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one of the column in my table contains the data like
SAL
----
1000
1000
2000
3000
3000

So my requirement is i want output like
SAL
---
1000
2000
3000

it mean i want to delete duplicate rows only how should u
write query?

Question Posted / sivanagaraju

Answers were Sorted based on User's Feedback



one of the column in my table contains the data like SAL ---- 1000 1000 2000 3000 3000 So ..

Answer / yaswanth

select distinct(SAL) as SAL from table_name;

Is This Answer Correct ?    17 Yes 2 No

one of the column in my table contains the data like SAL ---- 1000 1000 2000 3000 3000 So ..

Answer / yaswanth

delete from employees where rowid NOT IN(select max(rowid) from employees GROUP BY salary)

Is This Answer Correct ?    7 Yes 2 No

one of the column in my table contains the data like SAL ---- 1000 1000 2000 3000 3000 So ..

Answer / mohannad amarneh

select distinct(sal) from my_table;

Is This Answer Correct ?    8 Yes 4 No

one of the column in my table contains the data like SAL ---- 1000 1000 2000 3000 3000 So ..

Answer / annalakshmi.s

select distinct(salary) from tablename

Example:

employee is the table name

salary is the column name means

select distinct(salary) from employee

Is This Answer Correct ?    3 Yes 0 No

one of the column in my table contains the data like SAL ---- 1000 1000 2000 3000 3000 So ..

Answer / hiya

select n from (select row_number()over (partition by n order
by n) r,n from test group by n having count(*)>1)

Is This Answer Correct ?    1 Yes 0 No

one of the column in my table contains the data like SAL ---- 1000 1000 2000 3000 3000 So ..

Answer / manju

Select sal from emp group by sal having count(*)>=1

Is This Answer Correct ?    2 Yes 1 No

one of the column in my table contains the data like SAL ---- 1000 1000 2000 3000 3000 So ..

Answer / swastik

DELETE FROM Emp A
WHERE ROWID NOT IN
                  (
                   SELECT MIN(ROWID)
                   FROM Emp B
                   WHERE A.Sal = B.Sal
                  )

Is This Answer Correct ?    1 Yes 0 No

one of the column in my table contains the data like SAL ---- 1000 1000 2000 3000 3000 So ..

Answer / suma

can we use group by?

Is This Answer Correct ?    0 Yes 0 No

one of the column in my table contains the data like SAL ---- 1000 1000 2000 3000 3000 So ..

Answer / sandeep sudunagunta

Select sal form from my_table group by sal having count(*)>1

Is This Answer Correct ?    1 Yes 1 No

Post New Answer

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