Query to get max and second max in oracle in one query ?
Answers were Sorted based on User's Feedback
Answer / sumit wadhwa
select distinct(a.colname) from table a where &n=(select
count(distinct(b.colname)) from table b where
a.colname<=b.colname);
from this query u can find out Nth MAX in a one query
eg
select distinct(a.sal) from emp a where &n=(select count
(distinct(b.sal)) from emp b where a.sal<=b.sal);
Is This Answer Correct ? | 55 Yes | 16 No |
Answer / sumit wadhwa
for max
select a.sal
from emp a
where 1=(select distinct(count(b.sal))
from emp b
where a.sal<=b.sal);
for second max
select a.sal
from emp a
where 2=(select distinct(count(b.sal))
from emp b
where a.sal<=b.sal)
Is This Answer Correct ? | 33 Yes | 11 No |
SELECT sal FROM(SELECT DISTINCT(sal) FROM employees ORDER
BY sal DESC) WHERE ROWNUM<=2;
Is This Answer Correct ? | 23 Yes | 2 No |
Answer / mehul
select max(sal) from emp where sal not in ( select max(sal)
from emp)
Is This Answer Correct ? | 29 Yes | 12 No |
Answer / rohit
The below query will provide the max and second max in
oracle in one query
select * from emp e
where 0 = (select count(sal) from emp
where e.sal < sal)
or 1 = (select count(sal) from emp
where e.sal < sal);
Is This Answer Correct ? | 17 Yes | 8 No |
Answer / mats önnerby
--- Three level query
--- 1. Find and order all distinct salaries
--- 2. Pick the two top salaries
--- 3. Get all information about employees with that salary
select *
from emp
where sal in (
select sal from (
select distinct sal
from emp
order by sal desc)
where rownum <= 2);
---
--- Simple and straight forward but will return
--- several employees in case they have the same salary
---
Is This Answer Correct ? | 12 Yes | 3 No |
Answer / lokanath
select * from emp a where 2 > (select count(distinct sal)
from emp b where b.sal > a.sal)
or else use Top Window functions (or) Analatical functions
select * from
(
select empno,ename,sal,rank() over (order by sal desc)
test from emp
)
where test <= 2
Is This Answer Correct ? | 12 Yes | 4 No |
Answer / subodh tiwari
SELECT ENAME,SAL FROM (SELECT ENAME,SAL FROM EMP ORDER BY
SAL DESC) WHERE ROWNUM<=2
Is This Answer Correct ? | 15 Yes | 9 No |
Answer / answer
NO NEED TO WATCH ANY OTHER ANSWER .ANSWER 11 IS GOOD.JUST
GO WITH IT
Is This Answer Correct ? | 6 Yes | 2 No |
Answer / bhanu yadav
For Nth Max.
select distinct a.sal from emp a where &N= (select count
(distinct b.sal) from emp b where b.sal>=a.sal)
For Nth Min.
select distinct a.sal from emp a where &N= (select count
(distinct b.sal) from emp b where b.sal<=a.sal)
Is This Answer Correct ? | 9 Yes | 6 No |
Why do I get unexpected characters from 8-bit character sets in weblogic jdriver for oracle?
What is oracle in java?
Explain mutating triggers.
how to retrive xml data for using sql query?
What query tells you how much space a tablespace named test is taking up, and how much space is remaining?
Differentiate between TRUNCATE and DELETE?
What is hot backup and logical backup?
1.how to extract the second highest salary from emp table having sal as a column which contains the salary of all employee of an organisation.
What is rowid and rownum in oracle?
What are the different types of partitions in oracle?
What is procedure overloading in oracle?
How to bring a tablespace online?