2 votes 2 votes Databases sql + – shreshtha5 asked Jan 20, 2016 shreshtha5 361 views answer comment Share Follow See all 0 reply Please log in or register to add a comment.
1 votes 1 votes Option c is correct Shefali answered Jan 22, 2016 Shefali comment Share Follow See 1 comment See all 1 1 comment reply shreshtha5 commented Jan 26, 2016 reply Follow Share y q1 is wrong? 0 votes 0 votes Please log in or register to add a comment.
0 votes 0 votes Query 1 having error is just becozz in particular group how can cid have same grade which is 4 and and if it be present than it will return some output only if in that all cid's( same becoz group) and all grade =4. which is false hence ans is B. Sunit Kumar answered Sep 11, 2017 Sunit Kumar comment Share Follow See all 0 reply Please log in or register to add a comment.