How hackers hack database C++

One best ways in programming to hack or deal with database is use of pointers , by using pointer we can access every cell of memory in the ram , we can access every comportment of arrays and switch in the RAM , a picture handling arrays using pointers is given below , if you all want to get easiest tutorial leave comment down or if you want to understand that pic

output of this program will be 12345 ,thanks for reading must be thumb up and comment