Question: What is a database index, and why is it important for query performance? Explain the concept of multithreading and provide an example of its

What is a database index, and why is it important for query

What is a database index, and why is it important for query performance? Explain the concept of multithreading and provide an example of its use in a real-world scenario. Define the term "inheritance" in object-oriented programming and provide an example. Describe the role of a compiler in software development and how it differs from an interpreter.

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