Optimize Your SQL Queries | Postgres Edition

Code with Irtiza · Beginner ·📊 Data Analytics & Business Intelligence ·3y ago

About this lesson

Easy way you can analyze and optimize your SQL queries to get the best performance out of them. Reference: https://thoughtbot.com/blog/reading-an-explain-analyze-query-plan 🥹 If you found this helpful, follow me online here: ✍️ Blog https://irtizahafiz.medium.com 👨‍💻 Website https://irtizahafiz.com 📲 Instagram https://www.instagram.com/irtiza.hafiz/ 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

Original Description

Easy way you can analyze and optimize your SQL queries to get the best performance out of them. Reference: https://thoughtbot.com/blog/reading-an-explain-analyze-query-plan 🥹 If you found this helpful, follow me online here: ✍️ Blog https://irtizahafiz.medium.com 👨‍💻 Website https://irtizahafiz.com 📲 Instagram https://www.instagram.com/irtiza.hafiz/ 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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Chapters (9)

Agenda
1:15 Difference between EXPLAIN & EXPLAIN ANALYZE
2:35 How count of returned rows affect performance
4:15 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
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