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EMP CODE Table name: EMPLOYEE EMP_LNAME JOB_CODE Table name: BENEFIT EMP CODE PLAN_CODE 14 Rudell 2 15 2 15 McDade 1 15 3 16 Ruellardo 1 16 1 17 Smith 3 17 1 20 Smith 2 17 3 17 4 20 3 Database name: Ch03_BeneCo Table name: JOB JOB CODE JOB DESCRIPTION 1 Clerical 2 Technical 3 Managerial Table name: PLAN PLAN_CODE PLAN_DESCRIPTION 1 Term life 2 Stock purchase 3 Long-term disability 4 Dental

EMP CODE Table name: EMPLOYEE EMP_LNAME JOB_CODE Table name: BENEFIT EMP CODE PLAN_CODE 14 Rudell 2 15 2 15 McDade 1 15 3 16 Ruellardo 1 16 1 17 Smith 3 17 1 20 Smith 2 17 3 17 4 20 3 Database name: Ch03_BeneCo Table name: JOB JOB CODE JOB DESCRIPTION 1 Clerical 2 Technical 3 Managerial Table name: PLAN PLAN_CODE PLAN_DESCRIPTION 1 Term life 2 Stock purchase 3 Long-term disability 4 Dental

Database System Concepts
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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  • An EMPLOYEE has only one JOB_CODE, but a JOB_CODE can be held by many EMPLOYEEs.

  • An EMPLOYEE can participate in many PLANs, and any PLAN can be assigned to many EMPLOYEEs.

Note also that the M:N relationship has been broken down into two 1:M relationships for which the BENEFIT table serves as the composite or bridge entity.

Question: For each table in the database, identify the primary key and the foreign key(s). If a table does not have a foreign key, write None.

EMP CODE Table name: EMPLOYEE EMP_LNAME JOB_CODE Table name: BENEFIT EMP CODE PLAN_CODE 14 Rudell 2 15 2 15 McDade 1 15 3 16 Ruellardo 1 16 1 17 Smith 3 17 1 20 Smith 2 17 3 17 4 20 3 Database name: Ch03_BeneCo Table name: JOB JOB CODE JOB DESCRIPTION 1 Clerical 2 Technical 3 Managerial Table name: PLAN PLAN_CODE PLAN_DESCRIPTION 1 Term life 2 Stock purchase 3 Long-term disability 4 Dental
Transcribed Image Text:EMP CODE Table name: EMPLOYEE EMP_LNAME JOB_CODE Table name: BENEFIT EMP CODE PLAN_CODE 14 Rudell 2 15 2 15 McDade 1 15 3 16 Ruellardo 1 16 1 17 Smith 3 17 1 20 Smith 2 17 3 17 4 20 3 Database name: Ch03_BeneCo Table name: JOB JOB CODE JOB DESCRIPTION 1 Clerical 2 Technical 3 Managerial Table name: PLAN PLAN_CODE PLAN_DESCRIPTION 1 Term life 2 Stock purchase 3 Long-term disability 4 Dental
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