Databases Interview Questions For Freshers

What is a relational database?

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What are the advantages of using a database?

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Name three popular database management systems.

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What is a table in a database?

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Explain the concept of normalization in databases.

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What is a primary key?

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What is a foreign key?

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What is SQL?

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What are CRUD operations?

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What is a database?

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What is ACID in the context of databases?

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What is indexing in databases?

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Databases Intermediate Interview Questions

What is a subquery in SQL?

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What are the advantages and disadvantages of denormalization?

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What is the purpose of the GROUP BY clause in SQL?

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What is the difference between a clustered and a non-clustered index?

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What is the difference between UNION and UNION ALL in SQL?

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What is a join in SQL?

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What is the difference between INNER JOIN and OUTER JOIN?

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Explain the different types of relationships in database design.

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What is a stored procedure?

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What is a trigger in a database?

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Explain the concept of transaction in databases.

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Databases Interview Questions For Experienced

What is database sharding?

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Explain the ACID properties in detail.

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What is a deadlock in a database?

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What is query optimization in databases?

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What are materialized views?

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Explain the different types of locking in databases.

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What is the CAP theorem?

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What is the difference between OLTP and OLAP?

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Explain the concept of database transactions in detail.

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What are database indexes and how do they work?

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What is database partitioning?

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Explain the concept of database replication.

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What is data warehousing and why is it important?

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