IBM
C2090-610 · Question #30
C2090-610 Question #30: Real Exam Question with Answer & Explanation
Sign in or unlock C2090-610 to reveal the answer and full explanation for question #30. The question stem and answer options stay visible for context.
Question
Which two statements are true about foreign key constraints? (Choose two.)
Options
- AThe foreign key constraint columns must be supported by an index.
- BThe foreign key constraint columns must be defined as NOT NULL.
- CThe number and data types of foreign key constraint columns must match the parent key.
- DThe columns of one foreign key constraint cannot be used in another foreign key constraint.
- ETo define a foreign key constraint there must be an associated primary key or unique key in the
Unlock C2090-610 to see the answer
You've previewed enough free C2090-610 questions. Unlock C2090-610 for full answers, explanations, the timed quiz mode, progress tracking, and the master PDF. Question stem and options stay visible so you can still see what's on the exam.