Warehouse we need data for - operational data keeping - oltp (online transactional processing). we do not need a very long history of the data analytical decision making - olap...

Downsides of File Based Systems data redundancy - data repeated at different places data inconsistency - data update at one place might not be reflected at another place difficult data acce...

Java and Maven Installation Steps (Ubuntu) java 17 is needed for spring framework 6 / spring boot 3 download deb file from here run sudo apt install ./jdk-17_linux-x64_bin.deb download bi...