EBK DATABASE SYSTEM CONCEPTS
7th Edition
ISBN: 9781260049268
Author: SILBERSCHATZ
Publisher: MCG COURSE
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Expert Solution & Answer
Chapter 13, Problem 3PE
Explanation of Solution
The relation section with tree tuples:
| course_id | sec_id | semester | year | building | room_number | time_slot_id |
| BIO-301 | 1 | ... |
Explanation of Solution
The relation takes with five students for each section:
| ID | course_id | sec_id | semester | year | grade |
| 00128 | CS-101 | 1 | Fall | 2009 | A |
| 00128 | CS-347 | 1 | Fall | 2009 | A- |
| 12345 | CS-347 | 1 | Fall | 2009 | A |
| 12345 | CS-101 | 1 | Fall | 2009 | C |
| 17968 | BIO-301 | 1 | Summer | 2010 | null |
| 23856 | CS-347 | 1 | Fall | 2009 | A |
| 45678 | CS-101 | 1 | Fall | 2009 | F |
| 54321 | CS-101 | 1 | Fall | 2009 | A- |
Explanation of Solution
The multi table clustering for the given two instances:
| BIO-301 | 1 | Summer | 2010 | Painter | 514 | A |
| 17968 | BIO-301 | 1 | Summer | 2010 | null | |
| 59762 | BIO-301 | 1 | Summer | 2010 | null | |
| 78546 | BIO-301 | 1 | Summer | 2010 | null | |
| 89729 | BIO-301 | 1 | Summer | 2010 | null | |
| 98988 | BIO-301 | 1 | Summer | 2010 | null | |
| CS-101 | 1 | Fall | 2009 | Packard | 101 | H |
| 00128 | CS-101 | 1 | Fall | 2009 | A | |
| 12345 | CS-101 | 1 | Fall | 2009 | C | |
| 45678 | CS-101 | 1 | Fall | 2009 | F | |
| 54321 | CS-101 | 1 | Fall | 2009 | A- | |
| 76543 | CS-101 | 1 | Fall | 2009 | ...
Expert Solution & Answer
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Just need some assistance with number 3 please, in C#
How do we find the possible final values of variable x in the following program.
Int x=0; sem s1=1, s2 =0;
CO P(s2); P(s1); x=x*2; V(s1);
// P(s1); x=x*x; V(s1);
// P(s1); x=x+3; V(s2); V(s1);
Oc
Lab 07: Java Graphics
(Bonus lab)
In this lab, we'll be practicing what we learned about GUIs, and Mouse events. You will need to
implement the following:
➤ A GUI with a drawing panel. We can click in this panel, and you will capture those clicks as a
Point (see java.awt.Point) in a PointCollection class (you need to build this).
о The points need to be represented by circles.
Below the drawing panel, you will need 5 buttons:
о
An input button to register your mouse to the drawing panel.
○
о
о
A show button to paint the points in your collection on the drawing panel.
A button to shift all the points to the left by 50 pixels.
The x position of the points is not allowed to go below zero.
Another button to shift all the points to the right 50 pixels.
The x position of the points cannot go further than the
You can implement this GUI in any way you choose. I suggest using the BorderLayout for a panel
containing the buttons, and a GridLayout to hold the drawing panel and button panels.…
Chapter 13 Solutions
EBK DATABASE SYSTEM CONCEPTS
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