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Second Normal Form (2NF) removes partial dependency, which occurs when a non-prime attribute is functionally dependent on part of a candidate key. A table is in 2NF if it is in 1NF and all non-key attributes are fully dependent on the primary key. Why Other Options are Wrong: a) 1NF deals with atomicity, ensuring that each column contains only indivisible values. c) 3NF removes transitive dependency, not partial dependency. d) BCNF is a stronger version of 3NF but does not specifically address partial dependency. e) 4NF deals with multi-valued dependencies.
A boat covers a distance of 900 metres upstream in 36 seconds and the same distance downstream in 24 seconds. Find the speed of the boat in still water.
A car travels 225 km in 5 hours at its normal speed. If it covers 90 km at this regular speed and then travels another 135 km at a speed that is 20% fas...
A train running at a speed of 72 km/h crosses another train running in the opposite direction at 54 km/h in 12 seconds. The length of the first train is...
Tanuj can make a toy in 6 hrs. 50 minutes and 26 seconds. How much time will he take to make 5 such toys?
A boy goes to school with a speed of 45 km/h and comes back with a speed of 30 km/h. find his average speed?
A is cycling at an average speed of 48 km/hr such that he can reach a certain point at 12 noon. If he cycles at 80 km/hr, then he will reach the destina...
Vicky and Vikram start running simultaneously around a rectangular track of length 1500m from the same point at speeds of 50 km/hr and 40 km/hr. When wi...
I walk a certain distance and ride back taking a total time of 37 minutes. I could walk both ways in 55 minutes. How long would it take me to ride both ...
