Rows in the resultset in a line, instead of lines

Hello

assuming that I will have 2 tables:

create table t_customer (ID number, varchar2(20 char) last_name, first_name varchar2(20 char));

create table t_document (ID number, customer_id, document varchar2(200 char));


insert into t_customer (id, first_name, last_name) values (1, 'Smith', 'Peter');

insert into t_document (id, customer_id, document) values (1, 1, "file1.doc");
insert into t_document (id, customer_id, document) values (2, 1, 'file2.doc');
insert into t_document (id, customer_id, document) values (3, 1, 'file3.doc');

I want to get a result like this:

client file #1 #2 file #3

-------------------------------------------------------------------------------------------

Peter Smith file1.doc file2.doc file #3.doc

The result should be in a line, instead of 3 lines.

I used this query:

with the customer

(select ID

last_name

first name

of t_customer)

document1

as (select d.id

d.customer_id

d.document

of t_document d

c t_customer

where d.customer_id = c.id

and c.id = 1

and d.id = 1)

document2

as (select d.id

d.customer_id

d.document

of t_document d

c t_customer

where d.customer_id = c.id

and c.id = 1

and d.id = 2)

document3,

as (select d.id

d.customer_id

d.document

of t_document d

c t_customer

where d.costumer_id = c.id

and c.id = 1

and d.id = 3)

Select c.

d1.*

d2.*

d3.*

Customer c

document1 d1

document2 d2

d3 document3

where c.id = d1.client_id

and d2.client_id = c.id

and c.id = d3.client_id;

My solution works as expected - but seems not as elegant for me. Is there another way to get the desired results? And what would be the solution if the

number of documents that belong to a customer would be dynamic? My solution, I would need to have 10 separate with clauses if 10 records

for a customer would exist.

Any help will be appreciated.

Rgds

J.

Hello

VivaLaVida! wrote:

Thank you - but since I'm on 10g I'm not able to use PIVOT :-(

How everybody had to know that?  If you want an answer that works in your version, you say what version it is.  Oracle 10 was released in 2003; It is a very long time in this area.  It is not yet supported by Oracle more.  Nobody is going to assume that you're using something of this age.

The FAQ Forum shows how the pivots in any version; Ann gives a good example in response #3, above.

Where told Ann

GROUP BY tc.last_name |' '|| TC.first_name, TC.ID;

One could also say:

GROUP OF tc.last_name, tc.first_name, tc.id;

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select 1 eno, 2 amt , add_months(sysdate,1) load_date from dual union all
select 2 eno, 1 amt , sysdate load_date from dual union all
select 2 eno, 2 amt , add_months(sysdate,1) load_date from dual
);

merge into temp t
using (select eno, amt, load_date
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        where trunc(Load_Date) = TO_DATE('05/30/2012', 'MM/DD/YYYY')) s
on ((s.eno = t.eno) and trunc(t.Load_Date) = TO_DATE('06/30/2012', 'MM/DD/YYYY'))
when matched then
  update set t.amt = s.amt;
commit;

select * from temp;

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    MHO%xe> alter session set nls_date_language='AMERICAN';

Sessie is gewijzigd.

Verstreken: 00:00:00.01
MHO%xe> with t as ( -- generating your data here, simplified by me due to cat and lawn
  2  select 1063 study_key
  3  ,      to_date('01-MAR-09', 'dd-mon-rr') phase_start_date
  4  ,      to_date('02-MAR-09', 'dd-mon-rr') measurement_date_taken
  5  ,      to_date('01-APR-09', 'dd-mon-rr') study_end_date
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 13  ) -- actual query:
 14  select study_key
 15  ,      phase_start_date
 16  ,      measurement_date_taken
 17  ,      study_end_date
 18  from   t
 19  union all
 20  select study_key
 21  ,      phase_start_date
 22  ,      measurement_date_taken + level -- or rownum
 23  ,      study_end_date
 24  from ( select study_key
 25         ,      phase_start_date
 26         ,      measurement_date_taken
 27         ,      study_end_date
 28         ,      add_up
 29         from (
 30                select study_key
 31                ,      phase_start_date
 32                ,      measurement_date_taken
 33                ,      study_end_date
 34                ,      study_end_date - max(measurement_date_taken) over (partition by study_key
 35                                                                          order by measurement_date_taken ) add_up
 36                ,      lead(measurement_date_taken) over (partition by study_key
 37                                                          order by measurement_date_taken ) last_rec
 38                from   t
 39              )
 40         where last_rec is null
 41       )
 42  where rownum <= add_up
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 STUDY_KEY PHASE_START_DATE    MEASUREMENT_DATE_TA STUDY_END_DATE
---------- ------------------- ------------------- -------------------
      1063 01-03-2009 00:00:00 02-03-2009 00:00:00 01-04-2009 00:00:00
      1063 03-03-2009 00:00:00 04-03-2009 00:00:00 01-04-2009 00:00:00
      1063 03-03-2009 00:00:00 09-03-2009 00:00:00 01-04-2009 00:00:00
      1063 03-03-2009 00:00:00 14-03-2009 00:00:00 01-04-2009 00:00:00
      1063 03-03-2009 00:00:00 19-03-2009 00:00:00 01-04-2009 00:00:00
      1063 22-03-2009 00:00:00 23-03-2009 00:00:00 01-04-2009 00:00:00
      1063 22-03-2009 00:00:00 30-03-2009 00:00:00 01-04-2009 00:00:00
      1063 22-03-2009 00:00:00 31-03-2009 00:00:00 01-04-2009 00:00:00
      1063 22-03-2009 00:00:00 01-04-2009 00:00:00 01-04-2009 00:00:00

9 rijen zijn geselecteerd.

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    ********************************************************************************

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  COL_SYNONYM 
FROM
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call     count       cpu    elapsed       disk      query    current        rows
------- ------  -------- ---------- ---------- ---------- ----------  ----------
Parse        1      0.00       0.00          0          0          0           0
Execute     83      0.01       0.01          0          0          0           0
Fetch       83      1.01       1.11         12       3154          0      260371
------- ------  -------- ---------- ---------- ---------- ----------  ----------
total      167      1.03       1.13         12       3154          0      260371

Misses in library cache during parse: 0
Optimizer mode: ALL_ROWS
Parsing user id: 148  (OUR_SCHEMA)   (recursive depth: 2)

Rows     Row Source Operation
-------  ---------------------------------------------------
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 260371   CONCATENATION  (cr=3154 pr=12 pw=0 time=1072560 us)
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Rows     Execution Plan
-------  ---------------------------------------------------
      0  SELECT STATEMENT   MODE: ALL_ROWS
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      0     FILTER
      0      TABLE ACCESS   MODE: ANALYZED (FULL) OF 'OUR_TABLE' 
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  ----------------------------------------   Waited  ----------  ------------
  db file scattered read                          2        0.01          0.02
********************************************************************************
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    ADOS

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