Understanding MySQL Indexes Through Everyday Queries
Learn when indexes help searches and how to inspect queries with EXPLAIN.

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Learn when indexes help searches and how to inspect queries with EXPLAIN.
Understand commit and rollback through a stock transfer between locations.
Reduce data duplication by understanding the three most commonly used normal forms.
Learn the difference between Read Committed and Repeatable Read and their impact on concurrently read data.
Find out why database connections should be reused, not opened and closed each request.
Stay curious. There is always something new to learn.
Writer and founder of Diary Coding — sharing notes, tutorials, and experiences about programming for anyone who wants to keep learning.