Showing posts with label round. Show all posts
Showing posts with label round. Show all posts

Monday, February 20, 2012

Multiple Rows

Hi, can anyone think of how to get round this. I am using MS Excel Query on my Oracle database.

I want to make a spreadsheet showing account number, customer 1, customer 2, customer 3. There is an accounts table, an accounts_links table which links the customers to the accounts and a customers table.

On the accounts_links table there is one row for each customer on an account with a "holder number" to say if it is customer 1, 2 or 3.

At the moment I am only bringing back accounts where there are 3 customers. Some accounts will only have 1 or 2 customers.

I thought to bring in the accounts_links and customers tables in three times now it is just multiplying all the rows together!

Can anyone think of a way round this to run it in one sql, I don't want to have to use excel functions.

Thanks,
BethIf I've interpreted your issue correctly, here is one suggestion to try:
SELECT a.account_number, MAX(CASE a1.holder_number WHEN 1 THEN c.customer_name END) customer_1,
MAX(CASE a1.holder_number WHEN 2 THEN c.customer_name END) customer_2,
MAX(CASE a1.holder_number WHEN 3 THEN c.customer_name END) customer_3
FROM accounts a, accounts_link al, customer c
WHERE a.a_primary_key = al.al_primary_key
AND a1.al_primary_key = c.c_primary_key
GROUP BY a.account_number

You'll have to edit this to provide the appropriate columns for the WHERE join columns.

Originally posted by elisabeth
Hi, can anyone think of how to get round this. I am using MS Excel Query on my Oracle database.

I want to make a spreadsheet showing account number, customer 1, customer 2, customer 3. There is an accounts table, an accounts_links table which links the customers to the accounts and a customers table.

On the accounts_links table there is one row for each customer on an account with a "holder number" to say if it is customer 1, 2 or 3.

At the moment I am only bringing back accounts where there are 3 customers. Some accounts will only have 1 or 2 customers.

I thought to bring in the accounts_links and customers tables in three times now it is just multiplying all the rows together!

Can anyone think of a way round this to run it in one sql, I don't want to have to use excel functions.

Thanks,
Beth