Tell me one complex query in oracle ?
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Answer / prateek
select distinct sal from emp e1 where 3 = (select count(distinct sal) from emp e2 where e1.sal <= e2.sal);
| Is This Answer Correct ? | 0 Yes | 0 No |
Answer / mahaboob basha
select users.user_id, users.email, max(classified_ads.posted)
from users, classified_ads
where users.user_id = classified_ads.user_id
group by users.user_id, users.email
order by upper(users.email);
| Is This Answer Correct ? | 0 Yes | 4 No |
What is informatica? What exactly are the practical uses in real world
In a mapping i have three dimensions. If i want to pass a same surrogate key value to all the three dimensions by using one sequence generator is possible?If the mapping is containing single flow? And in the same case if the mapping is contaning 3 flows for the three dimensions then by using one sequence generator can we populate surrogate key (same value) to all the three dimensions?
How can we create index after completion of load process?
When you move from devel to prod how will you retain a variable
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difference between informatica 8.1.1 and 8.6
How big was your fact table
How do you migrate data from one environment to another?
How to delete duplicate record in Informatica?
How to update source definition?
what is session override?
how the server recognises , if the session fails after loading the 100 records in to the target