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Collapsing results to a single row.

Collapsing results to a single row.

Collapsing results to a single row.

Question about formatting my query results.

I have a customer table and a customer_phone table linked by customer_id field.

When I select records from customer_phone for a particular customer_id I get as many rows as the customer has phone numbers.

For example

select * from customer_phone where customer_id = 123;


Customer_Id    Phone
123            123-345-4567
123            123-345-9987
123            123-345-2232

What I would like is to be able to collapse that to one result somehow but I do not have a clue.

so something like

Customer_Id  Phone1           Phone2            Phone3
123           123-345-4567    123-345-9987      123-345-2232

Any thoughts would be appreciated.


RE: Collapsing results to a single row.

my first thought is, this shouldn't have been posted in the ANSI SQL forum

could you mention which database system you're using, please?

also, why couldn't you do the crosstab layout (as that's what it's called) in your application language?

r937.com | rudy.ca
Buy my new book Simply SQL from Amazon

RE: Collapsing results to a single row.

whoa, LISTAGG...  first i've heard of that

nice one


r937.com | rudy.ca
Buy my new book Simply SQL from Amazon

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