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在农作物病虫数据库中灵活应用SQL,可以实现方便、快捷、准确的查询,以达到充分灵活运用病虫害历史数据的目的,可大大提高查询效率和数据的利用效率。
The flexible application of SQL in the crop pest database enables convenient, fast and accurate querying in order to achieve full and flexible use of historical data of pests and diseases, which can greatly improve query efficiency and data utilization efficiency.