Transaction Servers Also called query server systems or SQL serversystems Clients send requests to the server Transactions are executed at the server Results are shipped back to the client. Requests are specified in SQL,and communicated to the server through a remote procedure call(RPC)mechanism. Transactional RPC allows many RPC calls to form a transaction. Applications typically use ODBC/JDBC APIs to communicate with transaction servers Database System Concepts-7th Edition 20.5 ©Silberscha乜，Korth and SudarshanDatabase System Concepts - 7 20.5 ©Silberschatz, Korth and Sudarshan th Edition Transaction Servers ▪ Also called query server systems or SQL server systems • Clients send requests to the server • Transactions are executed at the server • Results are shipped back to the client. ▪ Requests are specified in SQL, and communicated to the server through a remote procedure call (RPC) mechanism. ▪ Transactional RPC allows many RPC calls to form a transaction. ▪ Applications typically use ODBC/JDBC APIs to communicate with transaction servers