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Question:  minvalue.sql Select the Nth lowest value from a table


Answer:
select level, min('col_name') from my_table where level = '&n' connect by prior ('col_name') <
'col_name')
group by level;
Example:
Given a table called emp with the following columns:
-- id number
-- name varchar2(20)
-- sal number
--
-- For the second lowest salary:
-- select level, min(sal) from emp
-- where level=2
-- connect by prior sal < sal
-- group by level


April 04, 2007 16:01:03 #4
 tina_0091   Member Since: April 2007    Total Comments: 2 

RE: minvalue.sql Select the Nth lowest value from a ta...
 
Use the top-analysis feature which introduce from oracle 8i:

SELECT rownum, empno, ename, sal
FROM (SELECT empno, ename, sal from emp 
           ORDER BY sal )
WHERE rownum < n; (n=any valid integer)

Thanks,
Tina K.
     

 

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