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.
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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?
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
When the power is switched off, everything in ____ is lost.
A. main memory B. secondary storage C. hard disk D. floppy disk
Passwords do not prevent users from editing a worksheet or the entire workbook
Indicate whether the statement is true or false