siven relations PRO New York and pz: in Fig. 2.2 in our textbook, "New York be two simple predic edicates. Assu that aracter strings have an order among them, based on the alphabetical order. Perform a horizontal fragmentation of PROJ with respect to these predicates to obtain PROJ1 and PROJ2. Using the fragmentation of PROJ, perform further derived horizontal fragmentation for ASG. Place each row of ASG, (1) to (10), under the appropriate fragment. (1) (2) (3) (4) (5) (6) (7) (8) (9) (10) ASG ENO PNO RESP -~~**** E1 P1 E2 P1 E2 P2 E3 P3 E3 P4 E4 P2 E5 P2 P4 E6 Manager Analyst Analyst Consultant Manager Manager E7 P3 Engineer P3 Manager E8 DUR 12 24 6 10 48 Engineer Programmer 18 24 48 36 40

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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Given relations PROJ and ASG in Fig. 2.2 in our textbook, let p1: LOC ≤ "New York" and p2: LOC > "New York" be two simple predicates. Assume that character strings have an order among them, based on the alphabetical order. Perform a horizontal fragmentation of PROJ with respect to these predicates to obtain PROJ1 and PROJ2. Using the fragmentation of PROJ, perform further derived horizontal fragmentation for ASG. Place each row of ASG, (1) to (10), under the appropriate fragment.

**ASG Table:**

| ENO | PNO | RESP       | DUR |
|-----|-----|------------|-----|
| E1  | P1  | Manager    | 12  |
| E2  | P1  | Analyst    | 24  |
| E2  | P2  | Analyst    | 6   |
| E3  | P3  | Consultant | 10  |
| E3  | P4  | Engineer   | 48  |
| E4  | P2  | Programmer | 18  |
| E5  | P2  | Programmer | 24  |
| E6  | P4  | Manager    | 48  |
| E7  | P3  | Engineer   | 36  |
| E8  | P3  | Manager    | 40  |

**ASG1 and ASG2:**

- ASG1: No Answers Chosen
- ASG2: No Answers Chosen

**Possible Answers:**
(6), (9), (3), (1), (4), (10), (5), (7), (8), (2)

The task involves sorting each row of the ASG table into ASG1 or ASG2 based on the fragmentation of PROJ. The solutions have not been provided in this display.
Transcribed Image Text:Given relations PROJ and ASG in Fig. 2.2 in our textbook, let p1: LOC ≤ "New York" and p2: LOC > "New York" be two simple predicates. Assume that character strings have an order among them, based on the alphabetical order. Perform a horizontal fragmentation of PROJ with respect to these predicates to obtain PROJ1 and PROJ2. Using the fragmentation of PROJ, perform further derived horizontal fragmentation for ASG. Place each row of ASG, (1) to (10), under the appropriate fragment. **ASG Table:** | ENO | PNO | RESP | DUR | |-----|-----|------------|-----| | E1 | P1 | Manager | 12 | | E2 | P1 | Analyst | 24 | | E2 | P2 | Analyst | 6 | | E3 | P3 | Consultant | 10 | | E3 | P4 | Engineer | 48 | | E4 | P2 | Programmer | 18 | | E5 | P2 | Programmer | 24 | | E6 | P4 | Manager | 48 | | E7 | P3 | Engineer | 36 | | E8 | P3 | Manager | 40 | **ASG1 and ASG2:** - ASG1: No Answers Chosen - ASG2: No Answers Chosen **Possible Answers:** (6), (9), (3), (1), (4), (10), (5), (7), (8), (2) The task involves sorting each row of the ASG table into ASG1 or ASG2 based on the fragmentation of PROJ. The solutions have not been provided in this display.
The image contains a series of tables categorizing employees, their assignments, projects, and pay details. Below is a detailed transcription of each table:

**EMP (Employee Details):**

| ENO | ENAME     | TITLE       |
|-----|-----------|-------------|
| E1  | J. Doe    | Elect. Eng. |
| E2  | M. Smith  | Syst. Anal. |
| E3  | A. Lee    | Mech. Eng.  |
| E4  | J. Miller | Programmer  |
| E5  | B. Casey  | Syst. Anal. |
| E6  | L. Chu    | Elect. Eng. |
| E7  | R. Davis  | Mech. Eng.  |
| E8  | J. Jones  | Syst. Anal. |

**ASG (Assignments):**

| ENO | PNO | RESP       | DUR |
|-----|-----|------------|-----|
| E1  | P1  | Manager    | 12  |
| E2  | P1  | Analyst    | 24  |
| E2  | P2  | Analyst    | 6   |
| E3  | P3  | Consultant | 10  |
| E3  | P4  | Engineer   | 48  |
| E4  | P2  | Programmer | 18  |
| E5  | P2  | Manager    | 24  |
| E6  | P4  | Manager    | 48  |
| E7  | P3  | Engineer   | 36  |
| E8  | P3  | Manager    | 40  |

**PROJ (Projects):**

| PNO | PNAME                | BUDGET | LOC      |
|-----|----------------------|--------|----------|
| P1  | Instrumentation      | 150000 | Montreal |
| P2  | Database Develop.    | 135000 | New York |
| P3  | CAD/CAM              | 250000 | New York |
| P4  | Maintenance          | 310000 | Paris    |

**PAY (Pay Scale):**

| TITLE      | SAL  |
|------------|------|
| Elect. Eng.| 40000|
| Syst. Anal.| 34000|
| Me
Transcribed Image Text:The image contains a series of tables categorizing employees, their assignments, projects, and pay details. Below is a detailed transcription of each table: **EMP (Employee Details):** | ENO | ENAME | TITLE | |-----|-----------|-------------| | E1 | J. Doe | Elect. Eng. | | E2 | M. Smith | Syst. Anal. | | E3 | A. Lee | Mech. Eng. | | E4 | J. Miller | Programmer | | E5 | B. Casey | Syst. Anal. | | E6 | L. Chu | Elect. Eng. | | E7 | R. Davis | Mech. Eng. | | E8 | J. Jones | Syst. Anal. | **ASG (Assignments):** | ENO | PNO | RESP | DUR | |-----|-----|------------|-----| | E1 | P1 | Manager | 12 | | E2 | P1 | Analyst | 24 | | E2 | P2 | Analyst | 6 | | E3 | P3 | Consultant | 10 | | E3 | P4 | Engineer | 48 | | E4 | P2 | Programmer | 18 | | E5 | P2 | Manager | 24 | | E6 | P4 | Manager | 48 | | E7 | P3 | Engineer | 36 | | E8 | P3 | Manager | 40 | **PROJ (Projects):** | PNO | PNAME | BUDGET | LOC | |-----|----------------------|--------|----------| | P1 | Instrumentation | 150000 | Montreal | | P2 | Database Develop. | 135000 | New York | | P3 | CAD/CAM | 250000 | New York | | P4 | Maintenance | 310000 | Paris | **PAY (Pay Scale):** | TITLE | SAL | |------------|------| | Elect. Eng.| 40000| | Syst. Anal.| 34000| | Me
Expert Solution
Step 1

Let's do the predicts

p1 = LOC <= "New York"

p2 = LOC > "New York"

 

 

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