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📅  最后修改于: 2022-03-11 15:05:08.394000             🧑  作者: Mango
123SELECT columns FROM table_A LEFT JOIN table_B ON join_conditionsXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX