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I need help with this assignment please. I just cannot grasp these concepts

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Use the database shown in Figure P3.17 to answer Problems 17-23.
FIGURE P3.17 The Ch03_TransCo Database Tables
17. For each table, identify the primary key and the foreign key(s). If a table does not have
a foreign key, write
None
in the space provided.
TABLE
PRIMARY KEY
FOREIGN KEY(S)
TRUCK
BASE
TYPE
18. Do the tables exhibit entity integrity? Answer yes or no and then explain your answer.
TABLE
ENTITY INTEGRITY
EXPLANATION
TRUCK
BASE
TYPE
2 pages
SCIENCE
HEALTH SCIENCE
NURSING
NURS 6410

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