object relational database tutorial

I learned a Chinese Database textbook six years ago, but at that time my mind was not enlightened, Or I lacked a perceptual knowledge about the content of the textbook, so I had no effect after learning it. Recently, to create a system with CMS, we

After the concept of database was put forward, several data models appeared successively. There are three kinds of basic data models: Hierarchical model system, network model system, and relational model system. The relationship model proposed in

Eloquent Object relational mapping in PHP's Laravel framework is used, laraveleloquent 0. What is eloquentEloquent is the Laravel ' ORM ', which is ' Object Relational Mapping ', which is a relational mapping of objects. The advent of ORM is to

PHP uses PDO extension to connect PostgreSQL Object relational database $pdo = Null;if (Version_compare(Php_version, ' 5.3.6 ', ' ' SET NAMES \ ' utf8\ '));} else{$pdo = new \pdo (' pgsql:host=127.0.0.1;port=5432;dbname=postgredb1 ', ' postgres ',

This article mainly introduces the use of eloquent object relationship mapping in PHP's Laravel framework, focusing on the relationship between eloquent data models, and the need for friends to refer to the following 0. What is eloquentEloquent is

Command line run Python script In this section, we'll write a few simple database management scripts. Before that, let's review how to execute a Python script from the command line. If Linux or OS X's operating system requires permission to

command-line mode to run a Python script In this section, we will write some simple database management scripts. Let's review how to execute the Python script from the command line. If you have Linux or OS X operating systems, you need to have

Chapter 4 MySQL database. Learning points: 1. web database Overview 2. mySQL operation 3. mySQL common functions 4. SQL statement details 5. phpMyadmin 1. web database Overview now, we are familiar with the basic knowledge of PHP Learning points: 1.

First, why did INDEXEDDB replace the web SQL Database?With the children's education has never been a "win at the starting line" this way, in the front-end area, is not where to first come out of which in the future to lead the coquettish.HTML5

Learning Essentials: 1.Web Database Overview Operation of 2.MySQL 3.MySQL Common functions 4.SQL Statement Explanation 5.phpMyadmin A Web Database Overview Now that we are familiar with the basics of PHP, this is what we want to leave the PHP