Yii2 Working with Relational Data at ActiveDataProvider namespace common\models; use Yii; use yii\base\Model; use yii\data\ActiveDataProvider; use common\models\Recording; /** * RecordingSearch represents the model behind the search form about `commo…

原文:https://thierrysilbermann.wordpress.com/2015/09/17/deal-with-relational-data-using-libfm-with-blocks/ September 17, 2015ThierryS An answer for this question: [Example] Files for Block Structure There is a quick explanation in the README doc here: …

Coursera课程<Using Databases with Python> 密歇根大学 Week3 Data Models and Relational SQL 15.4 Designing a Data Model 主要介绍了数据模型的重要性,以及数据模型构建的一些思考过程. 15.5 Representing a Data Model in Tables 概念模型 主键(Primary key),指的是一个列或多列的组合,其值能唯一地标识表中的每一行,通过它可强制表的实体完整性.主键主…

概况  Yii2 一个高效安全的高性能PHP框架.mongodb 一个高性能分布式文档存储NOSQL数据库. 关于mongodb与mysql的优缺点,应该都了解过. mysql传统关系数据库,安全稳定.数据完整.资源文档完善.使用群体多.支持事物,V5.7后支持原生Json速度不逊mongodb.分布式主从集群刚刚的…… mongodb新兴NOSQL数据库,Bson文档存储,支持原生Javascript.性能优异百千万数据不在话下.内置GridFS Sharding海量存储.热数据持久化.分片部…

The data package is what loads and saves all of the data in your application and consists of 41 classes, but there are three that are more important than all the others - Model, Store and Ext.data.proxy.Proxy. These are used by almost every applicati…

原文地址:http://www.javacodegeeks.com/2015/07/mysql-vs-mongodb.html 1. Introduction It would be fair to say that as IT professionals we are living in the golden age of data management era. As our software systems become more complex and more distributed,…

zhuan :https://www.linkedin.com/pulse/100-open-source-big-data-architecture-papers-anil-madan Big Data technology has been extremely disruptive with open source playing a dominant role in shaping its evolution. While on one hand it has been disruptiv…

Introduction to data management 整个coures 2 是讲data management and storage 的,主要内容就是分布式文件系统,HDFS, Redis 等 What is data management? Introduction to data model 什么是data model? 三个component - Structure, Operations, Constrants 四个基本 data operation - selection(…

http://www.windowsazure.com/en-us/develop/net/fundamentals/cloud-storage/ Managing and analyzing data in the cloud is just as important as it is anywhere else. To let you do this, Windows Azure provides a range of technologies for working with relati…

转自: http://www.confluent.io/blog/stream-data-platform-1/ These days you hear a lot about "stream processing", "event data", and "real-time", often related to technologies like Kafka, Storm, Samza, or Spark's Streaming module.…