请教下 Flask-Sqlalchemy 查询最大值是怎么写？ Sqlalchemy 是 func.max FlaskSqlalchemy 没有看到相关的语法。
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4 replies • 2018-12-25 11:09:10 +08:00
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autotesting Dec 24, 2018
groupby 后才能用 func.max, func.min 这样
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Fiery123 OP @autotesting 有参考的例子吗，，现在我的方法是执行原始 sql 语句
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autotesting Dec 24, 2018
其实很多，https://stackoverflow.com/questions/45775724/sqlalchemy-group-by-and-return-max-date
你搜关键词 sqlachemy groupby func.max |
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Fiery123 OP @autotesting 我用这样的语法查出来为空
userbalance_model.query.filter_by(user_id = parse.user_id, asset = parse.coin).with_entities(func.max(userbalance_model.id)).all() |
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