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Logical vs Physical Transaction

두 개의 트랜잭셔널 어노테이션이 있는 로직이 있을 때!(각기 다른 서비스)

• According to the ACID properties, it should be one transaction.

• Spring calls this a physical transaction. It is just actual JDBC connections.

• But internally there are two logical transactions. The first one in EmployeeService and another one in AccountService

• If we change the propagation type in createAccountDocument( ) we can change it to have two physical connections.