Database System Concepts
Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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Department Employee • Code Name Manager • ID Name Salary 44 Engineering 2538 2538 Lisa Ellison 45000 82 Sales 3829 5384 Sam Snead 30500 12 Marketing 6381 6381 Maria Rodriguez 92300 99 Technical Support NULL In the Department table, which foreign key value violates referential integrity? 2538 3829 ○ NULL
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Transcribed Image Text:Department Employee • Code Name Manager • ID Name Salary 44 Engineering 2538 2538 Lisa Ellison 45000 82 Sales 3829 5384 Sam Snead 30500 12 Marketing 6381 6381 Maria Rodriguez 92300 99 Technical Support NULL In the Department table, which foreign key value violates referential integrity? 2538 3829 ○ NULL
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Step 1: Explain what is Referential integrity
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Step 2: Identify which foreign key violates referential integrity
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