- 授权协议: MIT
- 开发语言: JavaScript
- 操作系统: 跨平台
- 软件首页: http://knexjs.org
软件介绍
knex.js 是一个查询构建器,用于 PostgreSQL, MySQL 和 SQLite3。它设计灵活,轻便和有趣。
特性:
the ability to run in the Browser
例子:
var knex = require('knex')({ dialect: 'sqlite3', connection: { filename: './data.db' } }); // Create a table knex.schema.createTable('users', function(table) { table.increments('id'); table.string('user_name'); }) // ...and another .createTable('accounts', function(table) { table.increments('id'); table.string('account_name'); table.integer('user_id').unsigned().references('users.id'); }) // Then query the table... .then(function() { return knex.insert({user_name: 'Tim'}).into('users'); }) // ...and using the insert id, insert into the other table. .then(function(rows) { return knex.table('accounts').insert({account_name: 'knex', user_id: rows[0]}); }) // Query both of the rows. .then(function() { return knex('users') .join('accounts', 'users.id', 'accounts.user_id') .select('users.user_name as user', 'accounts.account_name as account'); }) // .map over the results .map(function(row) { console.log(row); }) // Finally, add a .catch handler for the promise chain .catch(function(e) { console.error(e); });
Graph Algorithms
Shimon Even / Cambridge University Press / 2011-9-19 / USD 32.99
Shimon Even's Graph Algorithms, published in 1979, was a seminal introductory book on algorithms read by everyone engaged in the field. This thoroughly revised second edition, with a foreword by Richa......一起来看看 《Graph Algorithms》 这本书的介绍吧!