Fetching Records by Records

Question

I have table of 1 crore records and i want to insert the records into another table for back up.I am selecting 10,000 records
each time and inserting into backup table.
I am selecting records using rownum. After inserting first 10,000 records How can i select next 10,000 records?.
Declare
type t1 is ref cursor;
emp_old t1;
x emp%rowtype;
begin
open emp_old for select * from emp where rownum<10000;
loop
fetch emp_old into x;
exit when emp_old%notfound;
insert into emp_backup values(x.empno,x.ename,x.sal);
end loop;
close emp_old;
end;

Answer 1

Please use English terms when you post. The term 'crore' is inappropriate for the forums.
>
I have table of 1 crore records and i want to insert the records into another table for back up.I am selecting 10,000 records
each time and inserting into backup table.
I am selecting records using rownum. After inserting first 10,000 records How can i select next 10,000 records?.
>
Why? Just query the rows and insert them. There is no concept of 'next row' in an Oracle table. Rows in a table are like balls in a basket; there is no first or last or any order associated with them.
The easiest and quickest way is to create the table at the same time
CREATE TABLE myBackup NOLOGGING as SELECT * FROM myTable;