Oracle
1Z0-514 · Question #66
Which two statements are true regarding the usage of integrity constraints? (Choose two.)
The correct answer is B. Primary key constrain) can consist of multiple columns from the same table. C. Foreign key column can reference e a primary key column in the same of or different tables. See the full explanation below for the reasoning.
Question
Which two statements are true regarding the usage of integrity constraints? (Choose two.)
Options
- Al EM h column can have only one constraint.
- BPrimary key constrain) can consist of multiple columns from the same table.
- CForeign key column can reference e a primary key column in the same of or different tables.
- DMore than one row in a table cannot contain null value In a column with unique constraint.
- EA chock constraint can enforce conditions that refer to the values in other columns in the table.
How the community answered
(18 responses)- A6% (1)
- B78% (14)
- D6% (1)
- E11% (2)
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