SQL Tips and Tricks - Slowly Changing Dimensions In Data warehousing with iPhone 11 Example | SCD 1/2/3

In real world dimensions do not remain constant. with the change in Dimension value we need to keep track of all the data in history. SCD type 1/2/3 are different way on maintaining your data warehouse tables . In this video we will understand how the tables looks like in SCD 1/2/3 and when to use what. Video content: 00:00 : Background 01:45 : SCD 1 04:30 : SCD 2 09:33 : SCD 3 Most Asked Join Based Interview Question: https://youtu.be/xR87ctOgpAE Top 10 SQL interview Questions: https://youtu.be/Iv9qBz-cyVA Interview Question based on FULL OUTER JOIN: https://youtu.be/KQfWd6V3IB8 Playlist to master SQL : https://youtube.com/playlist?list=PLBTZqjSKn0IeKBQDjLmzisazhqQy4iGkb Rank, Dense_Rank and Row_Number: https://youtu.be/xMWEVFC4FOk #sql #dataengineer #scd #datawarehousing