Querying查询 Attributes To select only some attributes, you can use the attributes option. Most ofte ...
Transactions事务 Sequelize supports two ways of using transactions: Sequelize支持两种使用transactions的方法 One which will automatically commit or rollback the transaction based on the result of a promise chain ...
2018-12-05 16:25 0 969 推荐指数:
Querying查询 Attributes To select only some attributes, you can use the attributes option. Most ofte ...
项目 egg + sequelize + mysql2 项目结构 配置 安装模块 config/pulgin.js config/config.default.js 数据建模 ...
Model definition模型定义 To define mappings between a model and a table, use the define method.定义模型和表之间 ...
sequelize执行事务的时候因为数据量可能会比较大要拆成100条update一组来执行,弄了半天终于可以了,代码片段如下 这里脱裤子放屁了,实际上Promise.all()返回的还是Promise,既然是Promise就可以继续放到Promise.all()里最后判断最终 ...
Hooks钩子 Hooks (also known as lifecycle events), are functions which are called before and after calls in sequelize are executed. For example, if you ...
Migrations迁移 Just like you use Git / SVN to manage changes in your source code, you can use migrati ...
Nodejs ORM框架Sequelize快速入门 什么是ORM? 简单的讲就是对SQL查询语句的封装,让我们可以用OOP的方式操作数据库,优雅的生成安全、可维护的SQL代码。直观上,是一种Model和SQL的映射关系。 那么什么是Sequelize? Sequelize是一款 ...
Raw queries原始查询 就是使用了原始的查询语句,如UPDATE users SET y = 42 WHERE x = 12 As there are often use cases in ...