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Computer Science - Database Systems - Discussion

Discussion Forum : Database Systems - Section 4 (Q.No. 5)
Database Systems
5.
Data integrity control
is used to set upper and lower limits on numeric data
requires the use of passwords to prohibit unauthorized access to the file
has the data dictionary keep the date and time of last access last back-up, and most recent modification for all files
All of the above
None of the above
Answer: Option
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