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Use the database shown in Figure P3.10 to work. Note that the database is composed of four tables that reflect these relationships: • 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 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.

Use the database shown in Figure P3.10 to work. Note that the database is composed of four tables that reflect these relationships: • 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 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.

Database Systems: Design, Implementation, & Management
Database Systems: Design, Implementation, & Management
12th Edition
ISBN:9781305627482
Author:Carlos Coronel, Steven Morris
Publisher:Carlos Coronel, Steven Morris
Chapter8: Advanced Sql
Section: Chapter Questions
Problem 18RQ
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Use the database shown in Figure P3.10 to work. Note that the database is composed of four tables that reflect these relationships:

• 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

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.

 

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