How can I limit the number of rows in Oracle?

Hi All,
I am using very complex query where I join 6 table to fetch data from database.
I have requirement like fetching a first 10000 row and then fetching another records after 10000 and so on.
I just want to know how to fetch a limited number of rows using sql query. Moreover, I also want to know how to calculate the total number of row (alternative of count method because I don't want to query the database twice because its affect the performance).
Thanks in advance.
Regards,
Sunny

sunny@oimnewbie wrote:
Hi All,
I am using very complex query where I join 6 table to fetch data from database.
I have requirement like fetching a first 10000 row and then fetching another records after 10000 and so on.
I just want to know how to fetch a limited number of rows using sql query. Moreover, I also want to know how to calculate the total number of row (alternative of count method because I don't want to query the database twice because its affect the performance).
Thanks in advance.
Regards,
SunnyThis smells like a very fishy requirement based on a fundamental misunderstanding of how Oracle works. Could you explain why you want to arbitrarily limit the result set to 1000 rows? What will happen between that and getting the "next" 1000? What triggers getting the "next" 1000? and how do you define "next", since there is no ordering in a heap table.
I suspect we can make that requirement go away be presenting a better approach to the real issue.

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