Milliseid tööriistu kasutasite SQL-päringute õppimiseks ja optimeerimiseks andmebaasis?

To learn and optimize SQL queries, I used the following tools:

• EXPLAIN and EXPLAIN ANALYZE — help understand the execution plan of the query and identify bottlenecks.
• pgAdmin — a graphical interface for working with PostgreSQL, including query analysis.
• Profilers and logging — I enabled slow query logging to find issues.
• Index testing — I added and checked the impact of indexes on speed.

Example of using EXPLAIN ANALYZE:

EXPLAIN ANALYZE SELECT * FROM users WHERE email = 'example@example.com';

This will show how long the query takes and what operations are performed.