SQL Essentials · GROUP BY · SUM
Compare value by city — a network of clinics · training scenario
Compare the value by city in the context of a network of clinics, with a controllable result. You must produce the result, check it on the source data and explain what it allows you to decide in this network of clinics.
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Compare value by city — a network of clinics · training scenario is part of the complete programme: 38 lessons, 62 verifiable exercises and 8 published guided projects.
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