Optimize Your SQL Queries | Postgres Edition
Easy way you can analyze and optimize your SQL queries to get the best performance out of them.
Reference: https://thoughtbot.com/blog/reading-a...
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0:00 Agenda
01:15 Difference between EXPLAIN & EXPLAIN ANALYZE
02:35 How count of returned rows affect performance
04:15 How to monitor index usage
10:30 Aggregation queries using indexes
13:37 Information about JOIN algorithms
18:15 ORDER BY using Index forward and backward
20:56 How to read query plans
22:10 Outro
#database #mysql #postgres
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