Describe how versions can be used to increase concurrency.

What will be an ideal response?


Multiversion timestamp ordering described . In effect, each write operation
creates a new version of a data item while retaining the old version. When a transaction
attempts to read a data item, the DBMS selects one of the versions that ensures serializability.

Computer Science & Information Technology

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How do you see the shares that another computer is offering using the NET VIEW command?

What will be an ideal response?

Computer Science & Information Technology

Access uses the 1900 date system to store dates. Thus, when you enter a date into a Date/Time field, Access identifies it as a date and compares it to the calendar to make sure it is an actual date

Indicate whether the statement is true or false

Computer Science & Information Technology

When the power is switched off, everything in ____ is lost.

A. main memory B. secondary storage C. hard disk D. floppy disk

Computer Science & Information Technology

Passwords do not prevent users from editing a worksheet or the entire workbook

Indicate whether the statement is true or false

Computer Science & Information Technology