Interested to Buy Any Domain ? << Click Here >> for more details...
we store and display scores of users in different games. In
MySQL, records are stored as tuples (user-id, game-id, score).
Now we need to support ranks of users, i.e., each user
should be informed of his current rank in the community. The
challenge is to come up with the best way to store the data
in MySQL so that the requirements are efficiently met.
- 1 Answers
- 3428 Views
- IndiaTimes, I also Faced
- E-Mail Answers
Answer / amitverma
There's NO need to store the data in any "new" way because
the existing schema/tuple (user-id, game-id, score) is
enough for fetching and displaying the ranks of individual
users. Only need is to write few good SQL queries which
will do the job. We can display ranks as follows -
Select user-id, score from game_table where game-id='10'
order by score.
Note - The above SQL query will display the rankwise
listing of users (as per their scores) for a specific game,
which has id 10 (say cricket).
| Is This Answer Correct ? | 1 Yes | 1 No |
How does php sessions work?
What is the Diff. Between echo() and Print() in PHP?
29 Answers CoreNet, Priya, QueenZend, Sky InfoTech, Syntel,
What is varchar mysql?
How do you call a constructor for a parent class?
How to Retrieve the Session ID of the Current Session?
What is basename php?
What is variable and data type?
What are the current versions of apache, PHP, and mysql?
How can we find the number of rows in a result set using PHP?
How to open a file for reading?
Which function(s) in PHP computes the difference of arrays?
Why do we use inheritance in php?
PHP 
