What is the concept of sub-query in terms of sql?
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What is the role of tables in database?
What is a database in a website?
What are foreign keys in database?
What do you mean by denormalization?
What are the examples of database?
What do you understand by intension and extension?
Suppose database is running slow, what will you do?
What is the use of CONSTRAINTS option in EXP command ?
Explain the importance of database partitioning.
Define entity, entity type, and entity set.
What is the main purpose of a database?
Which database is used by google?