What Is Rdbms?
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How to make a column nullable?
What are constraints? Explain different types of constraints?
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What are “unrepeatable reads”?
Tell me what is the order in which the sql query is executed?
what is the main difference between constraints(like primary key etc..)& joins?
Explain candidate key, alternate key, and composite key?
What is data file in computer?
What are the steps you will take to improve the performance of a poor performing query?
List out the difference between union and union all in sql server?
What is failover clustering overview?
What does nvl stand for?
Differnce between sel server 2000 and 2005
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