A database is a collection of tables which store information.

A Database Management System is an application/environment for creating, modifying and administering any number of individual databases.

For example:

MSSQL databases are typically managed using MS SQL Server Management Studio

MySQL databases are commonly managed using PHPMyAdmin

First you have to learn about databases yourself. Once you have done that you also need to learn how to teach. Then you are ready to start teaching people about databases. You start with the basics, like what a database is and what fields and records are. You teach people about data types. You show them how to use an actual database application and create a simple database. You show them how to do other things like sorting, filtering, creating queries, creating reports, creating forms and many other things. You teach them about more complex things, such as normalisation, relational databases, distributive databases, linking databases to other databases and other applications, administering databases, integrating databases with programs.. There are all of these and many other things you can teach. You may specialise in one area of databases.

Databases.

There are a variety of types of databases. These include online databases, graph databases, public domain databases, and time series databases.

No. It is a spreadsheet application. You can do simple databases in it, but it is not designed to create complex databases like relational databases. To do that you would use an actual database application.

No. It is a spreadsheet application. You can do simple databases in it, but it is not designed to create complex databases like relational databases. To do that you would use an actual database application.

No. It is a spreadsheet application. You can do simple databases in it, but it is not designed to create complex databases like relational databases. To do that you would use an actual database application.

No. It is a spreadsheet application. You can do simple databases in it, but it is not designed to create complex databases like relational databases. To do that you would use an actual database application.

No. It is a spreadsheet application. You can do simple databases in it, but it is not designed to create complex databases like relational databases. To do that you would use an actual database application.

No. It is a spreadsheet application. You can do simple databases in it, but it is not designed to create complex databases like relational databases. To do that you would use an actual database application.

No. It is a spreadsheet application. You can do simple databases in it, but it is not designed to create complex databases like relational databases. To do that you would use an actual database application.

No. It is a spreadsheet application. You can do simple databases in it, but it is not designed to create complex databases like relational databases. To do that you would use an actual database application.

No. It is a spreadsheet application. You can do simple databases in it, but it is not designed to create complex databases like relational databases. To do that you would use an actual database application.

No. It is a spreadsheet application. You can do simple databases in it, but it is not designed to create complex databases like relational databases. To do that you would use an actual database application.

No. It is a spreadsheet application. You can do simple databases in it, but it is not designed to create complex databases like relational databases. To do that you would use an actual database application.