Which statement is true regarding the effect of the command?

View the Exhibit and examine the structure of the EMP table.

You executed the following command to add a primary key to the EMP table:
ALTER TABLE emp
ADD CONSTRAINT emp_id_pk PRIMARY KEY (emp_id)
USING INDEX emp_id_idx;
Which statement is true regarding the effect of the command?

View the Exhibit and examine the structure of the EMP table.

You executed the following command to add a primary key to the EMP table:
ALTER TABLE emp
ADD CONSTRAINT emp_id_pk PRIMARY KEY (emp_id)
USING INDEX emp_id_idx;
Which statement is true regarding the effect of the command?

A.
The PRIMARY KEY is created along with a new index.

B.
The PRIMARY KEY is created and it would use an existing unique index.

C.
The PRIMARY KEY would be created in a disabled state because it is using an
existing index.

D.
The statement produces an error because the USING clause is permitted only in the
CREATE TABLE command.



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