Recruiter Call and then case study for fraud team, the case study had data related to recent user purchases and they wanted me to go through that and share insights

Informal, laid back with quick follow up time. Initial interview was fine but SQL interview was extremely challenging given no background of the data structure before hand and not able to run any actual queries. Questions them self in SQL were not difficult but the context of having no background or knowledge of the data made it hard on the spot to write pseudocode.