Question
What is the purpose of a lock in concurrency
control?Solution
To prevent multiple transactions from accessing the same data simultaneously
Sonali drove her son to his school towards South, which is 5 km away from her house. From school, she turned westward towards the market, which is 8 km ...
A man starts walking from point O reaches 5m east at point A. Then he turns to his right and walks 7m to reach point B. Again he turns to his left and ...
How far is he from his home now?
Ritesh walks 10m towards south. Then he turned left and walks 15m. Then he turns left and walks 20m, then he turns right and walks 5m. Finally he turns...
Point Q is in which direction with respect to his starting point ?
Pawan walks 14 km in south direction then turns towards his right and walks 7 km. Then takes two consecutive left turns of 2 km and 11 km respectively. ...
What is the shortest direction between I and L?Â
Suman walks 20 m north, then she turns left and walks 11m. Again she turns left and walks 32m. Finally she turns left and walks 11m. In which direction ...
What is the shortest distance between the point M and Q ?
L is in with direction with respect to C and what is the distance between C and L is?
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