原文:Sequelize-nodejs-12-Migrations

Migrations迁移 Just like you use Git SVN to manage changes in your source code, you can use migrations to keep track of changes to the database. With migrations you can transfer your existing database i ...

2018-12-05 16:24 0 2506 推荐指数:

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Sequelize 学习笔记(11)- Migrations 迁移

一、作用 类似 git 管理源代码 一样,维护你的 DB。 二、安装 npm install --save sequelize-cli 三、使用 1、构建项目时 node_modules/.bin/sequelize init 会创建以下四个文件夹: config ...

Tue Nov 20 02:22:00 CST 2018 0 2471
Sequelize-nodejs-5-Querying

Querying查询 Attributes To select only some attributes, you can use the attributes option. Most ofte ...

Thu Dec 06 00:26:00 CST 2018 0 2656
Sequelize-nodejs-8-Transactions

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 ...

Thu Dec 06 00:25:00 CST 2018 0 969
egg-sequelize --- nodejs

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 ...

Tue Dec 11 00:51:00 CST 2018 0 1232
Sequelize-nodejs-3-model definition

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 ...

Thu Dec 06 00:26:00 CST 2018 0 912
关于 nodejs sequelize 事务批量拆分

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 ...

Wed Jun 13 03:23:00 CST 2018 0 1503
Sequelize-nodejs-10-Hooks

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 ...

Thu Dec 06 00:25:00 CST 2018 0 671
Nodejs ORM框架Sequelize快速入门

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SequelizeSequelize是一款 ...

Sat Jan 05 04:07:00 CST 2019 0 2085
 
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