Senior Performance Engineer Interview Questions

4,702 senior performance engineer interview questions shared by candidates

Build one SQL query to create a cohort of Signup to First Order and show the result. The objective of this cohort is to see, out of the users that signed up in Week N, how many did their first order in Week N+1, N+2, N+3... As an input, you have 2 tables : - one with user_id, signup_timestamp - and a second one with user_id, order_timestamp Make it scalable.
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Marketing Performance Analyst

Interviewed at Glovo

3.4
Dec 11, 2018

Build one SQL query to create a cohort of Signup to First Order and show the result. The objective of this cohort is to see, out of the users that signed up in Week N, how many did their first order in Week N+1, N+2, N+3... As an input, you have 2 tables : - one with user_id, signup_timestamp - and a second one with user_id, order_timestamp Make it scalable.

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