Which Of The Following Queries Are Legal #631
Which of the following queries are legal?
This multiple choice question (MCQ) is related to the book/course
gs gs117 Database Management System.
It can also be found in
gs gs117 Database Programming Techniques - Rapid Application Development - Quiz No.1.
Which of the following queries are legal?
SELECT deptno, count(deptno) FROM emp GROUP BY ename;
SELECT deptno, count(deptno), job FROM emp GROUP BY deptno;
SELECT deptno, avg(sal) FROM emp;
SELECT deptno, avg(sal) FROM emp GROUP BY deptno;
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