SQL Multiple Columns Displayed in a Single Row

Hello everyone,
I have 2 tables, Product and Product_Name, one Product can have more than one name.
I need to retrieve it in such a way that I show the Product_ID followed by all the names this product has.
I'm not able to make it, every way I try I get the Product ID duplicated and several rows with a different product name on each row as follows:
1, 'Iron Z"
1, 'Iron M'
1, 'Iron N'
2, 'Wood P'
2, 'Wood M'
What I need is:
1, Iron Z, Iron M, Iron N
2, Wood P, Wood M
Thanks and Regards.

Hi,
user10103934 wrote:
Thank you for the answer Frank,
Iron Z, Iron M and Iron N would be 3 different entries on the same column.
I'm sure the LISTAGG function would resolve this, the problem is that I was hoping to get a solution on pure SQL or PL/SQL, maybe with a nested Select.
My Oracle version is 10g Express Edition.LISTAGG is pure SQL, but it was only introduced in Oracle 11.2. Everything mentioned below should work in Oracle 10.
The STRAGG function from that page is very useful. You have to copy and install about 60 line of PL/SQL code. Do that once, and then you can use it hundreds of times in hundreds of queries, just as if it was a built-in function. The main problem with STRAGG is that it's hard to get soprted output from it. There's a modified version, designed for sorted output, on this thread:
http://asktom.oracle.com/pls/asktom/f?p=100:11:0::::P11_QUESTION_ID:15637744429336
Never used it. Can't vouch for it.
SYS_CONNECT_BY_PATH seems to be the most popular way of doing string aggregation in Oracle 10. The example given on the Oracle Base page (which I posted in my last message) is a little clumsy and inefficient. See the following thread for a better example, using CONNECT_BY_ISLEAF:
Re: Concatenate strings from more rows into one row.
or, now that I see it, Pollywog's example above.
Edited by: Frank Kulash on Jun 11, 2010 2:24 PM

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