I have a KVP Key value pair Table, Need sql to make it relational structure...!

I have a KVP Table and the structure is ID, Key,开发者_开发百科 Value.

Here are some example values...

ID, KEY,       VALUE
---------------------
 1, STATUS,    TRUE
 1, AGE GROUP, 10
 1, TRAVEL,    Y
 2, STATUS,    FALSE
 2, AGE GROUP, 20
 2, TRAVEL,    N

I want these values to be transformed as below...

ID, STATUS, AGE GROUP, TRAVEL
------------------------------
 1, TRUE,   10,        Y
 2, FALSE,  20,        N

I have read about crosstab/pivot, but I'm not able to make a query which can give me the above output. Is there any way in SQL to make my output look like the above example?

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Assuming Oracle based on the tag, then

SELECT DISTINCT id
  , MAX(CASE key WHEN 'STATUS' THEN value ELSE null END) OVER (PARTITION BY id) status
  , MAX(CASE key WHEN 'AGE GROUP' THEN value ELSE null END) OVER (PARTITION BY id) age_grp
  , MAX(CASE key WHEN 'TRAVEL' THEN value ELSE null END) OVER (PARTITION BY id) travel
FROM kvp
ORDER BY id;

---

There are probably optimizations, but this works (tested in SQLite and MySQL)

select stat.id as id, status, age_group, travel from 
(select id, Value as status from kvp
where Key = 'STATUS') as stat JOIN
(select id, Value as age_group from kvp
where Key = 'AGE GROUP') as age on stat.id = age.id JOIN
(select id, Value as travel from kvp
where Key = 'TRAVEL') as trav on stat.id = trav.id;

Edited to fix a possible ambiguity.

---

select
    min(decode(KEY, 'ID',        VALUE, null)) ID,
    min(decode(KEY, 'STATUS',    VALUE, null)) STATUS,
    min(decode(KEY, 'AGE GROUP', VALUE, null)) AGE_GROUP,
    min(decode(KEY, 'TRAVEL',    VALUE, null)) TRAVEL
from
    KVP