
Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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Consider the following pseudo-code. Assume the language has one global scope, and one scope for
each braced code block (including function and branch):
int x = 1;
void f1(int x) {
if (x > 4)
}
else {
}
f1 (x 1);
f1 (6);
int x = 5;
f2 ();
void f2() { print x; }
1. Draw the symbol tables in separation for all 4 scopes in this program. Assume each table
contains two columns: name and type.
2. If the language uses static scoping, what's the expected output from the print statement?
Justify your answer by showing the tree of the symbol tables at the print statement.
3. If the language uses dynamic scoping, what's the expected output from the print statement?
Justify your answer by showing the tree of the symbol tables at the print statement.
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