Databases
StackOverflow2013
Postsdbo
PO
 

Note that there are some explanatory texts on larger screens.

plurals
  1. PO
    primarykey
    data
    text
    <p>You model looks good, however after looking at your use cases, I have a few questions/suggestions:</p> <h1>Query</h1> <p>I'll give these in Cypher as it's easiest to show in this format.</p> <p>Player</p> <p><em><strong>Show all the leagues played by a player.</em></strong></p> <pre><code>START player=node:Player('indexForPlayer') MATCH player-[PLAYED]-&gt;match-[PART_OF]-&gt;league RETURN league </code></pre> <p><em><strong>Show all the matches played by a player in each league.</em></strong></p> <pre><code>START player=node:Player('indexForPlayer') MATCH player-[PLAYED]-&gt;match-[PART_OF]-&gt;league RETURN match, collect(league) </code></pre> <p><em><strong>Player's current team and his previous teams.</em></strong></p> <pre><code>START player=node:Player('indexForPlayer') MATCH player-[BELONGED_TO]-&gt;team RETURN team </code></pre> <p><em><strong>How many times the player was a captain and all the leagues for which he was the captain.</em></strong> </p> <pre><code>How do you determine if they were a captain of a league? </code></pre> <p>Team <strong><em>How many times the team was a winner or runner.</em></strong> You might want to put this as a relationship such as <code>(match)-[WINNER]-&gt;(team)</code> this way to find out how many wins your team has, all you have to do is count the <code>WINNER</code> relationship. </p> <h1>Data Model</h1> <p>Add a property to the <code>Match</code> node for date played. I'm unfamiliar with sports, but Year may not be enough if they can swap teams within a year, however <code>Neo4j</code> doesn't really have a good method for dealing with time, other than a 'seconds since epoch ` type system. </p>
    singulars
    1. This table or related slice is empty.
    1. POGraph design (for neo4j) for sports tournaments
      singulars
      1. PTQuestion
    1. PTAnswer
    1. USNicholas
    1. USNicholas
    plurals
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. POGraph design (for neo4j) for sports tournaments
      singulars
      1. PTQuestion
    1. This table or related slice is empty.
    1. VO
      singulars
      1. PO
      1. This table or related slice is empty.
      1. VTUpMod
    2. VO
      singulars
      1. PO
      1. This table or related slice is empty.
      1. VTAcceptedByOriginator
    1. CO+1. Since it's teams that play matches, can you change the reference of player-[PLAYED]->match to include/be team-[PLAYED]->match? - That is a good observation. But the reason I have to made it this way is because, a Team always has buffer players for e.g only 6 players can play a given volleyball match but there can be 10-12 total players in the team. This model allows me to capture the playing 6 thus providing more accurate results for the question: Show all the matches played by a player in each league. Do you think I can answer this question using a different model?
      singulars
      1. PO
      1. USAravind R. Yarram
    2. COIf you link match to the player, like you have for Match L1-01, It's not possible to tell the exact teams, as 'John' is with both the Broncos and Falcons, so he could have been playing for either team which that match was going on. --- A player can BELONG_TO only one team per league. That is why the BELONG_TO is qualified with a "in_year" property. Any improvisations on top of this are welcome.
      singulars
      1. PO
      1. USAravind R. Yarram
    3. COI'll edit my answer as to not crowd the comments sections.
      singulars
      1. PO
      1. USNicholas
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload