Comments on: Pivot dynamic data with pipelined function

By: Judy

Judy — Tue, 23 Dec 2008 14:55:03 +0000

Really useful piece of code:
But in the precise usage I have for it, it is failing! for example

“Select count(*) from Table( pivot (’select compound, method,RESULT from
ALLRES_XXXX_VIEW3 where
resultname = ”EC50”’))”

ERROR at line 1:
ORA-00902: invalid datatype.

If works fine if ‘method’ is not used as the pivoting element ( the column heading). Method is a concatentated string coming from another view. Is the concatenation the problem? Do I need to materialiase my views?

Judy

By: anton

anton — Thu, 19 Jun 2008 13:27:21 +0000

ODCITableDescribe is only called when your SQL-statement (pivotimpl.show) is not in the SGA. The different aurgument makes the SQL-statement different, ODCITableDescribe is called and the number of columns in the output can change.

By: Hari

Hari — Fri, 29 Feb 2008 17:30:38 +0000

Hi
For the function pivotimpl.show( 8 ), pivotimpl.show( 7 ) what does this argument do? I see its returning a dummy number but the columns and results change based on the argument you are passing. Can anyone explain me this.

By: Lucas Jellema

Lucas Jellema — Thu, 27 Jul 2006 07:52:54 +0000

I know of reason why it would not work on 9i. However, I have not tested it. Testing it would be little effort for you if you have a 9i database at your disposal – please let us know the outcome of that test.

best regards,

Lucas

By: Tarun Sharma

Tarun Sharma — Wed, 26 Jul 2006 08:00:01 +0000

Does it work on Oracle 9i?

By: MikeMM

MikeMM — Mon, 10 Jul 2006 08:58:46 +0000

I agree with Mr. Ed and in accounting departments, reports are always presented that way. The number of colums is dynamic. Though this can be done using Oracle Reports Builder, a handy query like this is a good alternative since you can’t always use reports to show your data.

My question is, does pipelined function work with 9i? I looked at pivot.sql and it noticed there’s quite a number of lines required to make this thing work. But anyhow, this is an amazing stuff!

By: LewisC

LewisC — Fri, 02 Jun 2006 22:13:31 +0000

Niice entry! I finally got the time to read this completely and I can immediately find uses for this in the DW. Now I have to do some performance testing.

LewisC

By: Mr. Ed

Mr. Ed — Wed, 17 May 2006 01:49:46 +0000

Why pivot? Because this:

Jan Feb Mar
US $100 $300 $500
Austria $130 $80 $110
Mexico $200 $250 $400

Looks a lot better (easier to read, more intuitive) than this:

(US,Jan,$100)
(US,Feb,$300)
(US,Mar,$500)
(Austria,Jan,$130)
(Austria,Feb,$80)
(Austria,Mar,$110)
(Mexico,Jan,$200)
(Mexico,Feb,$250)
(Mexico,Mar,$400)

2-dimensional data just looks better in this simple format.

Some part has to do the pivot. In many cases, it’s most convenient in the database layer.

By: Lucas Jellema

Lucas Jellema — Tue, 16 May 2006 16:36:33 +0000

Anton, like they said on OTN, this is really amazing stuff. Cool!

Note: I got it to work on 10gR2, but not on 10gR1 (10.1.0.2)