Learn Database Design with MySQL - Chapter 1 - What is a database

Learn Database Design with MySQL - Chapter 1 - What is a database

• 1.
  DATABASE DESIGN USING MYSQL Whatis A Database?
• 2.
  WHAT IS ADATABASE? A database is an ordered collection of data The word “Database” can be quite vague. People tend to clump a combination of 3 things when referring to a database • The Data • The Database Management System • Database Application
• 3.
  DATABASE MANAGEMENT SYSTEMS (DBMS) A“DBMS” is Software that is designed to model data and provide interaction with a user • Data is normally stored in one or more files • Data is usually stored in tables • Tables contain rows and columns much like a spreadsheet • Data can be cross referenced among tables. This functionality is used in “Relational Databases” such as MySQL
• 4.
  POPULAR DBMS’S • MySQL •PostgreSQL • SQLite • Microsoft SQL Server • Oracle • SAP • FoxPro • dBASE • MariaDB
• 5.
  SIMPLE EXAMPLE id first_namelast_name email 1 Brad Traversy brad@something.com 2 John Doe john@something.com 3 Jane Doe Jane@something.com Here is an example of a very simple table inside of a database Database Name: MyStore Table Name: Users Columns/Fields: id, first_name, last_name, email Rows/Records: 3 Users
• 6.
  INTERACTING WITH ADATABASE Some common functions when working with a database… • Define • Create • Select • Query • Update • Delete
• 7.
  WHAT IS SQL? SQL(Structured Query Language) is a special purpose programming language that allows developers to interact with the data in a database • Based on relational algebra and tuple relational calculus • Data definition and data manipulation language • Perform CRUD (Create, Read, Update, Delete)
• 8.
  COMMON DATABASE MODELS •Relational Database (MySQL) • Object Oriented Database • Object Relational Database • Distributed Database • NoSQL Database (MongoDB) • Multimedia Database • Flat Database • Network Database • Hierarchical Database
• 9.
  THAT’S IT!