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1. Do My SQL Query
I'm in need for some SQL queries.
And possibly some database optimizations.
and a quick explanation of the tables:
results: identifies the results for a specific tid (tournament)
matches: gives the result for each tid of the matches disputed. the result (1) indicates if the winner was team1+deckone or (2), team2,decktwo.
The queries i will need are:
a) Select distinct from results the deck and number of times it appears
Deck : total ------------ red : 5 Yellow : 2 Blue: 6
b) A select from the table matches that will give the win rates from a specified deck.
meaning, counting all the ocorrences of deck, and times it won, against what. Ignore when deckone = decktwo
Deck : wins : loses : total ____________________________ Yellow : 5 : 2 : 7 Blue : 2 : 2 : 4
c) Same as previous querie, except it relates to other decks.
global win = total wins / total plays.
win vs x = wins vs deck x / plays vs deck x
example expected (don't need the % calculated, i can do that, just need to wins and totals).
Deck : global win : win vs Yell : win vs blue : win vs Pink ------------------------------------------------------------- Yell : 50% : - : 20% : 50% : 80% Blue : 40% : 30% : - : 20% : 45% Pink : 90% : 50% : 100% : 70% : -
d) A mix of a) + c) Meaning to include a new collum with: (number of deck)/total.
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