What is transaction processing?

Transaction processing is a computer group of logical operations. In order to work transactions, all operations must succeed or fail as a group. A simple example of processing transactions is paying an account for services from your bank account. The account payment process from your account is to deduct your account to $ 100 (USD) and attribute your provider account to your usefulness. If the $ 100 Debit was successful, but the credit did not go to the tool provider's account, the transaction would fail. Your $ 100 would be lost somewhere in the transaction. The transaction processing system enables to group all operations into a single transaction to avoid consistency problems.E known as an acid test. The transactions are known as atomic , which means that the transaction will occur or not. If one account is written off, another account must be credited.

transaction processing system must always be consistent with its own rules. If errors occur in the transaction on both sides, the transaction fails. isolation transactions mean that other processes never see information during the transaction. They can see information before or after a transaction but not during a transaction. For example, if two people book the last theater seat at the same time, they can both see the seat in front of the reservation, but only one person succeeds in reserving this seat.

transaction must be resistant . This means that if this final place in the theater has been reserved and you received the notification chair is yours, it is permanently recorded. No matter what problems occur in the system, backups are introduced in the transaction system to ensure that the record remains permanent.

transaction processing systems are available from the age of 70 and almost all businesses use them. The arrival of the Internet has seen the boom in transaction systems and software. Over the yearsDY for the purchase and implementation of the necessary software has fallen so much that most businesses can use it profitable. Banking from home, booking on network, shopping and work from home are now readily available and less time consuming, thanks to transactions.