Tricky Family Structures

Question

Hi to all,
I am trying to get some information about families: So what I have is:
-a primary key for each member (individual_id)
-a key which indicates members of a familiy belonging together (fam_key)
-an attribute for the age of each member
-a sexcode to identify sexe
All that i want is to segment the data I have, e.g. all families which members are between 0 and 19 years old, all families which members are between 20 and 26 years old and so on.
The thing is I do not know if there is a analytic function can handle this kind of problem. At the moment I am trying with ROW_NUMBER() OVER( PARTITION BY FAM_KEY ORDER BY AGE DESC) so I can get all the family numbers, which oldest members are 19 years old. But when starting with the next segment (20-26 aged members) the things are getting more complicated. So what I need is a way to narrow the upper and lower age borders of my families.
Any help is very appreciated!!
Thanks in advance,
Thomas

Answer 1

What about something like this
Processing ...
WITH INPUT AS (
     select object_name as family,
          procedure_name as member,
          trunc(dbms_random.value()*100)+1 as age,
          DECODE(TRUNC(dbms_random.value()*2),1,'F','M') AS SEXCODE
     from dba_procedures
     where owner ='SYS'
          and object_name in (
               select object_name
               from dba_objects
               where owner = 'SYS'
                    and object_type in ( 'PROCEDURE','FUNCTION','PACKAGE' )
                    and rownum < 20
          AND procedure_name IS NOT NULL
SELECT *
FROM INPUT
WHERE FAMILY IN (
          SELECT FAMILY
          FROM INPUT A
          WHERE NOT EXISTS (
                    SELECT NULL
                    FROM INPUT B
                    WHERE B.FAMILY = A.FAMILY
                         AND NOT B.AGE BETWEEN 10 AND 90
UNION ALL
SELECT FAMILY,
     '_MIN' AS MEMBER,
     MIN(AGE),
     TO_CHAR(COUNT(*))
FROM INPUT
GROUP BY FAMILY
UNION ALL
SELECT FAMILY,
     '_MAX' AS MEMBER,
     MAX(AGE),
     NULL
FROM INPUT
GROUP BY FAMILY
ORDER BY FAMILY,MEMBER
Query finished, retrieving results...
FAMILY                     MEMBER                    AGE   SEXCODE 
DIUTIL                     ATTRIBUTE_USE_STATISTICS   86        F         
DIUTIL                     BOOL_TO_INT                84        M         
DIUTIL                     GET_D                      24        M         
DIUTIL                     GET_DIANA                  36        F         
DIUTIL                     INT_TO_BOOL                61        M         
DIUTIL                     NODE_USE_STATISTICS        19        F         
DIUTIL                     PSTUB                      77        F         
DIUTIL                     SUBPTXT                    46        F         
XML_SCHEMA_NAME_PRESENT    IS_SCHEMA_PRESENT          89        F         
9 row(s) retrievedBye Alessandro