A) Create a read?only view using TAB1.
B) Alter TAB1 to add a check constraint.
C) Define a primary key or unique constraint on TAB1.
D) Define a dependent table where TAB1 is the parent.
Who Invented Elevator Safety Brake ?
A boat while travelling upstream covers a distance of 29 km at the speed of 6 km/h, whereas while travelling downstream it covers the same distance at a speed of 12 km/h. What is the speed of the boat in still water?
Which switching technology reduces the size of a broadcast domain?
A sum of Rs. 731 is divided among A,B and C, such that ‘A’ receives 255 more than ‘B’ and ‘B’ receives 25% less than ‘C’. What is ‘C’ s share in the amount?
Sexratio in India is measured as
Ethylene glycol is used as an antifreeze in a cold climate. Mass of ethylene glycol which should be added to 4 kg of water to prevent it from freezing at –6°C will be: (Kf for water = 1.86 Kg/mol and molar mass of ethylene glycol = 62 kg/mol)
The brain is covered by
Which letter has at least one line of symmetry?
If x = 2 + 223 + 213 then find the value of x3−6×2+6x ?
How many number of times will the digit ‘7′ be written when listing the integers from 1 to 1000?