Databases are the technical basis of the most data repositories in the world today! Downtime in transaction of processing systems is crucial to all organizations with a high possibility of operations can shutdown. Database management system (DBMS) must recover errors without data loss, and preferably in a short time. Therefore the State database must be restored it in, was shortly before a problem stopped all database processing.
Database backups often occur; however, always provisional data missing you, to update the database between backup jobs intervals!As shown in the illustration below, a completed transaction on the active database and a transaction journal has copied installation.If a database backup is performed the transaction list is marked with a date stamp to point out if recovery is required.
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