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Hash Tables

Data Structures

A DBMS uses various data structures for many different parts of the system internals. Some examples include:

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Introduction

The DBMS is responsible for mapping its memory and moving data back-and-forth from the disk. more >>

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Storage

We will focus on a “disk-oriented” DBMS architecture that assumes that primary storage location of the database is on non-volatile disk. more >>

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Relational Languages

Edgar Codd published a major paper on relational models in the early 1970s. Originally, he only defined the mathematical notation(符号) for how a DBMS could execute queries on a relational model DBMS.

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Databases

A database is an organized collection of inter-related data that models some aspect of the real-world(e.g. modeling the students in a class or a digital music store).

So far, we have learned that CSS can govern how out layouts look, change fonts, text styles, colors, and make button styles, borders, shadows etc. But there’s actually so much more that CSS can do for out websites, such as idle animations, complex layouts, hover animations and responsive design.

Backend

Up until now, we’ve been messing with things that user directly sees - the frontend. Now we get to do some things that are super important but some users may never realize happens - the backend.

What’s ReactJS

React is a JavaScript library for building user interfaces. It’s modular, fast and readable.

JavaScript is a programming language that manipulates(操纵) the content of a web page.

High-level: HTML is bones/structure, while css is skin/styling.