A data item whose value may change during processing is a(n)
a) defined value
b) constant
c) input
d) variable
d) variable
Computer Science & Information Technology
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What will be an ideal response?
Computer Science & Information Technology
Assume that, in addition to the operations read(x) and write(x), a database has the operation copy(x,y), which (atomically) copies the value stored in record x into record y. Design a conflict table for these operations for use in an immediate-update pessimistic concurrency control.
What will be an ideal response?
Computer Science & Information Technology