Data compression meaning

How does database compression work?
To determine the compression ratio, divide the size of outputFile value by groupPages value.
For example, if the size of outputFile value is 40 000 bytes and the size of the group of pages is 200 000 bytes, then the compression ratio is 40000/200000 or 0.20 (5:1 compression)..
How is data compression measured?
In the compression process the energy used to compress the vapour turns into heat and increases its temperature and enthalpy, so that at the end of compression the vapour state is in the superheated part of the diagram and outside the saturation curve..
What are examples of data compression?
Data compression is a technique used to minimize the volume of digital data, maximizing storage efficiency and improving data transmission speed.
This is achieved through various algorithms designed to identify and eliminate redundant or insignificant data elements without sacrificing the core information they embody..

How does database compression work?