What is the usage of the distinct keyword?
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What is group by in sql?
please explain database architecture..
How do you declare a variable in pl sql?
What is not equal in sql?
Types of joins ?
What are the advantages of normalization?
What is a database trigger?
Explain how can you save or place your msg in a table?
Is drop table faster than truncate?
Explain how to use transactions efficiently : transact sql
What is sql not null constraint?
Name three sql operations that perform a sort.
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