Do you have experience performing query analysis using SQL tools?

Yes, I have experience analyzing SQL queries using various tools such as EXPLAIN PLAN, database profilers, and query visualizers. This helps understand how the DBMS executes the query, identify bottlenecks like full table scans or inefficient indexes.

For example: using the EXPLAIN command in PostgreSQL or MySQL, you can get the execution plan of a query and optimize it by adding indexes or rewriting the query.

EXPLAIN SELECT * FROM orders WHERE customer_id = 123;

By analyzing the output, you can determine whether an index on customer_id is used or if a full table scan occurs.