What are the main differences between primary key and unique key?
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Define the relationship between ‘view’ and ‘data independence’.
Explain snapshot replication.
user says the db performance is slow or yesterday the query runned 1min and today its taking 30 min. how to trouble shot or were to start with?
What is database url?
What are good databases?
Is access a database?
What is the use of drop command?
There are 100 datafiles, numbered from 1 to 100. File number 10 is deleted and it has 500 MB of data. The database is working in archive log mode. How can be the database recovered ? While doing recovery the archive logs applied are from nos 1 to 100, but 50 gets corrupted. What do we do? Can we proceed further? If so how?
What are the basic elements of Base configuration of an oracle Database ?
What is database management system(dbms)?
What are the various normalizations in database?
Why do we study dbms?
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