On the basis of above given table structures, retrieve the distinct employee ID (EMPID) of all employees of university who are working on project No.20, 30 and 40.

SELECT DISTINCT EMPIDFROM PROJECTWORKWHERE PROJNO=20, 30, 40;

SELECT EMPIDFROM PROJECTWORKWHERE PROJNO=(20, 30, 40);

SELECT EMPIDFROM PROJECTWOREKWHERE PROJNO IN (20, 30, 40);

SELECT DISTINCT EMPIDFROM PROJECTWORKWHERE PROJNO IN (20, 30, 40);

On the basis of above given table structures, retrieve the distinct em

1.	On the basis of above given table structures, retrieve the distinct employee ID (EMPID) of all employees of university who are working on project No.20, 30 and 40.
A.	SELECT EMPIDFROM PROJECTWORKWHERE PROJNO=(20, 30, 40);
B.	SELECT EMPIDFROM PROJECTWOREKWHERE PROJNO IN (20, 30, 40);
C.	SELECT DISTINCT EMPIDFROM PROJECTWORKWHERE PROJNO IN (20, 30, 40);
D.	SELECT DISTINCT EMPIDFROM PROJECTWORKWHERE PROJNO=20, 30, 40;
Answer» D. SELECT DISTINCT EMPIDFROM PROJECTWORKWHERE PROJNO=20, 30, 40;

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On the basis of above given table structures, retrieve the distinct employee ID (EMPID) of all employees of university who are working on project No.20, 30 and 40.

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