How are log files used for database reliability?
What will be an ideal response?
Log files record the database transaction activity. A database transaction is a logical unit of work reading or writing from a database. Database transactions are important for maintaining the integrity and consistency of the database. A database transaction is designed to roll back should the transaction fail. The rollback capability relies on writing the transaction to the log file prior to committing the transaction to the data file. The log of database transactions is also necessary when recovering a database from a backup-which is done by replaying the transaction activity from the log to ensure no loss of data.
You might also like to view...
A derived class has access to
a. the private functions and variables of its ancestor classes b. the public functions and variables of its ancestor classes c. only the functions and variables defined it its class d. none of the above
When you create a symbol for a document, you assign a name to it, and you specify certain properties based on the behavior of the symbol.
Answer the following statement true (T) or false (F)
What is one of the most common actions you will take in a table?
A) Adding or deleting borders B) Moving text C) Adding bullets and numbers D) Inserting a column or row
Most workbooks arrange data in ________
Fill in the blank(s) with the appropriate word(s).