Answer / akshita

delete from emp where rowid not in (select max(rowid) from
emp group by empno)

Answer / mail2sentha

DELETE FROM EMP WHERE ROWID NOT IN(SELECT MIN(ROWID)FROM
EMP GROUP BY EMPID);

Answer / rohit kumar

Delete from employee where (empid,empname) notin (select min
(empid),empname from employee group by enmpname);

Answer / ajit

DELETE FROM EMP WHERE EMPID= 5 AND ROWNUM < 2;

Answer / guest

u can delete by slelcting the rowid of that particular
record

Answer / his highness yadav

ur question is not much clear

is it to delete duplicate rows or

to delete all the rows which is repeating , and the original

fr the first the query above will work fine

second option try this

delete from emp a, emp b where a.empno=b.empno

i think this will go ,, this will delete the all records which
is duplicating


cheers

Answer / prajyot

Hi,

You can use the below mentioned query ....

SELECT ROWID( Emp_id ) FROM EMP WHERE Emp_id = 5;

Praj

Answer / vijay

Delete from emp where empid=5;

What is pragma in sql?

0 Answers  

What are the operators in sql?

0 Answers  

what is bcp? When does it used? : Sql dba

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  

How to select all records from the table?

0 Answers  

What is the difference between UNIQUE CONSTRAINT and PRIMARY KEY? 1. There is no difference. 2. A PRIMARY KEY cannot be declared on multiple columns. 3. A UNIQUE CONSTRAINT cannot be declared on multiple columns. 4. A table can have multiple PRIMARY KEYS but only one UNIQUE CONSTRAINT. 5. A table can have multiple UNIQUE CONSTRAINTs but only one PRIMARY KEY.

7 Answers   Satyam,

what is msql? : Sql dba

0 Answers  

How to create a table using constraints... IF i change the PARENT KEY value ,then CHILD KEY table will also to change in the another table... plz reply ur answers @ mak2786@gmail.com Arunkumar

3 Answers  

What is sql table?

0 Answers  

difference between cursor and procedure in a package

3 Answers   PCS,

I WANT INFORMATION ABOUT SAS SOFTWARE USING FINANCIAL COMPANIES LIST, PLESE GIVE ME DETAILS ABOUT

1 Answers   AOL,

What does “select count(*) from tab” result?

15 Answers   IBM, Student, Wipro,