Which of the update statement produces the following error in the employee table? ORA-02291: integrity constraint (SYS_C23) violated - parent key not found.
Answer options
A
UPDATE Employee SET Deptid=3 WHERE Empid = 101;
B
UPDATE Employee SET Deptid=3;
C
UPDATE Employee SET Empid = 101;
D
UPDATE Employee SET Deptid=3, Empid=101;
Correct answer: UPDATE Employee SET Deptid=3 WHERE Empid = 101;
Detailed Solution & Conceptual Analysis
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Key Engineering Takeaway
In Database Management, understanding the underlying mechanics of Database Management is critical for writing performant, bug-free production code and passing rigorous technical architecture reviews.