Sponsored
Sponsored
Watch expert explanations and walkthroughs
Learn With Chirag
Start Practicing
Everyday Data Science
Tech Timeout
![MLV Prasad - LeetCode SQL [ EASY ] | 1141 | "User Activity for the Past 30 Days I" |](/_next/image?url=https%3A%2F%2Fi.ytimg.com%2Fvi%2Fode3uHg_5qw%2Fhq720.jpg%3Fsqp%3D-oaymwEXCNAFEJQDSFryq4qpAwkIARUAAIhCGAE%3D%26rs%3DAOn4CLCrdkekS3QMGlf-URJPvTXcEjvV2Q&w=256&q=75)
Data Science University - MLV Prasad
Frederik Müller
![MLV Prasad - LeetCode SQL [ EASY ] | 1142 | "User Activity for the Past 30 Days II" |](/_next/image?url=https%3A%2F%2Fi.ytimg.com%2Fvi%2FqBQTftKpAFc%2Fhq720.jpg%3Fsqp%3D-oaymwEXCNAFEJQDSFryq4qpAwkIARUAAIhCGAE%3D%26rs%3DAOn4CLAOkBt8zG5dnZ7pswkn1PEDs0VGWA&w=256&q=75)
Data Science University - MLV Prasad
Tech Timeout
StatLearn Tech