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SQL interview question for 10+ year experience

Here are some SQL interview questions that could be suitable for a candidate with 10+ years of experience:

  1. What are the different types of indexes in SQL, and how are they used?

  2. How do you optimize a query in SQL, and what tools and techniques do you use to identify performance issues?

  3. What are the different types of join in SQL, and how do you decide which one to use for a particular query?

  4. How do you ensure data consistency and integrity in a large-scale database, and what techniques do you use to handle concurrency and locking?

  5. What are some common database design patterns, and how do you choose the best one for a given scenario?

  6. How do you implement security and access control in SQL, and what are some best practices for securing sensitive data?

  7. How do you handle large-scale data migrations and schema changes in SQL, and what tools and techniques do you use to minimize downtime and data loss?

  8. What are some common data warehousing and business intelligence tools and techniques, and how do you integrate them with SQL databases?

  9. How do you design and implement backup and recovery strategies for SQL databases, and what tools and techniques do you use to monitor and troubleshoot issues?

  10. How do you stay current with new developments in the SQL and database field, and what resources do you rely on for ongoing learning and professional development?

 

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