Repeat Exercise 21.14 adding a check in T 1 so that Y does not exceed 90. In
Question:
In exercise 21.14
Change transaction T 2 in Figure 21.2b to read:
read_item(X);
X:= X+M;
if X > 90 then exit
else write_item(X);
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Related Book For
Fundamentals of Database Systems
ISBN: 978-0136086208
6th edition
Authors: Ramez Elmasri, Shamkant Navathe
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