Question:What will happen if you query the emp table as shown below:
select empno, DISTINCT ename, Salary from emp; 

A EMPNO, unique value of ENAME and then SALARY are displayed 
B EMPNO, unique value ENAME and unique value of SALARY are displayed 
C DISTINCT is not a valid keyword in SQL 
D No values will be displayed because the statement will return an error 

+ Answer
D 

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Md. Habib Ullah

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