CBSE Class 12 Information Practices HOTs Oracle SQL PL

CBSE Class 12 Information Practices HOTs Questions Database for chapter Oracle SQL PL. Based on CBSE and NCERT guidelines. The students should practice these HOTs Questions to gain perfection which will help him to get more marks in CBSE examination. Based on CBSE and NCERT guidelines. Based on the same pattern as released by CBSE every year. CBSE releases HOTs Questions every year. These papers are released prior to the CBSE board examinations so that students can do practice. database of 1 marks, 2 marks, 3 marks and 5 marks questions

Oracle SQL Revision

166 Re-write the following using a join query:

SELECT ename FROM emp WHERE deptno =

(SELECT deptno FROM emp WHERE ename = 'JONES');2

167 Re-write the following using NOT EXISTS clause:

SELECT dept.dname FROM dept

WHERE dept.deptno NOT IN


SELECT deptno

FROM emp



168 What will be the output of the following query on EMP table:


FROM emp

WHERE (sal, mgr) =

(SELECT sal, mgr FROM emp


WHERE sal > (SELECT MIN(sal) FROM emp)));2

169 What will be the output of the following query:


WHERE empno IN (SELECT empno FROM emp


WHERE sal < (SELECT MAX(sal) FROM emp)));2

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