varinclude = [{ model: Customer, required:true, attributes: ['name'], }] Order.findAll({include:include, attributes:[[sequelize.fn('SUM', sequelize.col('price')),'sum']], group:'Customer.name', having:['COUNT(?)>?','name', 1], raw:true, rollup:true}).then(function(result){ ...
> select c.name, SUM(o.price) AS sum from customers AS c INNER JOIN orders AS o ON o.customerId =c.id GROUP BY c.name; Sequelize中进行连接查询时,首先需要建立模型间的关联关系: Order.belongsTo(Customer, {foreignKey: "customerId"}); 连接查询及分组: var include = [{ model: Customer,...
attributes: ['id','foo','bar','baz','qux','hats',//我们必须列出所有属性...[sequelize.fn('COUNT', sequelize.col('hats')),'n_hats']//添加聚合...] });//这个更短,并且更不易出错. 如果以后在模型中添加/删除属性,它仍然可以正常工作Model.findAll({ attributes: {include: [ [sequelize....
include:[{ model:Post, required:true, through:{attributes:[]} }] }).then(users={ console.log(users); }); 17联合查询union 联合查询(Union)允许我们将多个查询的结果合并为一个结果集。在Sequelize中,我们可以通过sequelize.query方法来执行原生SQL查询,从而实现联合查询。
我需要在中通过查询编写userProfileImages订单,我尝试了如下所示,但没有成功。User.findById(uID, { model: sequelize.models.userProfile includeorder: [[sequelize.models.use 浏览1提问于2017-09-03得票数 24 回答已采纳 3回答 如何使用Sequelize查询两列相等? 、 db.WorkbookQuestion.count({ QuestionId: db...
include: [{ model: ArticleModel, where: { userId: 2 } }] }) console.log(result.count) // 2 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 聚合查询 SQL 中的分组查询 mysql-聚合函数 SQL查询中,通GROUP BY语名实现分组查询。GROUP BY子句要和聚合函数配合使用才能完成分组查询,在SELECT查询的...
constUser=sequelize.define('User',{name:DataTypes.STRING,});constProject=sequelize.define('Project',{title:DataTypes.STRING,});User.hasMany(Project);Project.belongsTo(User);// 隐藏关联表的结果User.findAll({include:[{model:Project,attributes:{exclude:['createdAt','updatedAt']},// 排除...
include: [[Sequelize.fn("COUNT", Sequelize.col("related.id")), "related_total"]] }, include: [ { model: RelatedModel, attributes: [], } ], group: ['elements.id'] }); 由于包含字段和limit子句的组合,查询中断,不再工作,生成了一个无效查询,如: ...
nodeper1楼•4 个月前
'include': [ { 'model': Note // 这里可以对notes进行where } ] // 这里可以对tags进行where }); tags.forEach(function(tag) { // tag的notes可以通过tag.notes访问,关系模型可以通过tag.notes[0].tagging访问 console.log(tag); }); SQL: ...