Thread: Transpose rows to columns
Hi, I have a query that returns data like this: cust_id cust_name month cost revenue margin 991234 ABC 2003-07-01 10 15 5 991234 ABC 2003-08-01 11 17 6 991234 ABC 2003-09-01 12 19 7 991235 XYZ 2003-07-01 13 21 8 991235 XYZ 2003-08-01 12 19 7 991235 XYZ 2003-09-01 11 17 6 I want to turn it around so it displays like this: 991234,ABC,2003-07-01,10,15,5,2003-08-01,11,17,6,2003-09-01,12,19,7 991235,XYZ,2003-07-01,13,21,8,2003-08-01,12,19,7,2003-09-01,11,17,6 (I've used commas to shorten the layout for the example) Does anyone have some ideas on how to do this? Thanks, David Witham Telephony Platforms Architect Unidial Ph: 03 8628 3383 Fax: 03 8628 3399
Hi David On Jan 13, 2004, at 10:12 AM, David Witham wrote: > Hi, > > I have a query that returns data like this: > > cust_id cust_name month cost revenue margin > 991234 ABC 2003-07-01 10 15 5 > 991234 ABC 2003-08-01 11 17 6 > 991234 ABC 2003-09-01 12 19 7 > 991235 XYZ 2003-07-01 13 21 8 > 991235 XYZ 2003-08-01 12 19 7 > 991235 XYZ 2003-09-01 11 17 6 > > I want to turn it around so it displays like this: > > 991234,ABC,2003-07-01,10,15,5,2003-08-01,11,17,6,2003-09-01,12,19,7 > 991235,XYZ,2003-07-01,13,21,8,2003-08-01,12,19,7,2003-09-01,11,17,6 > > (I've used commas to shorten the layout for the example) > > Does anyone have some ideas on how to do this? I'd suggest looking at tablefunc in /contrib. It includes crosstab functionality that you might find useful. I don't think it'll do exactly what you describe here, but something quite similar. Michael Glaesemann grzm myrealbox com
El Lun 12 Ene 2004 22:12, David Witham escribió:
>DW: Hi,
>DW:
>DW: I have a query that returns data like this:
>DW:
>DW: cust_id cust_name month cost revenue margin
>DW: 991234 ABC 2003-07-01 10 15 5
>DW: 991234 ABC 2003-08-01 11 17 6
>DW: 991234 ABC 2003-09-01 12 19 7
>DW: 991235 XYZ 2003-07-01 13 21 8
>DW: 991235 XYZ 2003-08-01 12 19 7
>DW: 991235 XYZ 2003-09-01 11 17 6
>DW:
>DW: I want to turn it around so it displays like this:
>DW:
>DW: 991234,ABC,2003-07-01,10,15,5,2003-08-01,11,17,6,2003-09-01,12,19,7
>DW: 991235,XYZ,2003-07-01,13,21,8,2003-08-01,12,19,7,2003-09-01,11,17,6
Hi, the following query
select cust_id || ', ' || cust_name || ', ' || list(month::text || ', ' ||
cost || ', ' || revenue || ', ' || margin) as result from tmp122 group by
cust_id, cust_name;
*DISPLAYS* data like this:
result
-----------------------------------------------------------------------------
----- 991234, ABC, 2003-07-01, 10, 15, 5, 2003-08-01, 11, 17, 6, 2003-09-01,12, 19, 7991235, XYZ, 2003-07-01, 13, 21,
8,2003-08-01, 12, 19, 7, 2003-09-01, 11,
17, 6
(2 rows)
the type 'list' and the function 'comma_cat' (I cannot remember where I took
it, but are very useful)...
CREATE FUNCTION comma_cat (text, text) RETURNS text AS 'select case
WHEN $2 is null or $2 = '''' THEN $1
WHEN $1 is null or $1 = '''' THEN $2
ELSE $1 || '', '' || $2
END' LANGUAGE sql;
CREATE AGGREGATE list ( BASETYPE = text, SFUNC = comma_cat, STYPE = text, INITCOND = ''
);
-- Original data for test --
drop table tmp122;
create temp table tmp122 ( cust_id integer, cust_name varchar, month date, cost
integer, revenue integer, margin integer
);
copy tmp122 from stdin;
991234 ABC 2003-07-01 10 15 5
991234 ABC 2003-08-01 11 17 6
991234 ABC 2003-09-01 12 19 7
991235 XYZ 2003-07-01 13 21 8
991235 XYZ 2003-08-01 12 19 7
991235 XYZ 2003-09-01 11 17 6
\.
--
Chau, Luis
El Lun 12 Ene 2004 22:12, David Witham escribió:
>DW: Hi,
>DW:
>DW: I have a query that returns data like this:
>DW:
>DW: cust_id cust_name month cost revenue margin
>DW: 991234 ABC 2003-07-01 10 15 5
>DW: 991234 ABC 2003-08-01 11 17 6
>DW: 991234 ABC 2003-09-01 12 19 7
>DW: 991235 XYZ 2003-07-01 13 21 8
>DW: 991235 XYZ 2003-08-01 12 19 7
>DW: 991235 XYZ 2003-09-01 11 17 6
>DW:
>DW: I want to turn it around so it displays like this:
>DW:
>DW: 991234,ABC,2003-07-01,10,15,5,2003-08-01,11,17,6,2003-09-01,12,19,7
>DW: 991235,XYZ,2003-07-01,13,21,8,2003-08-01,12,19,7,2003-09-01,11,17,6
Hi, the following query
select cust_id || ', ' || cust_name || ', ' || list(month::text || ', ' ||
cost || ', ' || revenue || ', ' || margin) as result from tmp122 group by
cust_id, cust_name;
*DISPLAYS* data like this:
result
----------------------------------------------------------------------------------991234, ABC, 2003-07-01, 10, 15, 5,
2003-08-01,11, 17, 6, 2003-09-01, 12,
19, 7991235, XYZ, 2003-07-01, 13, 21, 8, 2003-08-01, 12, 19, 7, 2003-09-01, 11,
17, 6
(2 rows)
-- Original data for test --
drop table tmp122;
create temp table tmp122 ( cust_id integer, cust_name varchar, month date, cost
integer, revenue integer, margin integer
);
copy tmp122 from stdin;
991234 ABC 2003-07-01 10 15 5
991234 ABC 2003-08-01 11 17 6
991234 ABC 2003-09-01 12 19 7
991235 XYZ 2003-07-01 13 21 8
991235 XYZ 2003-08-01 12 19 7
991235 XYZ 2003-09-01 11 17 6
\.
--
Chau, Luis Carlos Ferreira