Interested to Buy Any Domain ? << Click Here >> for more details...
The table has 3 columns 4 rows. The output is which column has least null values( A COL SHOULD BE THE OUTPUT)
Write the query plz.
A B C
----------
1 NULL 7
2 4 NULL
NULL 5 NULL
3 NULL NULL
- 1 Answers
- 3280 Views
- TCS, I also Faced
- E-Mail Answers
Answer / rameshganesan
Select (Case
When a = Least Then (select 'O/P A ='||ListAgg(a,' ') Within Group(order by a) from Least_Col)
When b =Least Then (select 'O/P B ='||ListAgg(b,' ') Within Group(order by b) from Least_Col)
Else (select 'O/P C ='||ListAgg(c,' ') Within Group(order by c) from Least_Col) end)ab
From (Select count(a) a,count(b) b,count(c) c,greatest(count(a),count(b),count(c)) Least From Least_Col);
| Is This Answer Correct ? | 0 Yes | 0 No |
What is a dead lock in oracle?
In my table i have 4 columns with 100 records but in that 4 columns one column contains all NULL values so can i add NOT NULL CONSTRAINT on that column......... ok if it is not possible, can i add NOT NULL CONSTRAINT from 101 Record Onwards?
What are the types of partitions in oracle?
how to hide the stored procedure inside a package
How do I limit the number of oracle database connections generated by weblogic server?
dear sir/madam, i have done my engg in 2007 after that i did oracle course (sql,plsql,forms,reports) .from 2008 to 2009 i searched job but didnt got.so i planned to move to sales field & i gone to dubai.till now i m in sales only.now i want to shift my career in to IT industry.but now people are not hiring as fresher.so i planned put fake 1 + exp. is it good or bad or any other way is there to enter in IT.please suggest me or call me 09632087338.
what is view?
what is the syntax of DELETE command?
How to shutdown your 10g xe server from command line?
When does a Transaction end ?
how to code performance tuning of oracle PL/SQL? can any body send me the perfect answer?
Explain the use of constraints option in exp command.
Oracle General 
