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<title>Ocp test </title>
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<b>QUESTION 017
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<p>Which SQL statement defines the FOREIGN KEY constraint on the DEPTNO column
of the EMP table? </p><table border="1" bordercolor="gray" width="665">
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<p><b><input type="radio" name="AN" value="A"> A.</b></p>
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<p> CREATE TABLE EMP <br>
(empno NUMBER(4), <br>
ename VARCNAR2(35), <br>
deptno NUMBER(7,2) NOT NULL <br>
CONSTRAINT emp_deptno_fk FOREIGN KEY deptno <br>
REFERENCES dept
deptno);
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<p><b><input type="radio" name="AN" value="B"> B.</b></p>
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<p> CREATE TABLE EMP <br>
(empno NUMBER(4), <br>
ename VARCNAR2(35), <br>
deptno NUMBER(7,2) <br>
CONSTRAINT emp_deptno_fk REFERENCES dept(deptno));
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<p><b><input type="radio" name="AN" value="C"> C.</b></p>
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<p> CREATE TABLE EMP <br>
(empno NUMBER(4) <br>
ename VARCHAR2(35), <br>
deptno NUMBER(7,2) NOT NULL, <br>
CONSTRAINT emp_deptno_fk REFERENCES dept (deptno) <br>
FOREIGN KEY (deptno));
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<p><b><input type="radio" name="AN" value="D"> D.</b></p>
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<p> CREATE TABLE EMP (empno NUMBER(4), <br>
ename VARCNAR2(35), <br>
deptno NUMBER(7,2) FOREIGN KEY <br>
CONSTRAINT emp_deptno_fk REFERENCES dept(deptno));</p>
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