A computer database is a structured collection of records or data that is stored in a computer system so that a computer program or person using a query language can consult it to answer queries. The records retrieved in answer to queries are information that can be used to make decisions. The computer program used to manage and query a database is known as a database management system (DBMS). The properties and design of database systems are included in the study of information science.
Before we get into dedicated database management systems, let's start with the basics - let's look at a simple text file example
Imagine we have a text file look like this:
We could use this information to do things such as send an email to everyone on our list. We could do this because, due to the way we designed the list, we know that each row contains a different individual, and the information on that row is related to that individual. Also, the items in each row are separated by commas. Therefore, we know that the email address next to "Homer" is his email address. We could also call each row a record. Therefore, we currently have 4 records in our database

Another option would be to store it in a spreadsheet using spreadsheet software (for example, Microsoft Excel). That way, we could do some extra things with our list (such as format it, or sort by first name/surname etc).
A spreadsheet program like Excel makes these tasks relatively easy to do. Also, programs like Excel organize the data into rows and columns, making your data easier to comprehend. Something like this

A better option would be to store the data in a database table using specialized database software, such as Microsoft Access. Something like this:


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