SQL: Incorrect by Construction

The design of SQL and relational database systems makes it easy to accidentally&#xA;introduce serious concurrency bugs. Below is a textbook money-transfer&#xA;procedure in TSQL ; Alice wants to send ten dollars to Bob, and to keep&#xA;Alice from overdrafting her account, we first check that she has enough money.&#xA;The code looks completely reasonable, but it has several critical bugs. Can…