How to execute a stored program unit?
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Why do we use coalesce function in oracle?
Can you drop an index associated with a unique or primary key constraint?
What is meant by joins? List out the types of joins.
Explain the use of consistent option in exp command.
What is control file used for?
What privilege is needed for a user to connect to oracle server?
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What is the difference between online and offline backups?
How to drop an index in oracle?
What is the difference between sharding and replication?
How are the index updates?
I have a table emp. There is only one column in the table. In that , there are only three rows in that column. The value in the first row is 'A' and the value in the second row is 'B' and the third row is 'C'. Now, my question is , How will you write a select query to display the output as B C A Note: order by cannot be used coz it gives us output as CBA. But the output should be BCA.