Explain data dictionary.
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What is the use of ROWS option in EXP command ?
What is stored in a database?
Can A column defined as PRIMARY KEY can have NULL values ?
What is database implementation?
What is the difference between a catalog and a database?
What does <> mean in database?
What is a logical backup ?
What are the two types of indexes and explain them in detail? Or what's the difference between clustered and non-clustered indexes?
What is data model example?
Explain the terms specialization and generalization.
wHAT IS THE difference between foreign key and reference key
What are the types of distributed database?
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