我需要帮助创建一个 SQL 查询,该查询将从数据库返回鸡尾酒,因为我已经提供了进入该鸡尾酒的所有成分因此,例如,我希望“Gin and Tonic”行仅在我为 Gin(id 为 1)和 Tonic(id 为 2)提供正确的 id 时返回。我只提供“补品”,我不应该回到这一行我正在使用 SQLAlchemy 和 Flask,但我仍然无法理解查询将如何工作这是我的表结构的样子+-------------------+| Tables_in_my_database |+-------------------+| cocktails || ing_in_cocktails || ingredients |+-------------------+这是我的鸡尾酒桌+----+----------------+-------+---------+| id | name | glass | finish |+----+----------------+-------+---------+| 1 | white russisan | rocks | stirred || 2 | gin and tonic | rocks | stirred |+----+----------------+-------+---------+这是我的配料表+----+---------+----------+| id | name | ing_type |+----+---------+----------+| 1 | vodka | fruit || 2 | kahluha | fruit || 3 | gin | fruit || 4 | tonic | fruit |+----+---------+----------+这是我的关系表+----+-------------+--------+| id | cocktail_id | ing_id |+----+-------------+--------+| 1 | 1 | 1 || 2 | 1 | 2 || 3 | 2 | 3 || 4 | 2 | 4 |+----+-------------+--------+以下是对应的 SQLAlchemy 模型class Cocktail(db.Model): __tablename__ = 'cocktails' id = db.Column(db.Integer, primary_key=True) name = db.Column(db.String(80), nullable=False) glass = db.Column(db.String(20), nullable=False) finish = db.Column(db.String(20), nullable=True) ingredients = db.relationship( 'Ingredient', secondary=ing_in_cocktails, backref=db.backref('cocktails', lazy='dynamic') )class Ingredient(db.Model): __tablename__ = 'ingredients' id = db.Column(db.Integer, primary_key=True) name = db.Column(db.String(80), nullable=False) ing_type = db.Column(db.String(20), nullable=False)ing_in_cocktails = db.Table( 'ing_in_cocktails', db.Column('id', db.Integer, primary_key=True), db.Column('cocktail_id', db.Integer, db.ForeignKey('cocktails.id')), db.Column('ing_id', db.Integer, db.ForeignKey('ingredients.id')))
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