Querying查詢 Attributes To select only some attributes, you can use the attributes option. Most ofte ...
Transactions事務 Sequelize supports two ways of using transactions: Sequelize支持兩種使用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 推薦指數:
Querying查詢 Attributes To select only some attributes, you can use the attributes option. Most ofte ...
項目 egg + sequelize + mysql2 項目結構 配置 安裝模塊 config/pulgin.js config/config.default.js 數據建模 ...
Model definition模型定義 To define mappings between a model and a table, use the define method.定義模型和表之間 ...
sequelize執行事務的時候因為數據量可能會比較大要拆成100條update一組來執行,弄了半天終於可以了,代碼片段如下 這里脫褲子放屁了,實際上Promise.all()返回的還是Promise,既然是Promise就可以繼續放到Promise.all()里最后判斷最終 ...
Hooks鈎子 Hooks (also known as lifecycle events), are functions which are called before and after calls in sequelize are executed. For example, if you ...
Migrations遷移 Just like you use Git / SVN to manage changes in your source code, you can use migrati ...
Nodejs ORM框架Sequelize快速入門 什么是ORM? 簡單的講就是對SQL查詢語句的封裝,讓我們可以用OOP的方式操作數據庫,優雅的生成安全、可維護的SQL代碼。直觀上,是一種Model和SQL的映射關系。 那么什么是Sequelize? Sequelize是一款 ...
Raw queries原始查詢 就是使用了原始的查詢語句,如UPDATE users SET y = 42 WHERE x = 12 As there are often use cases in ...