How can I optimize my SQL queries for better performance?
There are several techniques to optimize SQL queries, such as indexing, avoiding SELECT *, and using JOINs efficiently.
What is indexing and how does it help?
Indexing creates a data structure that improves the speed of data retrieval operations on a database table.
Can you give me an example of a poorly optimized query?
Sure! A query like 'SELECT * FROM users WHERE age > 30' can be slow if there’s no index on the 'age' column.
What tools can I use to analyze my query performance?
You can use tools like EXPLAIN in SQL, SQL Server Profiler, or third-party tools like SolarWinds Database Performance Analyzer.
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