl_3 FROM dual UNION ALL
  SELECT 112 id,  'XPE2' cid,  10 alias, 'PAD' Description, 'PEYU' lvl_1, 'IES' lvl_2, ' BAN' lvl_3 FROM dual UNION ALL
  SELECT 112 id,  'XPE2' cid,  78 alias, 'PAD2' Description, 'SUN' lvl_1, null lvl_2, ' BAN3' lvl_3 FROM dual UNION ALL
  SELECT 112 id,  'XPE2' cid,  54 alias, 'TLC3' Description, 'SUN5' lvl_1, null lvl_2, ' BAN3' lvl_3 FROM dual UNION ALL
  SELECT 112 id,  'XPE2' cid,  200 alias, 'PAD' Description, 'SIN' lvl_1, 'CON' lvl_2, ' UIE' lvl_3 FROM dual UNION ALL
  SELECT 113 id,  'XPE3' cid,  10 alias, 'PAD5' Description, NULL lvl_1, NULL lvl_2, NULL lvl_3 FROM dual UNION ALL
  SELECT 113 id,  'XPE3' cid,  200 alias, 'PAD5' Description, NULL lvl_1, NULL lvl_2,  NULL lvl_3 FROM dual UNION ALL
  SELECT 113 id,  'XPE3' cid,  78 alias, 'PAD7' Description, 'SUN' lvl_1, null lvl_2, ' BAN3' lvl_3 FROM dual UNION ALL
  SELECT 113 id,  'XPE3' cid,  54 alias, 'TLE' Description, 'SUN5' lvl_1, null lvl_2, ' BAN3' lvl_3 FROM dual
)i want to write a query that give me this output
ID     CID     ALIAS     DESCRIPTION     LVL_1     LVL_2     LVL_3
111     XPE       10     TLC             PEYU     IES       BAN
111     XPE       200     TLC             PEYU    IES      BAN
111     XPE       78     TLC2             SUN              BAN3
111     XPE       54     TLC3             SUN5              BAN3
112     XPE2     10     PAD             PEYU     IES       BAN
112     XPE2     200     PAD             SIN     CON       UIE
112     XPE2     78     PAD2             SUN                BAN3
112     XPE2     54     TLC3             SUN5              BAN3
113     XPE3     10     PAD5               
113     XPE3     200     PAD5               
113     XPE3     78     PAD7             SUN              BAN3
113     XPE3     54     TLE             SUN5              BAN3
this is how the logic works:
as you can see the table has many different set of ids, 111,112,113 and each id has a set of alias
for id 111 and alias 200 the sec table has null values for level 1 and level 2 columns. what i want to do
is that if any of the level1,level2 and level3 columns has null VALUES(FOR aliases=200) then the values should be taking from the ROW(s) with alias=10
in this case alias=200 display peyu and ies for level1 and level2 column. this values were taking from the row with alias=10 and id =111.
level3 stay the same since it is not null
for id 112 and alias =200, none of te level columns has null so the value stay the same as in the table
for id 113 alias 200, all level columns has null so the value should be taking from alias=10 id =113.
in this case the row with alias=10 has also null so both rows 200 and 10 gets display with null values
the other rows with different alias should just be display.
i tried using las_value analytic function but i was not successful. i am using ORACLE 9I and ignore null option in last_value function is not supported
the data in the table is not in any particular order.
can someone help write a query that gives me the output above. thanks

Answer 1

If I understand correct,below solution is corect. :-)
col lvl_2 for a10
WITH sec AS(
SELECT 111 id, 10 alias,'PEYU' lvl_1, 'IES' lvl_2, ' BAN' lvl_3 FROM dual UNION ALL
SELECT 111 id, 78 alias,'SUN' lvl_1, null lvl_2, ' BAN3' lvl_3 FROM dual UNION ALL
SELECT 111 id,200 alias,null lvl_1, null lvl_2, ' BAN' lvl_3 FROM dual UNION ALL
SELECT 111 id, 54 alias,'SUN5' lvl_1, null lvl_2, ' BAN3' lvl_3 FROM dual UNION ALL
SELECT 112 id, 10 alias,'PEYU' lvl_1, 'IES' lvl_2, ' BAN' lvl_3 FROM dual UNION ALL
SELECT 112 id, 78 alias,'SUN' lvl_1, null lvl_2, ' BAN3' lvl_3 FROM dual UNION ALL
SELECT 112 id, 54 alias,'SUN5' lvl_1, null lvl_2, ' BAN3' lvl_3 FROM dual UNION ALL
SELECT 112 id,200 alias,'SIN' lvl_1, 'CON' lvl_2, ' UIE' lvl_3 FROM dual UNION ALL
SELECT 113 id, 10 alias, NULL lvl_1, NULL lvl_2, NULL lvl_3 FROM dual UNION ALL
SELECT 113 id,200 alias, NULL lvl_1, NULL lvl_2,  NULL lvl_3 FROM dual UNION ALL
SELECT 113 id, 78 alias,'SUN' lvl_1, null lvl_2, ' BAN3' lvl_3 FROM dual UNION ALL
SELECT 113 id, 54 alias,'SUN5' lvl_1, null lvl_2, ' BAN3' lvl_3 FROM dual
select id,alias,
case when alias = 200 and lvl_1 is null
     then max(decode(alias,10,lvl_1)) over(partition by id)
     else lvl_1 end as lvl_1,
case when alias = 200 and lvl_2 is null
     then max(decode(alias,10,lvl_2)) over(partition by id)
     else lvl_2 end as lvl_2,
case when alias = 200 and lvl_3 is null
     then max(decode(alias,10,lvl_3)) over(partition by id)
     else lvl_3 end as lvl_3
  from sec
order by id,alias;
ID  ALIAS  LVL_  LVL_2  LVL_3
111     10  PEYU  IES     BAN
111     54  SUN5  null    BAN3
111     78  SUN   null    BAN3
111    200  PEYU  IES     BAN
112     10  PEYU  IES     BAN
112     54  SUN5  null    BAN3
112     78  SUN   null    BAN3
112    200  SIN   CON     UIE
113     10  null  null   null
113     54  SUN5  null    BAN3
113     78  SUN   null    BAN3
113    200  null  null   null