Oracle
1Z0-071 · Question #409
1Z0-071 Question #409: Real Exam Question with Answer & Explanation
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Question
Which two are true about using constraints? (Choose two.)
Options
- AA table can have only one PRIMARY KEY but may have multiple FOREIGN KEY constraints.
- BA table can have multiple PRIMARY KEY and multiple FOREIGN KEY constraints.
- CPRIMARY KEY and FOREIGN KEY constraints can be specified at the column and at the table
- DNOT NULL can be specified at the column and at the table level.
- EA FOREIGN KEY column in a child table and the referenced PRIMARY KEY column in the parent
- FA table can have only one PRIMARY KEY and one FOREIGN KEY constraint.
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