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Understanding Indexes

Introduction
B-trees
Summary
7. Summary

Instruction

That was a quick introduction into how databases create indexes internally. Some databases use structures other than B- and B+ trees, but they are outside the scope of this course.

In the next parts, we'll focus on the more practical side of indexes: you'll learn to actually use them in SQL and boost your query performance. See you there!

Exercise

Click Next exercise to finish this part.