Answer / ajit nayak

select *from emp
minus
select *
from emp
where rownum <= (select count(*)-3 from
emp);

Answer / swastik

SELECT * FROM
(
SELECT * FROM Emp
ORDER BY ROWNUM DESC
)
WHERE ROWNUM <= 3;

Answer / ashwin

if emp table is having 10 records then
1)for first 6 write

select ename,sal from(select ename,sal from emp order by sal
desc) where rownum <7;

2)for last 3 write

select ename,sal from(select ename,sal from emp order by sal
desc) where rownum >7;

Answer / sanjay

SELECT ROWNUM AS rank, employee_id
FROM (SELECT employee_id
FROM employees
ORDER BY employee_id DESC)
WHERE ROWNUM<=3

Answer / shekaran04

Hi,
First thing you cannot use " ROWNUM > (somthing) "
And to get last three records...

Select *from emp
minus
Select *from emp where rownum <(select Count(*) from emp)-
3;

Good Luck...

Answer / mohammed shahid

select distinct TOP3 from emp order by rownum desc;

What is offset in sql query?

0 Answers  

is mysql query is case sensitive? : Sql dba

0 Answers  

2. Select A.A from ( select 1 as from dual Union select 1 as from dual)A Full outer join ( select 1 B from dual Union select 2 B from dual)B On A.A=B.B

2 Answers   Fintellix,

What is the difference between view and stored procedure?

0 Answers  

What is the difference between instead of trigger and after trigger?

0 Answers  

What is the difference between inner join and outer join?

0 Answers  

i have a table emp and columns ename,empno,mgr_id,i need ename,manager name as result i.e employee respective manager.. example empno ename mgr_id 1 john 3 2 paul 3 3 smith 1 4 kevin 1 5 stewart 2 result has to look like this ename manager john smith paul smith smith john kevin john stewart paul can u plz help me out in this.....

8 Answers  

How do I truncate a word?

0 Answers  

Hi, I am new in oracle(SQL), could anyone help me in writing a correct SQL. Below is the table structure. Table: Subsc Fields: 1. Sub_no (this field will hold values of subscriber nos, for e.g. S111111, S222222, S333333, S444444, etc.) 2. s_status (this field will hold values for different status of subscriber, for e.g. 'A', 'S', 'C', etc.) 3. cus_id (this field will hold values of bill nos for e.g. 11111111, 22222222, 33333333, 44444444, etc.) Table: Bill Fields: 1. Bill_no this field will hold values of bill nos for e.g. 11111111, 22222222, 33333333, 44444444, etc.) 2. b_status = (this field will hold values for different status of bill for e.g. 'O', 'C', 'S', etc.) Note: 1. The Sub_no is a Primary key of Subsc table. 2. The cus_id is a foreign in Subsc table (referred from Bill_no field of Bill table) 3. The Bill_no field is the Primary key of Bill table. Query A --> I wrote a query to select cus_id/Bill_no which is in status open (b_status = 'O') and having more than two active subscriber (i.e. S_status = 'A') in it ( i.e. more the two subscribers in same bill). select s.cus_id from subsc s where exists (select 1 from bill where bill_no = s.cus_id and b_status = 'O') and s_status = 'A' group by s.cus_id having count(sub_no) = 2 Problem : The above query will give the cus_id (or rather bill_no) which are in open status (b_status ='O) and which are having TWO ACTIVE Subscribers (s_status ='A') in it. However, this query will also lists the cus_id/bill_no which are having more than TWO subscribers in it (but only two subscriber will be in Active status (s_status = 'A') and the others will be in s_status = 'C' or s_status = 'S'. Help needed: I want to write a query which will fetch ONLY the cus_id/bill_no which are in open status (b_status ='O') and which are having ONLY TWO ACTIVE subscribers (s_status ='A') in it. B--> If I include the sub_no in the above query then NO row are returned. select s.cus_id, s.sub_no from subsc s where exists (select 1 from bill where bill_no = s.cus_id and b_status = 'O') and s_status = 'A' group by s.cus_id, s.sub_no having count(sub_no) = 2 Help needed: I want to modify the above query which will fetch ONLY the cus_id/bill_no which are in open status (b_status ='O') and which are having ONLY TWO ACTIVE subscribers (s_status ='A') in it ALONG with the sub_no. Thanks a lot in advance. Regards, Nitin

0 Answers  

what is the difference between varray and table data type..please expalain with some examples... under what situation you will go for varray..instead of index by table...

1 Answers   HCL, Satyam,

What is program debugging?

0 Answers  

Is sqlexception checked or unchecked?

0 Answers