Understanding Databases

Explore database details with this course on database purposes, functions and more.

3 videos  //  18 minutes of training

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Course description

Databases are used every day by millions of people, and not many of them know what a database really is. In this course, you’ll explore the purpose and functions of databases, the role of relational databases, essential tools and components, database permissions and more.

Course syllabus

Introduction to DatabasesDuration: 5:40

In this episode, Scott describes the purpose and functions of databases, information gathering and querying tools used every day by millions of people. The episode provides a motivation for why we use databases (rather than flat-file documents or spreadsheets) once the amount and variety of information desired gets big.

Database DetailsDuration: 6:07

In this episode, Scott explains how relational databases rely on interlinked tables to make data entry and queries fast and efficient. In the process, you’ll examine essential components of databases, tools you’ll use a lot in every aspect of information technology.

Ask Me Anything about DatabasesDuration: 6:09

In this episode, Scott discusses additional questions about persistence, IOPS, non-relational databases and database permissions.

Meet the author

Scott Jernigan

LinkedIn

Scott Jernigan is editor-in-chief for Total Seminars, a provider of PC and network repair seminars, books, videos and courseware for thousands of organizations. Scott has been involved in the computer, network and IT industry since 1996 as a technician, instructor, editor, author and speaker.

Scott has written, edited, and contributed to dozens of books on computer literacy, hardware, operating systems, networking and certification. His latest book is Computer Literacy: Your Ticket to IC3 Certification. Scott co-authored the best-selling CompTIA A+ Certification All-in-One Exam Guide, the Mike Meyers A+ Guide to Managing and Troubleshooting PCs and the CompTIA Strata IT Fundamentals All-in-One Exam Guide. Scott has taught computer classes all over the U.S., including stints at the United Nations and the FBI Academy in Quantico, Virginia. 

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