2012-05-11 21:34
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I tried using distinct as well and it returns duplicates.

$cubes = mysql_query("SELECT distinct * FROM posts ORDER BY RAND() $limit ") or die(mysql_error());

I just want to take my posts table... and return it in a random order without duplicates.

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  $ cubes = mysql_query(“SELECT distinct * FROM posts ORDER BY RAND()$ limit”)或die(mysql_error()); 

我只是想 拿我的帖子表...并以随机顺序返回它,没有重复。

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2条回答 默认 最新

  • duanbing2963 2012-05-11 21:36

    Select only the distinct id's you need, e.g.

    SELECT distinct id FROM posts ORDER BY RAND() $limit

    Distinct works over 'all' rows you select, so if you (for example) have a unique timestamp field, chances are you'll return every single row.

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  • dongxunhua2054 2012-05-11 21:37

    Are you sure that you want to execute a SELECT DISTINCT * FROM ... and not just a SELECT DISTINCT column_name FROM ... ?

    See the SQL DISTINCT STATEMENT doc for more infos.

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