Limit the records return by a select query

Question

I have select query as follows
select id,name,designation from emlpoyyee;
it is returning 20 rows.Is there any way to limit the records from a range to another range. eg -first 10 records. or 10-20 records e.t.c
Thanks for any help

Answer 1

For the case of first 10 or 20 row u can use
select * from <table> where rownum <=<number>;
select * from emp where rownum <=20;
For the case of 10-20 record of something of range , there need to use partition on select as :
select * from ( select <your_columnns1>, <your_columnns2>, row_number() over (partition by null order by null) sequence from <your_table>) where sequence between <lower_limit> and <upper_limit>;
select * from ( select empno, empname row_number() over (partition by null order by null) sequence from emp) where sequence between 10 and 20;
Try it and reply in case of any issue.