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Relational Databases

Programming

关系型数据库简介

什么是数据库

Looking at Tables Intro to Relational Databases

Looking at Tables Intro to Relational Databases

Data Types and Meaning Intro to Relational Databases

Data Types and Meaning Intro to Relational Databases

Data Meanings Intro to Relational Databases

Data Meanings Intro to Relational Databases

动物园

Anatomy of a Table

Answering Questions from a Table Intro to Relational Databases

Answering Questions from a Table Intro to Relational Databases

聚合

Queries and Results Intro to Relational Databases

Queries and Results Intro to Relational Databases

如何查询

最喜欢的动物

相关表格

唯一性和键

Primary Key Intro to Relational Databases

Primary Key Intro to Relational Databases

合并表格

Database Concepts Intro to Relational Databases

Database Concepts Intro to Relational Databases

总结

SQL is for Elephants

Talk to the Zoo Database Intro to Relational Databases

Talk to the Zoo Database Intro to Relational Databases

SQL 中的数据类型

Select Where Intro to Relational Databases

Select Where Intro to Relational Databases

Comparison Operators Intro to Relational Databases

Comparison Operators Intro to Relational Databases

SQL 的一个缺点

The Experiment Page Intro to Relational Databases

Select Clauses Intro to Relational Databases

Select Clauses Intro to Relational Databases

数据库的优势

Count all the Species Intro to Relational Databases

Count all the Species Intro to Relational Databases

a

a

Find the Fish Eaters Intro to Relational Databases

Find the Fish Eaters Intro to Relational Databases

no

a

More Join Practice Intro to Relational Databases

More Join Practice Intro to Relational Databases

总结

Welcome to your Database

什么是 DB API

使用 DB API 编写代码

Trying out DB API Intro to Relational Databases

Trying out DB API Intro to Relational Databases

Inserts in DB API Intro to Relational Databases

Inserts in DB API Intro to Relational Databases

运行 forum

Hello PostgreSQL

Give that App a Backend Intro to Relational Databases

Give that App a Backend Intro to Relational Databases

帖子破坏者 Bobby Tables

Curing Bobby Tables Intro to Relational Databases

Curing Bobby Tables Intro to Relational Databases

垃圾表格

Stopping the Spam Intro to Relational Databases

Stopping the Spam Intro to Relational Databases

Updating Away the Spam Intro to Relational Databases

Updating Away the Spam Intro to Relational Databases

Deleting the Cheese Intro to Relational Databases

Deleting the Cheese Intro to Relational Databases

结论

Intro to Creating Tables

规范化设计（第一部分）

规范化设计（第二部分）

Whats Normalized Intro to Relational Databases

Whats Normalized Intro to Relational Databases

创建表格和类型

Create Drop Database Table Intro to Relational Databases