SUPRESS REPEATING VALUES

Question

Hi,
I have a customer table which I am joining with an address table and another customer code table. There may be many codes and addreses for a CUSTOMER. I need to run a sql statement which will give me output like this.
CUSTOMER_ID addr1 code
10000 100 Main street, My city... 20
200 My Street, That City.... 30
283 That Street, City1 ..... 40
20000 103 Any Street, City2 .... 912
102 My Road, City3 ..... 210
How could I do this? Is this only possible with break command in sqlplus? If I want to get the output like this for an application, how could I do it?
Thanks in advance for any help.
Sethu

Answer 1

The formatting and presentation of data is something that logically belongs in the presentation layer, so it is something that your application really needs to handle. Precisely how you handle it really depends on your application's architecture. If you are displaying data in some sort of grid control, for example, the grid control may have a setting to supress duplicates.
I suspect that this would be total overkill, but you could use the CURSOR function to return a customer_id and a ResultSet of the address & code values associated with that customer_id. Something like
SELECT customer_id,
       CURSOR( SELECT addr1, code
                 FROM <<table name>> inner
                WHERE inner.customer_id = outer.customer_id )
  FROM <<table name>> outerJustin
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