Abstract

The Transaction control is important in single-user and multiplayer DBMs, where transactions may be concurrent. In the latter case, they speak of a continuator of transactions. Under sequential parallel transactions prepare a plan for their execution, in which the total result of transaction processing is equal to the result of their successive executions. By performing a combination of transactions, conflicts can occur (locks), which is the resolution of the DBMS operation. If such cases are detected, a "rollback" is usually performed by undoing the changes made by one or more transactions. In this paper a single user sequential transaction control model was proposed to manage the distributed database in bank computers. The reliability of data storage in the database is ensured in the presence of DBMS hardware failures and failures in the database to maintain, as well as errors in the software. Changes in the database In order to effectively implement the function of creating a record, it is necessary to ensure the reliability of storage and maintenance in the working state of the journal. Sometimes there are multiple copies of the magazine on the computer.