When would you use Minus operation?
What will be an ideal response?
To find rows that are in one table, but are not in the other table.
Computer Science & Information Technology
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The bottom layer of the OSI model is
A) Data link B) Physical C) Network D) Transport
Computer Science & Information Technology
The problem with using the popen function in servers is
A. popen can run arbitrary shell commands B. the server has to call the pclose function to prevent zombies
Computer Science & Information Technology