Postgres Interview Questions For Freshers

What is Postgres?

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What is a table in Postgres?

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How can you install and set up Postgres?

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What is the difference between Postgres and MySQL?

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How does Postgres handle transactions?

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What are some advantages of using Postgres?

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Postgres Intermediate Interview Questions

How can you retrieve data from multiple tables using JOIN in Postgres?

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What is a subquery in Postgres? Give an example.

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What is the purpose of the pg_dump command in Postgres?

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What is a foreign key constraint in Postgres? How does it ensure data integrity?

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What is the purpose of the EXPLAIN command in Postgres?

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Explain the concept of normalization in a relational database.

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What are stored procedures in Postgres? How are they created?

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How can you create an index in Postgres? Why would you do that?

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What is a primary key in Postgres? How is it defined?

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Explain the different data types supported by Postgres.

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Postgres Interview Questions For Experienced

Explain the purpose of EXCLUDE constraints in Postgres.

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What are table partitioning and inheritance in Postgres?

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How can you handle concurrency in Postgres?

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What is the purpose of the NOTIFY command in Postgres?

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What are prepared statements in Postgres? How do they improve performance?

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Explain the difference between a view and a materialized view.

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How can you perform full-text search in Postgres?

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What is the purpose of the pg_stat_statements module in Postgres?

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What are Postgres extensions? How can you install and use them?

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Explain the purpose of the VACUUM command in Postgres.

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What are materialized views in Postgres?

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How can you optimize query performance in Postgres?

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Explain the concept of transaction isolation levels in Postgres.

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