How to use txt file as a database?

Question

Hello everyone! I want to know how to write and read text files and how to use it as a database. For example, the code must retrive text and extract only required data.

Answer 1

for example:

in your text file:

Dog
Cat
Cow
Fox

if you need to get the cat, you just have to get the Line2. Ignoring all the remaining Lines.

Answer 2

You can't get specific data on a text file like just by using a keyword or something.

All you can do is separate your data into separate lines and get the specific line you need.

Answer 3

Can you give an example?