Database Indexing Explained (with PostgreSQL)

This is a practical video on Database Indexing where I explain what is an index, why do we need it and how it can improve the performance of the queries. Also how (if used incorrectly) it can slow down your queries


intro 0:00
What is an index 0:30
Describe Table 2:15
SELECT [ID] WHERE ID 4:00
SELECT [NAME] WHERE ID 6:30
SELECT [ID] WHERE [NAME] (No index) 9:20
SELECT [ID] WHERE NAME LIKE 11:12
CREATE INDEX ON [NAME] 12:00
SELECT [ID] WHERE NAME (Indexed) 12:50
SELECT [1D] WHERE NAME LIKE (Indexed) 14:30
Summary 16:00

Support my work on PayPal
https://bit.ly/33ENps4

Become a Member on YouTube
https://www.youtube.com/channel/UC_ML5xP23TOWKUcc-oAE_Eg/join

🧑‍🏫 Courses I Teach
https://husseinnasser.com/courses

🏭 Backend Engineering Videos in Order
https://backend.husseinnasser.com



💾 Database Engineering Videos
https://www.youtube.com/playlist?list=PLQnljOFTspQXjD0HOzN7P2tgzu7scWpl2

🏰 Load Balancing and Proxies Videos
https://www.youtube.com/playlist?list=PLQnljOFTspQVMeBmWI2AhxULWEeo7AaMC

🏛️ Software Archtiecture Videos
https://www.youtube.com/playlist?list=PLQnljOFTspQXNP6mQchJVP3S-3oKGEuw9

📩 Messaging Systems
https://www.youtube.com/playlist?list=PLQnljOFTspQVcumYRWE2w9kVxxIXy_AMo

Become a Member
https://www.youtube.com/channel/UC_ML5xP23TOWKUcc-oAE_Eg/join

Support me on PayPal
https://bit.ly/33ENps4

Stay Awesome,
Hussein