Transactions

The PPM server is transaction-controlled on the database. Database queries are performed within a chain of command and finally applied (committed) in the database schema. This procedure is called transaction. Initially, transactions are executed temporarily in the runtime environment of the database system. Transactions that are not yet completed can be canceled (rolled back).

Transaction-controlled access to the database requires a minimum amount of system resources of the database instance.

However, the database systems supported by PPM behave differently in terms of transaction handling. The PPM application server optimally exploits the different transaction handling of the database systems supported.

Examples