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SQL Database - Taking one columns max value for another table column

I design my database and have 3 tables: 1) Authors table has ID, Name, Surname, and Paper_ID. Name and Surname combination is unique. 2) Topics table has TopicName, SOTAResult, and Paper_ID. TopicName, SOTAResult are unique. 3) Papers table has Title(unique), Result, Abstract. I design it like that...
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