Data Saturdays Sofia is a training event for professionals who use the Microsoft data platform. About this Event Data Saturday Sofia is an in-person training event for professionals who use the Microsoft data platform. Community speakers will offer cloud, analytics, database administration, business intelligence, AI, and more sessions. Following the announcement of the ending of PASS, this site has been established by the community as a means to continue events under the Data Saturdays name. We believe that by sharing these resources and enabling community input, we can provide the same level of events that SQLSaturdays provide.