Discussion :: Database Systems - Section 1 (Q.No.27)
|Nishant said: (Jan 16, 2014)|
|What is transaction log?
And why dml is not required?
|Seetha said: (Feb 5, 2016)|
|DML is a part of query language so a separate option does not make any sense. Query language is important in order to use the database.
In the field of databases in computer science, a transaction log (also transaction journal, database log, binary log or audit trail) is a history of actions executed by a database management system to guarantee ACID properties over crashes or hardware failures.
|Azad said: (Feb 11, 2017)|
|The Question asked is about files, not services.
That is why (c) is the correct option.
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