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What is rdbms data?
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What is 2nf in database?
Explain armstrong rules? How they are complete and/or sound?
What are queries in dbms?
Explain a checkpoint and when does it occur?
Let?s say you have 100,000 records and you want to delete 95,000 at a time and keep only 5 thousand. But in local memory you don?t have enough space for 95,000 records. What do you do in this case? How do you delete without any problem with time and performance?
Why is foreign key used?
what is the difference between securityand protection in dbms?
What is 1nf?
How do we select distinct values from a table?
I need data on eBay customers in Chicago who can did bid on certain item? I dont have access to eBay database directly. How I get the information?
What is the concept of sub-query in terms of sql?
Operators used in select statements are?
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