20 PostgreSQL Inteview Questions and Answers For 2-3 Years Experienced 2025 | MindMajix – YouTube

Ace your PostgreSQL interview in 2025. This video covers frequently asked PostgreSQL interview questions and answers for 2-3 years of experienced candidates. We have covered key concepts, and practical examples to help you land your dream database job.

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🔘 How do I prepare for a PostgreSQL interview?
Focus on mastering core SQL concepts (queries, joins, indexes, transactions) and PostgreSQL-specific features (data types, functions, stored procedures), while also practicing common interview questions and preparing examples from your projects to showcase practical experience.

Timestamps:
0:01:21 From vacations booking table, write a query that returns columns representing the total number of booking in last 90 days
0:05:38 Provide a data analytics solution
0:09:17 Describe the different types of user accounts and access control mechanisms
0:10:12 Explain how you would migrate data from another database system to PostgreSQL
0:11:39 How can you stop a PostgreSQL server?
0:13:19 Why is it standard practice to explicity put foreign key constraints on related tables instead of creating a normal BIGNIT field
0:16:46 How to handle exceptions in PL/pgSQL
0:19:30 Explain the concept of JSON data types in PostgreSQL
0:21:32 What does write-ahead logging do
0:22:17 What is the role of vacuum in PostgreSQL
0:23:32 How do you use advisory locks in PostgreSQL
0:24:33 How do you use the pgbouncer connection pooler with PostgreSQL
0:26:07 What is difference between clustered index and non-clustered index
0:26:28 What are the three phenomena that must be prevented between concurrent transaction
0:27:42 What do you understand by inveerted file in PostgreSQL
0:28:20 What is purpose of the pg_stat_ssl view in PostgreSQL
0:29:03 What is hot standby in PostgreSQL and how does it work
0:29:48 How do we implement the table partitioning
0:31:19 How do we implement sharding

✅ About MindMajix’s PostgreSQL Training:
PostgreSQL training program comprises a combination of basic theory, discussions over complex DBA Administration scenarios, and three Real-Time use cases and also includes the topics from both PostgreSQL Associate and Professional Certifications Exams. After completing the training, learners will continue to be plugged into MindMajix through the included job-search assistance and Mock Interviews.

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