Sql query join with transpose

Question

i have two tables table A and table B, both these tables are associated with id column . And the table B might have
variant properties for each id i.e as shown in the below example id "1" having 4 properties and id "2" having 7
properties and id "3" having 6 properties . is it possible to create output as shown below with varient properties like this .
if at all will it create any performance issues
Table A                                                       
id,      Name     ,Hiredate
1,     archana          ,1/1/2002                                             
2,     sita          ,1/2/2002                                             
3,     rama           ,1/3/2003                                             
Table B                                                       
id,      properties,     value
1,     phone,          40256489                                             
1,     location,     delhi                                             
1,     job,          IT                                             
1,     sal,          3000                              
2,     phone,          40256488                                             
2,     location,     mumbai                                             
2,     job,          Marketing                                             
2,     sal,          5000                                             
2,     deptno,      10                                             
2,     emailid,      [email protected]                                             
2,     dob,          1-1-1600               
3,     phone,          40256483                                             
3,     location,     chennai                                             
3,     job,          insurance agent                                             
3,     gender,          male                                             
3,     company,      lic                                             
3,     emailid,      [email protected]                                             
out put                                                        
id,     Name,     Hiredate,     phone, location,      job,     sal,     deptno,      emailid, dob, gender , company
1,     archana,1/1/2002,     40256489, delhi,      IT,     3000,     ,          ,          , ,
2,     rama,     1/2/2002,     40256488, mumbai,     Marketing,     5000,     10 ,     [email protected], 1-1-1600,     ,      
3,     sita,     1/3/2003,     40256483, chennai,     insurance agent,     , [email protected],          , male,     lic
in 11g i can use pivot , but how to achieve this in 10g ( 10.2.0.4.0 )
Edited by: user7955917 on May 23, 2012 8:28 AM

Answer 1

create table table_a(
    id          number,
    name        varchar2(20),
    hiredate    date);
insert into table_a values(1, 'archana', to_date('01/01/2002', 'dd/mm/yyyy'));
insert into table_a values(2, 'sita', to_date('01/02/2002', 'dd/mm/yyyy'));
create table table_b(
    id          number,
    property    varchar2(40),
    value       varchar2(40)
insert into table_b values(1, 'phone', '40256489');
insert into table_b values(1, 'location', 'delhi');
insert into table_b values(2, 'phone', '40256488');
insert into table_b values(2, 'job', 'Marketing');
select a.id,
       a.name,
       a.hiredate,
       max(case when b.property = 'phone' then b.value else null end) as phone,
       max(case when b.property = 'location' then b.value else null end) as location,
       max(case when b.property = 'job' then b.value else null end) as job     
from table_a a,
     table_b b
where a.id = b.id
group by a.id,
         a.name,
         a.hiredate;