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POVery hard greatest n per group query
 

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    <p>I have a very complexe query here, I try to give you an overview about the necessary tables here:</p> <ul> <li>RPG</li> <li>RPGCharacter</li> <li>RPGPost</li> <li>User</li> </ul> <p>We have X Chars per RPG, x Posts per Char. 1 User can have X Chars, but 1 Char only depens on 1 User.</p> <p>What I want is a query in which I got the last post per RPG within information about the Username who wrote this, the character and the RPG itself addition to a number how much RPGPosts per RPG we have (total).</p> <p>This is how far I solved it until now:</p> <pre><code> SELECT c.RPGID, c.Name, DateTime, r.Name, u.Username, t.count FROM dbo.RPGCharacter c inner join ( SELECT CharacterID, MAX(DateTime) MaxDate FROM RPGPost GROUP BY CharacterID ) MaxDates ON c.RPGCharacterID = MaxDates.CharacterID INNER JOIN RPGPost p ON MaxDates.CharacterID = p.CharacterID AND MaxDates.MaxDate = p.DateTime Inner join RPG r on c.RPGID = r.RPGID Inner join [User] u on u.UserID = c.OwnerID inner join (Select RPG.RPGID, Count(*) as Count from RPGPost inner join RPGCharacter on RPGPost.CharacterID = RPGCharacter.RPGCharacterID inner join RPG on RPG.RPGID = RPGCharacter.RPGID where RPGPost.IsDeleted = 0 Group by RPG.RPGID) t on r.RPGID = t.RPGID Order by DateTime desc </code></pre> <p>Result : <a href="http://abload.de/image.php?img=16iudw.jpg" rel="nofollow">http://abload.de/image.php?img=16iudw.jpg</a></p> <p>This query gives me all I want but has an Errors:</p> <p>1) It gives me the last post per Character, but I need the last Post per RPG</p>
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    1. USKovu
    1. USKovu
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    1. COEdit the question, solved it half by myself, add a result set
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      1. USKovu
    2. COAnd this time, you answered it yourself without wishing a potentially lethal disease on anybody.
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      1. USJodrell
    3. COit would be great if you took the time to prepare an [sqlfiddle](http://www.sqlfiddle.com/) instead of posting a screenshot of SSMS
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      1. USGolfWolf
 

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