Database replication is the frequent electronic copying of data from a database in one computer or server to a database in another -- so that all users share the same level of information.
مندرجہ ذیل میں سے کون تمام سرگرمیوں کا مکمل ریکارڈ رکھتا ہے جس نے ایک مخصوص مدت کے دوران ڈیٹا بیس کے مواد کو متاثر کیا۔
A. none
B. Transaction log
C. report writer
D. query language
Explanation
A transaction log is a history of actions executed by a "Database Management System" (DBMS) to guarantee "ACID" properties over crashes or hardware failures.
Physically, a log is a file listing changes to the database, stored in a stable storage format.
The relational database environment has all of the following components except separate files.
A relational database is a set of formally described tables from which data can be accessed or reassembled in many different ways without having to reorganize the database tables.
In the Internet Protocol stack (also known as the OSI model), the fifth layer is the Session Layer.
When data is sent from device A to device B, the Session Layer at device B is responsible for managing and controlling the connections between the two devices,
ensuring that the data exchange occurs correctly and efficiently.
Data transmission is the process of sending digital or analog data over a communication medium to one or more computing, network, communication or electronic devices.
