What is a system tablespace?
What are the roles of dba?
What does sharding mean?
What is merge statement used for?
Explain self joins in oracle?
There is a big table with "n" of rows and 40 + columns .It doesn't have primary key.How do you select the primary key. In other words how do you get the duplicate records.
How to open and close an explicit cursor in oracle?
emp numb is unique because that is primary key,,but what is foreign key .. explain very clear with example
How to fetch the row which has the max value for a column?
What is meant by an index?
What is pragma autonomous transaction in oracle?
what is the scenario where you take the database to NoArchivelog mode?
What do you mean by group by clause?