a simple DB application that implements basic data security. It's a

trivially simple game called "Rock, Paper, Scissors" $($RPS$).$ It has many

variations; however, in its simplest form, valid input consists of the

characters $\text{'}$R$\text{'},\text{'}$P$\text{'},$ and $\text{'}$S$\text{'}.\text{'}$R$\text{'}$ beats $\text{'}$S$\text{'}$; $\text{'}$S$\text{'}$ beats $\text{'}$P$\text{'}$; and $\text{'}$P$\text{'}$ beats

$\text{'}$R$\text{'}.($This exercise is found in $*$many$*$ elementary programming textbooks.$)$

To implement this game securely$,$ we will use four tables... OK$,$ three related

tables and an errata log$.$ The three tables will represent "players", "games",

and "rounds".

A play