select only new row in oracle

Posted by Hlex on Stack Overflow See other posts from Stack Overflow or by Hlex
Published on 2010-03-23T15:38:47Z Indexed on 2010/03/23 16:13 UTC
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Oracle

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query

Hi, I have table with "varchar2" as primary key.
Transaction is about 1 000 000 per day.

my app wake up every 5 minute to generate text file by query only new record.
It will remember last point and do only new record.

1)Do you have idea how query with good performance?
I able to add new column if need.

2)what do you think this process should do by?

plsql?
java?

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